U.S. public vehicle records

2021 Chevrolet TRAILBLAZER: complaints, problems and recalls

Explore the records behind recurring owner reports.

Key facts

193 owner complaints analyzed

4 distinct recall campaigns

20,000 mi median reported failure mileage

Scope: 2021 model year. Data updated: 2026-09-30 (September 30, 2026). 32 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Unknown Or Other is the most frequently named component, appearing in 54 of 193 complaints (28.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Braking behavior	34	17.6%
Transmission and shifting	27	14.0%
Electrical and battery issues	25	13.0%
Steering behavior	11	5.7%
Engine operation	9	4.7%
Fuel system concerns	8	4.1%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Unknown Or Other

Electrical System

Power Train

Engine

Service Brakes

Fuel/Propulsion System

Forward Collision Avoidance: Automatic Emergency Braking

Steering

Component breakdown data
Category	Count
Unknown Or Other	54
Electrical System	40
Power Train	40
Engine	38
Service Brakes	29
Fuel/Propulsion System	17
Forward Collision Avoidance: Automatic Emergency Braking	8
Steering	6

Unknown Or Other: 54; Electrical System: 40; Power Train: 40; Engine: 38; Service Brakes: 29; Fuel/Propulsion System: 17; Forward Collision Avoidance: Automatic Emergency Braking: 8; Steering: 6

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 19; 25,000 to 49,999: 7; 50,000 to 74,999: 1; 75,000 to 99,999: 3; 100,000 to 149,999: 2; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (19). 161 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2020

2021

2022

2023

2024

2025

2026

2020: 6; 2021: 20; 2022: 17; 2023: 15; 2024: 46; 2025: 48; 2026: 41

Pattern summary

Unknown Or Other leads the component reports. Braking behavior appears in 34 complaint narratives. Transmission and shifting appears in 27 complaint narratives. Electrical and battery issues appears in 25 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Examples from the source records

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11354660 · 2020-09-13 (September 13, 2020)

WHEN IT IS DARK OUTSIDE AND YOU PUT THE VEHICLE IN REVERSE, THE LIGHTS NEXT TO THE BACK UP CAMERA CAUSES THE SCREEN INSIDE THE CAR TO SHOW BRIGHT WHITE. THERE IS NO WAY TO SHUT THE SCREEN OFF WHEN IN REVERSE. I HAVE TURNED THE BRIGHTNESS ALL THE WAY DOWN BUT IT IS STILL VERY BRIGHT MAKING IT IMPOSSIBLE TO SEE YOUR SURROUNDINGS SAFELY. I HAVE ALMOST HIT A TREE AND DROVE INTO A DITCH TRYING TO REVERSE AT DARK. THIS IS VERY DANGEROUS AND NEEDS TO BE FIXED.

Owner-reported narrative. 50 miles reported. Look up ODI 11354660 at NHTSA ↗

Owner report 11361549 · 2020-09-28 (September 28, 2020)

BRAKES REQUIRED EXTREME PRESSURE TO STOP THE VEHICLE. ACCIDENT BARELY AVOIDED DURING RUSH HOUR TRAFFIC ON BUSY SURFACE ROAD.

Owner-reported narrative. 1,075 miles reported. Look up ODI 11361549 at NHTSA ↗

Owner report 11366803 · 2020-10-28 (October 28, 2020)

PURCHASED ON 7/24/20. ON 8/1, FOUND A DEFECT SPOT ON GRILL. DEALERSHIP ORDERED NEW GRILL. ON 8/9, NOTICED PAINT BUBBLING/PEELING ON HOOD. 8/15 - 8/20, DEALERSHIP HAD GRILL REPLACED AND HOOD PAINTED. 8/21, NOTICED HOOD NOT PAINTED COMPLETELY. 8/24 - 8/28, DEALERSHIP HAD VEHICLE TO REPAINT HOOD. 9/17 FOUND FENDER CLIPS ON FRONT PASSENGER SIDE MISSING.10/2 BACK TO HAVE CLIPS INSTALLED. DEALER DIDN'T ORDER ENOUGH CLIPS SO WAITING ON MORE CLIPS TO ARRIVE. 10/16 BACK TO HAVE REMAINING CLIPS INSTALLED. 10/27 NOTICED PAINT PEELING UNDER PASSEN…

Owner-reported narrative. 150 miles reported. Look up ODI 11366803 at NHTSA ↗

Owner report 11374603 · 2020-11-13 (November 13, 2020)

WHEN PARKING OR ABOUT TO MOVE AND YOU PUT FOOT ON BRAKE AND GET INTO A GEAR A LOUD AUDIBLE POPPING NOISE COMES THROUGH THE STEREO SYSTEM. IT IS VERY LOUD AND NOT BASED ON HOW LOW OR HIGH THE VOLUME OF THE STEREO IS SET. THERE IS A THREAD ON TRAILBLAZERTALK.COM ABOUT IT NOW. HTTPS://WWW.TRAILBLAZERTALK.COM/THREADS/POPPING-NOISE-IN-RADIO-WHEN-BRAKES-APPLIED.244/#POST-1557

Owner-reported narrative. 4,500 miles reported. Look up ODI 11374603 at NHTSA ↗

Owner report 11375970 · 2020-11-23 (November 23, 2020)

TL* THE CONTACT OWNS A 2021 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT UPON ATTEMPTING TO PARK HER VEHICLE AT 5 MPH, THE VEHICLE INDEPENDENTLY ACCELERATED FORWARD WITHOUT WARNING, JUMPED THE PARKING MEDIAN AND CRASHED INTO A BUILDING. THE AIR BAGS DID DEPLOY UPON IMPACT. THE CONTACT SUSTAINED MINOR BRUISING FROM HER LAP BELT BUT DID NOT NEED MEDICAL ATTENTION. THE AUTHORITIES ARRIVED AT THE SCENE AND A POLICE REPORT WAS FILED. DUE TO THE FAILURE, THE VEHICLE WAS TOWED TO SID DILLON CHEVROLET - FREMONT(2500 E 23RD ST, FREMONT, NE 68025) WHER…

Owner-reported narrative. 6,000 miles reported. Look up ODI 11375970 at NHTSA ↗

Owner report 11384075 · 2020-12-18 (December 18, 2020)

THEIRS A DELAY ON BACKUP CAMERA.ALSO ON ANDROID PLAY IT SHUTS OF AND ON ON THE SCREEN.

Owner-reported narrative. Look up ODI 11384075 at NHTSA ↗

Owner report 11394975 · 2021-02-06 (February 6, 2021)

THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO.

Owner-reported narrative. 7,300 miles reported. Look up ODI 11394975 at NHTSA ↗

Owner report 11396552 · 2021-02-16 (February 16, 2021)

BREAKS SQUEAKING

Owner-reported narrative. Look up ODI 11396552 at NHTSA ↗

Recall history

4 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

20V295000 · Equipment:Other:Labels | Tires

Reported: 2020-05-21 (May 21, 2020)

General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection and Rims."

Consequence: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.

Remedy: GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070.

NHTSA campaign record ↗

20V537000 · Seats:Critical Fasteners | Seats

Reported: 2020-09-03 (September 3, 2020)

General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.

Consequence: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.

Remedy: GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is A202304380.

NHTSA campaign record ↗

20V588000 · Service Brakes

Reported: 2020-09-24 (September 24, 2020)

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.

Consequence: If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

NHTSA campaign record ↗

21V440000 · Equipment:Mechanical:Accessory Scissor/Screw/Bottle Jack/Lift:Stand

Reported: 2021-06-10 (June 10, 2021)

General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.

Consequence: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.

Remedy: Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A212335470.

NHTSA campaign record ↗

Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

193 unique complaints in this selection. Analysis snapshot: 2026-09-30.

16.6%Usable mileage32 / 193 records

100.0%Valid incident date193 / 193 records

100.0%Valid filing date193 / 193 records

100.0%Ordered incident and filing dates193 / 193 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

From model yearThrough model year

Component complaint heatmap
Component	2014	2021	2022	2023	2024	2025	2026
Electrical System	00.0% No examples available for this selection.	4020.7% ODI 11426589 Within 3 months of owning the vehicle I started to hear a crackling sound coming from the passenger speaker in the door. At first it was loud and I thought someone hit me. It did it several times and then stopped. It has happened about a dozen times since I have owned the vehicle. When I took it in for my oil change I told them and they could not replicate it so they didn't know what it was and didn't see anything. It actually just happened again yesterday so when I take it in again I will tell them about this. We thought maybe it was onl… Look up ODI 11426589 at NHTSA ↗	3027.3% ODI 11538369 WHEN YOU SHIFT TO PARK A MESSAGE COMES UP AND SAYS SHIFT TOPARK WHEN IT IS ALREADY IN PARK. THE MAIN PROBLEM IS THE VEHICHCLE WILL NOT SHUT OFF. YOU HAVE TO DO MANY DIFFERANT THINGS TO TRY TO GET THE MESSAGE TO LEAVE AND THEN IT WILL CUT OFF. THIS HAS BEEN HAPPENING NOW SINCE IT HIT 29700 MILES AND DOES IT ALMOST EVERYTIME WE DRIVE IT NOW. THERE IS A SERIOUS PROBLEM HERE IF YOU CANT SHUT OFF THE VEHICLE . I ALSO NOTICED MANY OTHER PEOPLE HAVING THE SAME ISSUE WITH THE TRAILBLAZERS. THIS NEEDS A RECALL FIX. Look up ODI 11538369 at NHTSA ↗	1319.1% ODI 11510822 When I start my car my car play will not connect. When I start my car and put my car in reverse to use the back up camera and then put in drive the back up camera will remain on. The speakers are static sometimes. The screen will not work and it will be slow or shut off completely. I have pulled over and shut off my car and opened my door to shut off screen and it remains on for a couple mins playing music even when I shut it off. Look up ODI 11510822 at NHTSA ↗	1133.3% ODI 11604270 I was driving and the vehicle cluster display and radio went out. I was unable to see how fast i was going and any system info. It eventually came back on. During this time the car was continuing to drive but unable to see any lane - blindspot warning or speed or system controls or warning events. Look up ODI 11604270 at NHTSA ↗	1359.1% ODI 11660226 While driving the car stalled and eventually stopped running. The battery was still on, but there was no power to the engine. The car needed to be pushed out of the road and towed to the dealership for work. Look up ODI 11660226 at NHTSA ↗	337.5% ODI 11730351 My brand new two week old 2026 Chevrolet Trailblazer LS Issue: Auto Start/Stop system failure, the engine shuts off and does not restart Description:  While stopped at traffic lights with the auto start/stop feature engaged, the engine shuts off as designed. However, when I release the brake pedal, the engine does not restart as it should. Instead, the vehicle displays a message stating “press brake to start,” and the vehicle behaves as if it has been completely turned off. This leaves the vehicle temporarily disabled in traffic and unable to… Look up ODI 11730351 at NHTSA ↗
Fuel System, Gasoline	00.0% No examples available for this selection.	10.5% ODI 11516298 · 21,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, an abnormal fuel odor was coming from the vehicle, without warning. While in traffic, the contact started feeling dizzy and pulled over. The contact’s son who was following her vehicle, also stated that he could smell fuel upon approaching the vehicle. The following day, the vehicle was taken to a dealer where the mechanic discovered a crack in the fuel rail. Upon investigation, the contact discovered Service Bulletin: PIP5765, which she link… Look up ODI 11516298 at NHTSA ↗	10.9% ODI 11514758 · 400 mi The contact owns a 2022 Chevrolet Trailblazer. The contact stated while starting the vehicle, the check engine warning light illuminated. The vehicle was taken to the dealer and the dealer stated that the purge valve needed to be replaced. The vehicle was repaired. On another occasion, the contact experienced a flat tire due to a nail in the tire. While the driver side rear tire was being removed the Lug nuts and the bolts on the axle were damaged. The vehicle was taken to the dealer and the dealer stated that the CV axle needed to be replaced.… Look up ODI 11514758 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Exterior Lighting	00.0% No examples available for this selection.	10.5% ODI 11354660 · 50 mi WHEN IT IS DARK OUTSIDE AND YOU PUT THE VEHICLE IN REVERSE, THE LIGHTS NEXT TO THE BACK UP CAMERA CAUSES THE SCREEN INSIDE THE CAR TO SHOW BRIGHT WHITE. THERE IS NO WAY TO SHUT THE SCREEN OFF WHEN IN REVERSE. I HAVE TURNED THE BRIGHTNESS ALL THE WAY DOWN BUT IT IS STILL VERY BRIGHT MAKING IT IMPOSSIBLE TO SEE YOUR SURROUNDINGS SAFELY. I HAVE ALMOST HIT A TREE AND DROVE INTO A DITCH TRYING TO REVERSE AT DARK. THIS IS VERY DANGEROUS AND NEEDS TO BE FIXED. Look up ODI 11354660 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	13.0% ODI 11709501 Unit used as a rental from Avis. Night time driving will cause on-coming traffic to flash high beams while my lights are in low beam mode. This is a daily problem with a multitude of on-coming drivers as the LED headlights are perceived to be extra bright / blinding. Look up ODI 11709501 at NHTSA ↗	14.5% ODI 11702070 The vehicle displayed a warning on the dash that the battery was not charging properly and vehicle may stall. The vehicle was checked at dealership and issue was disregarded. 3 days later the vehicle showed the same warning and the battery light flickered, there was a chane in the power and lights dimmed. This was evaluated by dealership, apparently it is a known issue but no resolution available. When the battery light flashed during the second event there was no control over the vehicle (power/steering) creating a very concerning safety issue… Look up ODI 11702070 at NHTSA ↗	00.0% No examples available for this selection.
Electrical System: Instrument Cluster/Panel	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	11.5% ODI 11694730 · 51,174 mi The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the instrument cluster flickered, and the vehicle stalled. In addition, the radio turned off independently. The contact turned the vehicle off. The contact stated that while restarting the vehicle, the vehicle started. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure but provided no assistance. The contact referenced an unknown recall which had a similar failu… Look up ODI 11694730 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Fuel/Propulsion System	00.0% No examples available for this selection.	178.8% ODI 11449335 I had a smell of gasoline inside and under hood of 2021 Trailblazer LT 1.3l. Took to Chevrolet dealer.Confirmed gas odor. Gas was leaking from fuel rail.Sevice manager said it was pouring out. Found out GM has Service bulliten for this PIP5765 that covers both Chevy Trailblazer with 1.3l and Buick Encore GX with 1.3l motors. This has been a scary situation considering gas fumes could have caught fire. Look up ODI 11449335 at NHTSA ↗	54.5% ODI 11478314 Check engine light keeps coming on. Hard shifting. Takes too long for brake to engage. Fuel injector replaced. This car is only 3 months into service. Look up ODI 11478314 at NHTSA ↗	34.4% ODI 11531643 My 2023 Chevrolet Trailblazer is about 3 months old and it’s been making squeaky noises when I break. The squeaky sound is getting worse over time and I have an appointment scheduled with Chevrolet to get this resolved. My concern is a 2022 recall on this same vehicle due to the break system. Therefore, I am reporting this for the year or 2023 because my car is brand new and making screech noises every time I break. Also, my electric system randomly stops working. For example, my touch screen Car play system pixelates and sometimes doesn’t even… Look up ODI 11531643 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Power Train:Automatic Transmission	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	14.5% ODI 11644780 See attached document for complaint. Look up ODI 11644780 at NHTSA ↗	00.0% No examples available for this selection.
Power Train	1100.0% ODI 11206347 · 79,000 mi TL* THE CONTACT OWNS A 2014 CHEVROLET TRAILBLAZER. WHILE DRIVING 35 MPH, THE VEHICLE STARTED TO HESITATE, MADE AN ABNORMAL NOISE, AND STALLED. THE VEHICLE WAS ABLE TO BE RESTARTED, BUT THE FAILURES CONTINUED AND THERE WAS DIFFICULTY SHIFTING GEARS. THE CONTACT WAS ABLE TO DRIVE HOME. THE DEALER WAS NOT NOTIFIED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 79,000. THE VIN WAS INVALID. Look up ODI 11206347 at NHTSA ↗	4020.7% ODI 11486048 The vehicle began to give the error Shift to Park when the vehicle was in park and after the power was shut off. Because of this I cannot safely turn off the vehicle because it cannot recognize it's in park and will run the battery down whenever I use the vehicle. This problem has been previously presented in other models manufactured by GM. I am taking the vehicle in for inspection at a local Chevrolet dealership on 9/24/22 at 8 am. This issue first started around the second week of September this year with one or two errors here and there. No… Look up ODI 11486048 at NHTSA ↗	3229.1% ODI 11476832 · 500 mi The contact owns a 2022 Chevrolet Blazer. The contact stated while driving 70 MPH with the cruise control activated, the Forward Collision Avoidance system activated erroneously. The contact stated no warning light was illuminated. The contact was able to continue driving to his destination. The contact also stated that the vehicle occasionally accelerated independently. The contact took the vehicle to the local dealer and made them aware of the failure. The contact stated that he had taken the vehicle to the local dealer three times. The vehic… Look up ODI 11476832 at NHTSA ↗	913.2% ODI 11508665 I have noticed that when it's very cold, the vehicle will not shift to the two highest gears (I think) until 20+ minutes into my trip, and that's with having auto-started the vehicle 10 minutes prior to getting in it. So it takes about 30 minutes for the vehicle to shift into whatever the two highest (I think) gears are. This morning, 20+ minutes into my trip, I was going 71mph while pushing 4,000rpms, and it wouldn't shift. The temperature outside is 1 degree fahrenheit. The same thing was happening when it was cold in December. That day I don… Look up ODI 11508665 at NHTSA ↗	721.2% ODI 11616298 See Prior Report 11603493 on 7/19/2024. [XXX] Engine. light on -Stabiltrak Stability - Control System Requires your attention NOW. Cernohous Chevrolet "repaired". Then [XXX] Engine light on again. Cernohous Chevrolet" repaired." [XXX] Engine light on for the 3rd time. They have had my 2024 Trailblazer since [XXX]. It might be a wiring issue or switch needs replaced per Ron Murphy and Jack. I am concerned this vehicle purchased new - cash- is a lemon. Other than yes the Engine light is on - no one can tell me the meaning and correct it. How se… Look up ODI 11616298 at NHTSA ↗	627.3% ODI 11623243 Vehicle would not go over 20 mph at times. When vehicle would shift from 2nd to 3rd gear the engine would race yet not engage. Look up ODI 11623243 at NHTSA ↗	112.5% ODI 11733036 · 100 mi The contact owns a 2026 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle failed to properly shift into gear while the gear shift lever was in use. The check engine and another unknown warning light were illuminated. The vehicle was towed to a local dealer, where several undisclosed fault codes were cleared. The vehicle was towed back to the same local dealer, where it remained for further investigation. The contact was informed that the transmission might need to be replaced. The vehicle was not repair… Look up ODI 11733036 at NHTSA ↗
Air Bags	00.0% No examples available for this selection.	31.6% ODI 11427287 On June 10, 2021 I was driving home at a speed of approx 65 miles an hour from the grocery store on Interstate 255 when all my side airbags suddenly exploded. My 2021 Chevy Trailblazer RS was 3 months old and had 3500 miles on the car. After exiting the vehicle, I found the rear passenger tire was flat. Upon changing the tire, we discovered that the wheel had split apart. There is no damage to the body or underneath the vehicle. There was no large potholes or debris anywhere in the area. Upon starting the investigation with GM regarding … Look up ODI 11427287 at NHTSA ↗	10.9% ODI 11496544 The contact’s daughter owns a 2022 Chevrolet Trailblazer. The contact stated that while her daughter’s vehicle was idled at a stop, another vehicle crashed into the rear of the vehicle. As a result, the contact’s daughter crashed into the rear of another vehicle in front of her. The air bags failed to deploy. Medical attention was required. The contact’s daughter and the front passenger both sustained muscle soreness. A police report was filed. The vehicle was towed to the dealer however, no diagnosis was determined. The vehicle was not repaire… Look up ODI 11496544 at NHTSA ↗	45.9% ODI 11527374 My vehicle was struck on the left front drivers side while traveling 55 mph. My car flipped multiple times, but when it came to a rest on the drivers side, my head was trapped between the driver's window and the side curtain airbag. I couldn't move the airbag, so I had to move my seat back and bend my neck/head back and down out to get free. My face/head/neck/upper shoulder suffered bruising on the RIGHT SIDE of my body from impact of the airbag. This shouldn't have been the case - the deployment should have impacted the left side of my face.… Look up ODI 11527374 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
Component	Mileage range (25th–75th percentile)	Median	Usable records	Examples
Unknown Or Other	Too few reports for a range	2,000 mi	1 (sparse)	ODI 11403605 · 2,000 mi TWO TIMES I HAVE HEARD A LOUD POP NOISE COMING THROUGH MY STEREO SPEAKERS. I NOTICED IT WHEN APPLYING THE BRAKES. I WENT ON A TRAILBLAZER FORUM AND A FEW OTHERS HAD REPORTED THE SAME THING. I HEARD THE POP TODAY WHEN I WAS PULLING INTO A PARKING SPOT AND APPLYING THE BRAKES. Look up ODI 11403605 at NHTSA ↗
Electrical System	Too few reports for a range	5,000 mi	3 (sparse)	ODI 11432454 · 5,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the… Look up ODI 11432454 at NHTSA ↗ ODI 11440926 · 1,574 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact had to restart the vehicle to correct the failure. The failure was intermittent. The vehicle was taken to the dealer however, the dealer could not duplicate the failure. The vehicle was taken to another dealer, Frontier Mo… Look up ODI 11440926 at NHTSA ↗ ODI 11734601 · 75,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 40 MPH, the vehicle stalled. During the failure, several unknown warning lights illuminated, and the vehicle was jump-started. The Auto START/STOP function was disabled for the vehicle to operate properly. The vehicle was inspected by an independent mechanic; however, the failure could not be duplicated. The contact replaced the battery, and the failure was almost resolved. Additionally, while depressing the brake pedal, the vehicle failed to st… Look up ODI 11734601 at NHTSA ↗
Power Train	20,000–40,000 mi	32,000 mi	10	ODI 11526195 · 20,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated while driving 65 MPH the contact struck a deer on the front passenger side causing minor damages to the vehicle. No one was injured. The contact was able to stop on the side of the road. The contact smelled a burning odor and noticed that smoke was coming from the floor of the vehicle on the front passenger side near the seat belt assembly. The contact and the passenger were able to exit the vehicle, but after exiting the vehicle burst out in flames. The fire department was able … Look up ODI 11526195 at NHTSA ↗ ODI 11592862 · 33,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated after parking the vehicle and pressing the Push to Start button to turn off the vehicle, an alarm sounded and the message "Shift to Park" was displayed. The contact shifted out of park(P) and slammed the gear shifter into park(P). The contact was then able to park and to turn off the vehicle. The contact stated that the failure recurred intermittently while parking on a level surface. The contact stated that on several occasions the failure required turning off and restarting the… Look up ODI 11592862 at NHTSA ↗ ODI 11624902 · 16,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while the gear shifter was in the park(P), the message “Shift to Park” was displayed. The vehicle was taken to an independent mechanic, who determined that the gear shifter needed to be replaced. The mechanic informed the contact to use the parking brake while parking the vehicle. The contact called the local dealer and was informed that parts were on back order. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage wa… Look up ODI 11624902 at NHTSA ↗
Engine	42,000–81,000 mi	48,482 mi	5	ODI 11432454 · 5,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the… Look up ODI 11432454 at NHTSA ↗ ODI 11604750 · 48,482 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated while driving at 5–10 MPH, there was an extremely loud clicking and rattling sound coming from the vehicle. The contact stated that there was an unknown object moving inside the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the turbo needed to be changed. The vehicle was repaired, but the failure recurred. The dealer informed the contact that the sound was duplicated in other similar vehicles and informed… Look up ODI 11604750 at NHTSA ↗ ODI 11657316 · 128,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while the vehicle was parked, the vehicle was turned off however, the blower fan independently activated. No warning light was illuminated. The contact's husband had just parked the vehicle upon arriving at the place of employment. The contact's husband is a certified mechanic. The vehicle was diagnosed with coolant intrusion and a misfire in the engine. The contact was informed that the spark plugs needed to be replaced; however, the spark plugs had to be ordered. The vehic… Look up ODI 11657316 at NHTSA ↗
Service Brakes	1,075–4,500 mi	3,746 mi	5	ODI 11361549 · 1,075 mi BRAKES REQUIRED EXTREME PRESSURE TO STOP THE VEHICLE. ACCIDENT BARELY AVOIDED DURING RUSH HOUR TRAFFIC ON BUSY SURFACE ROAD. Look up ODI 11361549 at NHTSA ↗ ODI 11374603 · 4,500 mi WHEN PARKING OR ABOUT TO MOVE AND YOU PUT FOOT ON BRAKE AND GET INTO A GEAR A LOUD AUDIBLE POPPING NOISE COMES THROUGH THE STEREO SYSTEM. IT IS VERY LOUD AND NOT BASED ON HOW LOW OR HIGH THE VOLUME OF THE STEREO IS SET. THERE IS A THREAD ON TRAILBLAZERTALK.COM ABOUT IT NOW. HTTPS://WWW.TRAILBLAZERTALK.COM/THREADS/POPPING-NOISE-IN-RADIO-WHEN-BRAKES-APPLIED.244/#POST-1557 Look up ODI 11374603 at NHTSA ↗ ODI 11394975 · 7,300 mi THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO. Look up ODI 11394975 at NHTSA ↗
Forward Collision Avoidance: Automatic Emergency Braking	Too few reports for a range	7,300 mi	1 (sparse)	ODI 11394975 · 7,300 mi THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO. Look up ODI 11394975 at NHTSA ↗
Steering	Too few reports for a range	160 mi	1 (sparse)	ODI 11415441 · 160 mi I WAS DRIVING MY BRAND NEW 2021 TRAILBLAZER (ONLY 160 MILES) AND STEPPED ON THE BRAKE TO STOP AT THE END OF A STREET. SUDDENLY, I GOT ALERTS THAT MY BRAKE SYSTEM HAD FAILED AND RIGHT AFTER THAT, ANOTHER ONE, SAYING THAT THE POWER STEERING NEEDED TO BE SERVICED. AT THAT POINT, IT REQUIRED MUCH MORE PRESSURE ON THE BRAKE TO STOP, AND THE BRAKES DIDN'T SEEM VERY RESPONSIVE. LATER I SHUT OFF THE ENGINE, AND WHEN I STARTED IT AGAIN, THE CHECK ENGINE LIGHT WAS STILL ON, BUT I THINK THE BRAKES WERE WORKING AGAIN. I'M NOT SURE BECAUSE I DIDN'T WANT TO … Look up ODI 11415441 at NHTSA ↗

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

ComponentPeriod

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples

Monthly complaint and recall timeline
Month	Complaints	Campaigns announced	Examples
2024-10	2	None	ODI 11620584 After placing the vehicle in park I get the “shift to park error”. I can’t leave the vehicle, or lock it. It can take any where from 5 to thirty minutes for it to actually read the shift. My car is now not reading my key 80% percent of the time. The vehicle turns off while driving down the road. Saying no “remote detected”. The key has been locked in the Car twice. Which should be impossible. I’ve been stranded outside of my vehicle at night in Atlanta for long periods of time. Trying to get the vehicle to unlock because it is not reading the k… Look up ODI 11620584 at NHTSA ↗ ODI 11621149 When attempting to park the car I am able to shift into park, however, I get a message on the dashboard to “shift to park”. Dashboard also shows a “p” to reflect car is in park creating a contradiction on the dashboard of displayed items. When this occurs the car will not shut off. Dealer service has indicated this is not producing an error code, they have had many complaints, and the issue is not covered by power train warranty and part is back ordered. I am very concerned about the safety of my vehicle given the indicated failures of the shif… Look up ODI 11621149 at NHTSA ↗
2024-11	11	None	ODI 11623129 On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a … Look up ODI 11623129 at NHTSA ↗ ODI 11623400 Reduced engine power, code P0014. Camshaft actuator oil control valve bolt stuck open. All the signs and symptoms per bulletin released by NHSTA to repair if not sold yet. Extremely hazardous when accelerating to get on highway and engine power reduces. Look up ODI 11623400 at NHTSA ↗ ODI 11623439 After putting vehicle into park and shutting off the engine, the warning appears “shift to park” and will not allow the vehicle to completely shut off. For the past few months I have been able to maneuver the shifter and the car recognize it is in park, however this past weekend nothing would work and the vehicle stayed in accessory mode until the battery died. I have spoken to two local dealerships and they are aware of the problem. I am currently awaiting a local repair shop to research the issue and get back to me if they can repair it a… Look up ODI 11623439 at NHTSA ↗
2024-12	3	None	ODI 11628521 2021 Chevy Trailblazer When I go to park my car, there is a constant error of 'Shift to Park'. The car is already in park. I must wiggle the shifting knob, restart my car, or drive around before my car will turn off and recognize that it is in park. My safety is compromised each time I get in the car. If the car cannot recognize it is in park, what happens when it can't recognize it is in drive as I am on the road? Or reverse? Or any gear? My safety is also affected because my car does not realize it is in park, and at times I cannot exit my… Look up ODI 11628521 at NHTSA ↗ ODI 11632626 I have had this vehicle at the garage for the 4th time in 2 months for the same issues. It would not start. the fuse box keeps blowing. The starter was replaced and the Alternator was replaced and the fuse box 3 times so far. It is in the auto repair shop now for the same issues. the mechanic has done an inspection and diagnostics and cant find what is wrong. There were no warning lights to warn me of anything. I have spent 4500+ so far in repairs and more to come. Look up ODI 11632626 at NHTSA ↗ ODI 11633315 I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe. Look up ODI 11633315 at NHTSA ↗
2025-01	2	None	ODI 11636360 Found standing water in spare tire well. Back seat constantly wet, growing mold. The whole back area is moldy, mold under driver seat. My back passenger door seal has mold and water. Seat belts in back, MOLD. I had to wear a mask just to drive to the store. The mold turning black the day I took it to a shop for a water test. It's been two days and I still haven't heard anything about the water test. Look up ODI 11636360 at NHTSA ↗ ODI 11637782 IN January my fuel gage stopped working , unable to know how much gas I had. The fuel pump and floater needed to be replaced If fuel was not getting to the engine the vehicle would stop working causing a possible accident with other drivers . I did not use this vehicle for many days until a mechanic cleared for useage . It cost me $320.00 of my own money to fix this for safety concerns. As of today 1/22/25 I has been fixed by A-Plus in North Fort Myers. Look up ODI 11637782 at NHTSA ↗
2025-02	4	None	ODI 11640587 On numerous occasions (typically when needing to accelerate into the flow of traffic), the Reduced Engine Power message and engine light came on, the car rapidly decelerated to 35 mph, and would not accelerate rapidly. Turbocharger, waste gate actuator, and other parts need replaced and reprogrammed, but issue persists. On one occasion, power was reduced and car was stuck "revving" at 25 mph. I have had to swerve off the road to avoid a crash of being rear-ended. Issue started around 60,000 but has happened at least 5 separate times. Look up ODI 11640587 at NHTSA ↗ ODI 11643617 A loud popping noise heard through the radio when light pressure applied to brakes. Noise loud enough to scare the hell out of all the occupants in the car. Brakes squeaked when car was in reverse. Tried to slow down on wet pavement. Car started to veer to the right. Forward collision warning nor automatic emergency braking worked. Pushed brake all the way to the floor and the car did not slow. Rear ended another car. No airbags deployed. My passenger was okay. I got diagnosed with a concussion. Do not know if the occupants in the other car … Look up ODI 11643617 at NHTSA ↗ ODI 11644597 On 2/21/25 when I turn on vehicle the engine light came on. I checked for the code and it was P1467 for the Evap Purge Pump. I checked for the gas pump cover and didn't see anything damaged and closed it tight but engine light still on. I feel the gas or engine smell is also coming through the inside of car when fan is turned on and not safe health wise. Look up ODI 11644597 at NHTSA ↗
2025-03	1	None	ODI 11649945 On [XXX] while driving on the highway my check engine light came on. The car turned off while going 60MPH on the 18 mile stretch towards Miami from Key west and luckily there were no cars around me. I checked for the code and it was P1467 for the Evap Purge Pump. I took it to a dealership in Miami and they told me it would be fine to drive that the part needed to be replaced. I drove back to key west and bought the replacement part. That same part did not work. I checked to see if the part was receiving voltage and it was. So i will continue wi… Look up ODI 11649945 at NHTSA ↗
2025-04	7	None	ODI 11652476 · 31,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated while parking the vehicle, the gear shifter was shifted into park, however the shift to park warning light illuminated. In addition, the vehicle failed to turn off. The contact made several attempts to shift to park, and the gear shifter failed to function as intended. The contact stated that after several attempts, the shift to park warning light turned off and the contact was able to park and turn off the vehicle. The vehicle was not diagnosed or repaired by an independent mech… Look up ODI 11652476 at NHTSA ↗ ODI 11652696 My vehicle keeps flashing: "Shift to park" when I am in park and then my car is unable to shut off the battery even though I'm in park and our of the vehicle Look up ODI 11652696 at NHTSA ↗ ODI 11656803 Model # CC398GYU, purchased in April of 2024 needs to be included in the foam head rest recall because the foam is accessible by my toddler. The foam presents a choking hazard. It is not secure and the foam is exposed. Look up ODI 11656803 at NHTSA ↗
2025-05	4	None	ODI 11658663 Getting error message for shift to park not found when vehicle is in park. Chevy already has a recall for this but my vin is not one showing it is affected. Vehicle is at the dealer now for diagnosis and repair. Look up ODI 11658663 at NHTSA ↗ ODI 11659117 Upon starting vehicle it would idle for 30secs to 1 minute before shutting completely down, then would prompt to engage brake and push start/stop button to turn back on. Two different times while driving at 60+ mph the vehicle completely stalled losing power steering and brakes. Both times when the vehicle shut down it would say to push start/stop button and then place vehicle in park, engage brake to restart. When the vehicle stalled I was getting onto a highway and was about 2 seconds from being hit from behind by a semi while I was at almost… Look up ODI 11659117 at NHTSA ↗ ODI 11659124 At 44 K miles, my car started giving me a message "Shift in to park" after I stopped my car and turned off the motor. I was unable to essentially shut my engine off and leave my vehicle. I called the GMC shop, where they diagnosed it as faulty wiring. It is not under warranty, therefore I will encure the cost which is not a normal item to go out on a vehicle. Also, our 22 Trailblazer is also giving us this same message. Look up ODI 11659124 at NHTSA ↗
2025-06	4	None	ODI 11665088 · 20,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while attempting to remove the key from the ignition, the key remained stuck in the ignition cylinder. The contact had to turn off and restart the vehicle several times to be able to remove the key. The contact stated that the failure occurred intermittently. The vehicle was taken to the dealer who sprayed the ignition cylinder to clean the cylinder; however, the failure persisted. The vehicle was returned to the dealer who diagnosed that the shift lock mechanism failed to r… Look up ODI 11665088 at NHTSA ↗ ODI 11666344 · 81,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power and was unable to accelerate above 40 MPH. The contact stated that after the failure, the vehicle went into LIMP Mode. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the variable valve timing system. Additionally, the dealer found that the intake camshaft actuator was incorrectly positioned, resulting in damages to the exhaust camsh… Look up ODI 11666344 at NHTSA ↗ ODI 11666643 Month of June of 2024 I purchased 2021 Chevrolet Trailblazer LT with 31k miles on the odometer I had to service my vehicle and had to replace the fuel pump, took weeks to get in due to the strike that took place, Chevrolet will not back behind their employees nor their consumers. They only honored me 15pts on my vehicle, a few months pass and more issues arise one being the manifold sensor (a) and then another two days on the road the wiring harness thankfully my car was under a secondary warranty and I paid $200 per repair, although this becam… Look up ODI 11666643 at NHTSA ↗
2025-07	3	None	ODI 11673827 Put vehicle into park, attempt to turn off car, get message shift to park after the vehicle is already in park. Vehicle keeps message shift to park not allowing car to fully turn off even though car is not started it keeps flashing message shift to park and system such as radio will not turn off as the car thinks it's not in park even though it already is. Look up ODI 11673827 at NHTSA ↗ ODI 11676063 Vehicle Diagnostic Summary – Trouble Codes Explained 1. P0562 – System Voltage Low The vehicle’s electrical system is running at low voltage. This could be due to a weak battery, a failing alternator, or poor electrical connections. It may cause various electronic issues and unexpected shutdowns if not fixed. 2. P1005 – Fuel Level Sensor Control Module: Too Many Resets The fuel level sensor module has been reset too many times, likely due to electrical glitches. This may cause the fuel gauge to be inaccurate or unstable. 3. P14C0 / P14CD – F… Look up ODI 11676063 at NHTSA ↗ ODI 11676670 I am unsure which component maybe failing, Vehicle has not been in altered in any way ,inspected yet, nor has any warning indicators. This 2021 Chevrolet Trailblazer uses a traditional key for ignition. On several occasions now, the key is becoming lodged/stuck in the ignition when attempting to shut down or turn off the engine and remove the key. Have made sure foot is on the brake, front steering tires are straight, Shifter is properly engaged in the park position, and even jiggled the key tumbler assembly. Have had to leave the stuck key in … Look up ODI 11676670 at NHTSA ↗
2025-08	7	None	ODI 11677858 I get a shift to park warning after putting the car into park. I’m not able to turn the car off, this has drained the battery and caused safety issues for me and my child Look up ODI 11677858 at NHTSA ↗ ODI 11678883 · 57,850 mi vThe contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed with a crack between the muffler and front pipe. The contact was informed that the muffler needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. … Look up ODI 11678883 at NHTSA ↗ ODI 11681574 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while stopped at stop light, the vehicle shut off with the check engine warning light illuminated. Due to the failure, the vehicle was towed to a dealer and the transmission was repaired. Despite the repair, the vehicle continued to shut off without warning. One day while driving 60 MPH, the vehicle shut off without warning, and the contact was stranded in the middle of the highway. The vehicle failed to restart after several attempts even with assistance from the Highway Pa… Look up ODI 11681574 at NHTSA ↗
2025-09	6	None	ODI 11685280 multiple times of getting the warning that i need to "shift into park" when the vehicle is in park. i did have fixed at my local dealer but did have to pay, I know this is been an ongoing issue with many trailblazer . Chevy should look into recalling the failing part. Look up ODI 11685280 at NHTSA ↗ ODI 11685359 While driving, a service warning came on that reads "Service Power Steering" - when that came on, the brakes ceased to work properly and required significant force, causing a big delay in braking. It is not safe to drive due to the limited braking. This mirrors the recall situation for other 2021 Trailblazer models with the interrupted brake sensor. Look up ODI 11685359 at NHTSA ↗ ODI 11685663 My vehicle started flashing “shift to park” about 2 weeks ago, after being in a GM dealership for 18 days for repair. I immediately notified them my CEL was back on and what it was showing on my dashboard ( shift to park). I dropped it off on a Saturday and that same day they told me they could not figure out what was wrong with it. I texted the Service Advisor of the notification I was having and if that was the issue to which she did not do anything about. The issue is that it will stay on, and flash and can drain my battery out and it will n… Look up ODI 11685663 at NHTSA ↗
2025-10	6	None	ODI 11690808 Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say i… Look up ODI 11690808 at NHTSA ↗ ODI 11691830 I have a shift to park message that is malfunctioning and I can't shut off my car. Look up ODI 11691830 at NHTSA ↗ ODI 11693768 · 42,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that after reversing, the transmission was shifted to drive (D), but the vehicle failed to immediately recognize the selected gear. The check engine warning later illuminated. The vehicle was taken to an independent mechanic, who determined that the under boost, transmission control module, and transmission control solenoid had failed, and there was a loss of communication with the radio and loss of communication with the telematic control module. The mechanic advised the contact… Look up ODI 11693768 at NHTSA ↗
2025-11	2	None	ODI 11698851 2021 Chevrolet Trailblazer check engine code P1467 Look up ODI 11698851 at NHTSA ↗ ODI 11700638 The issue is the yellow engine light lit up on the dash of my 2021 Trailblazer in late August of 2025. At the same time, the cluster displayed the message "Engine Power is Reduced". Over the next few weeks my car engine would randomly stall out while I was driving! As you can imagine, this is a very unsafe driving condition. My car stalls and I'm in traffic and have no ability at all to control the vehicle. This happened at least 4 times to me. When I checked the On Board Diagnostic codes on my vehicle the system reported back U060F (Mass… Look up ODI 11700638 at NHTSA ↗
2025-12	2	None	ODI 11706396 After trying to remove rhe key from ignition, it gets stuck and won't come out unless I turn the car on, shift it into drive, wiggle the steering wheel, and try it again. Sometimes it works. Alot of times it take 5-10 min to get it out. Look up ODI 11706396 at NHTSA ↗ ODI 11708084 The rear hatch interior trim that seals the hatch from exterior elements and sounds continuously comes off, even after having dealership to repair/replace. The trim will not remain in place and is a distraction while driving and hearing out of vechile noise. And the winter weather causes car not to maintain a constant heat temp Look up ODI 11708084 at NHTSA ↗
2026-01	1	None	ODI 11708387 My 2021 Chevrolet Trailblazer has a defect in the gear shifter system that intermittently fails to recognize when the vehicle has been shifted into “Park.” When this occurs, the vehicle displays a persistent “Shift to Park” warning message and prevents the engine from being turned off or the vehicle from being locked. This malfunction creates a safety and consumer concern, as I am unable to exit and secure the vehicle and am forced to remain inside or leave the vehicle running and unattended. The issue interferes with normal vehicle operation a… Look up ODI 11708387 at NHTSA ↗
2026-02	3	None	ODI 11715160 Shift to park message coming on, not allowing vehicle shutoff. No inspection yet, in looking up issue, was prompted to report. Look up ODI 11715160 at NHTSA ↗ ODI 11720155 Shift to park. Vehicle will not shut off. Also trying to start vehicle having to repeatedly push brakes down hard and push to start before finally starting. I bought this vehicle with 0 miles this has been an on going on and off problem since around 20000 miles have been put on. Look up ODI 11720155 at NHTSA ↗ ODI 11720307 This vehicle was sold as new when this vehicle had a defective Turbo Underboost issue from a ECM Issue previously prior to the 2022 Trailblazer being sold to us. This vehicle has a shift to park issue which sticks when you try to Park the vehicle. Next This vehicle has had 4 prior incidents of attempted repair of this Turbo Underboost and a failure to pass emissions which lead to the engine and transmission failure of this vehicle. I have waited since July 6, 2025 of this vehicle being in the shop no rental no loaner. Now no replacement vehicle… Look up ODI 11720307 at NHTSA ↗
2026-03	7	None	ODI 11722752 I was driving an hour away from home and suddenly my muffler and exhaust started dragging, 49,000 miles, 5 years old AND just passed inspection A WEEK AGO. Luckily, it didn’t become completely unattached because that could have caused an accident as there were cars behind me. Complete safety hazard Look up ODI 11722752 at NHTSA ↗ ODI 11722954 · 135,884 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 70 MPH, the brakes became inoperative. The message "Brake Failure - Speed Reduced to 53 MPH – Service Required" was displayed on the instrument panel. The vehicle was taken to a dealer; however, the dealer stated that the vehicle could not be diagnosed because diagnostic tests were available only by appointment. The dealer informed the contact that the computer software needed to be reset to drive the vehicle back to the residence. The vehicle was… Look up ODI 11722954 at NHTSA ↗ ODI 11723367 My transmission is defective and past 60,000 miles but only a little. I had a diagnosis and it needs replacing like many of these trailblazers in the ongoing lawsuit. I cannot pay for it and it should not be broken! Look up ODI 11723367 at NHTSA ↗
2026-04	7	None	ODI 11731055 While driving at highway speeds, my vehicle suddenly enters low power/limp mode, severely reducing acceleration and creating a dangerous situation in traffic. This occurred multiple times. The dealership diagnosed the issue as a faulty gas pedal (accelerator) sensor and stated the vehicle is unsafe to drive under these conditions. The required part has been on back order for months, and no repair has been completed. The dealership promised a loaner vehicle due to safety concerns but failed to provide one and has had no communication for over fo… Look up ODI 11731055 at NHTSA ↗ ODI 11731220 When you put the vehicle in park, it does not register on the dash that the vehicle is in park so therefore you cannot turn the vehicle off. I’ve read this as well known in the 2021 trailblazers Look up ODI 11731220 at NHTSA ↗ ODI 11731702 While driving down the interstate my 2021 Chevy Trailblazer suddenly flashed "Battery Saver Mode" on the dash and shut off completely. I was able to coast to the side of the road and call for help. This was a MAJOR safety issue as my 4 year old son was riding with me and we could've caused or gotten into a serious accident. There were no previous warnings and no Check Engine Light came on prior to it shutting off--I had been having no issues. The car will not turn on and when attempting to, it makes a screeching noise. I had to get it towed to … Look up ODI 11731702 at NHTSA ↗
2026-05	2	None	ODI 11736470 Intermittently I will receive a dashboard message reading “shift to park” after I park the vehicle and do shift to park. This is a known issue with this vehicle across several years identified as “a known issue caused by a faulty switch in the shifter assembly failing to detect when the car is in Park”. GM has identified and found a solution to this problem by replacing the entire shifter assembly at the owners own cost. This malfunction has the potential to cause great harm. Potentially the vehicle could roll if the engine/system does not iden… Look up ODI 11736470 at NHTSA ↗ ODI 11738187 I needed to have my muffler welded in November to pass inspection. I was told I would likely need the entire thing replaced in a year. I now hear another exhaust leak, and I’m preparing for a hefty car travel and have to deal with trying to get it fixed in 10 days time. This is ridiculous on a 5 year old car that I have only had two year. This needs to be a recall, insane to have to pay for a whole replacement. Look up ODI 11738187 at NHTSA ↗
2026-06	5	None	ODI 11742150 Amplifier lost connection, so speakers won’t work, collision warning won’t sound, and turn signal won’t sound. Look up ODI 11742150 at NHTSA ↗ ODI 11742380 While driving on Thursday, June 4, 2026, the vehicle experienced a sudden and complete failure of the electronic braking/power brake assist system. Simultaneously, multiple safety warnings illuminated on the dashboard display, including a persistent service wrench icon, a traction control warning light, and a lane-keep assist indicator light. Due to the loss of brake assistance, the vehicle was unsafe to operate and had to be towed/driven directly to a licensed dealership for emergency diagnosis. The dealership technicians subsequently inspecte… Look up ODI 11742380 at NHTSA ↗ ODI 11742562 Dealership Linwood inspected vehicle and certified power and ground module has internal fault-faulty front camera module. Look up ODI 11742562 at NHTSA ↗
2026-07	11	None	ODI 11748172 Due to the Front view camera module going bad, I have no access my ADAS. Look up ODI 11748172 at NHTSA ↗ ODI 11749121 The shift to park is defective on mine and many other GM vehicles. I had it previously repaired under manufacturer warranty and then again in just over 16,000 miles driven which fell outside of the manufacturer warranty. I had to pay out of pocket for the repairs and GM refused to reimburse me for the repairs. GM has a service bulletin recognizing the defective part and still refused reimbursement. The shift to park causes the vehicle to not recognize the vehicle is in park preventing it from shutting off. This causes the battery to drain … Look up ODI 11749121 at NHTSA ↗ ODI 11749711 car was driving fine, went up a hill then check engine light came on with warning that stated "reduced engine power." drove it approx 8 min to home. parked in garage. Next morning, took to Firestone Complete Autocare as that was the first place available. Just got a call that the whole turbo assembly needs to be replace costing almost $2000 and will be without a car for about a week. 5 year warranty expired 3 months ago and there is less than 47,000 miles on it. It is currently at the shop so I don't have a bill yet, but they told us how … Look up ODI 11749711 at NHTSA ↗
2026-08	2	None	ODI 11754543 My timing belt snapped prematurely, causing a total loss of engine power while driving on the highway, which is a severe safety hazard Look up ODI 11754543 at NHTSA ↗ ODI 11757775 Shifter Look up ODI 11757775 at NHTSA ↗
2026-09 (partial)	3	None	ODI 11761820 Original Owner of 2021 Chevy Trailblazer LT. Purchased new in April 2021. Vehicle has a history of major powertrain issues, starting with Check Engine light during its first year of ownership, culminating in a complete turbocharger replacement in December 2025. This only as a result of my research, after many visits to dealership trying to diagnose the issue. The check engine was consistently illuminated in the vehicle 2021-2025. 9 days ago while traveling the vehicle, experienced sudden oil pressure loss, and stalling risks, displayed a hard … Look up ODI 11761820 at NHTSA ↗ ODI 11762612 Dear Chevy, I am reaching out to you again because I am desperately requesting immediate assistance with my vehicle, which has now become an extremely serious and dangerous safety concern. On Friday, [XXX], I had my vehicle towed to the dealership because of the ongoing mechanical issues I have been experiencing. I was advised that the repairs would cost $877, which included a battery replacement and new sensors. I paid for these repairs and picked up my vehicle on Wednesday, September 2, 2026, believing that the issues had finally been addre… Look up ODI 11762612 at NHTSA ↗ ODI 11764456 2021 Chevy Trailblazer has a shift to park sensor issue. Car is in park and the sensor does not recognize that it is in park and displays a safety message to place car in park and continues to beep. Takes numerous attempts of taking car out of park and back into park to get it to recognize that the shifter is now in park. Has taken up to 15 minutes. Dealership has diagnosed as a known issue with this year and make with a service bulletin issued by GM of 23-NA-119. Has been happening over the last 2 weeks. Look up ODI 11764456 at NHTSA ↗

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

Recent filing spikes
Month	Reports	Previous monthly average	Leading component	Examples
2026-07	11	4.3	Unknown Or Other	ODI 11748172 Due to the Front view camera module going bad, I have no access my ADAS. Look up ODI 11748172 at NHTSA ↗ ODI 11749121 The shift to park is defective on mine and many other GM vehicles. I had it previously repaired under manufacturer warranty and then again in just over 16,000 miles driven which fell outside of the manufacturer warranty. I had to pay out of pocket for the repairs and GM refused to reimburse me for the repairs. GM has a service bulletin recognizing the defective part and still refused reimbursement. The shift to park causes the vehicle to not recognize the vehicle is in park preventing it from shutting off. This causes the battery to drain … Look up ODI 11749121 at NHTSA ↗ ODI 11749711 car was driving fine, went up a hill then check engine light came on with warning that stated "reduced engine power." drove it approx 8 min to home. parked in garage. Next morning, took to Firestone Complete Autocare as that was the first place available. Just got a call that the whole turbo assembly needs to be replace costing almost $2000 and will be without a car for about a week. 5 year warranty expired 3 months ago and there is less than 47,000 miles on it. It is currently at the shop so I don't have a bill yet, but they told us how … Look up ODI 11749711 at NHTSA ↗

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Observation windowFirst model yearSecond model year

2022: 55 complaints · 2023: 51 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2022	14	28	55
2023	21	33	51

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2022	107	0	3
2023	67	0	1

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
Component	Unknown Or Other	Electrical System	Power Train	Engine	Service Brakes	Fuel/Propulsion System	Forward Collision Avoidance: Automatic Emergency Braking	Steering
Unknown Or Other	—	10 ODI 11457652 Started having issues where all the electronics on the car go blank/dead. So far when this has happened it has not caused the car to be inoperable but in the meantime I have found that the car is leaking (seriously leaking) under the entire drivers seat was soaked. I noticed a while back that it smelled like mildew in the car, I had it cleaned and put a damp rid pouch in there, that basically absorbed in 2 days, but never could find the water. This week I found the water...under the drivers seat. This car has been leaking for 2 years! Last … Look up ODI 11457652 at NHTSA ↗ ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11570205 The radio screen is constantly going black or glitching, the music will silence, the back up camera will stop working. Carplay does not connect often, also glitches in and out when driving. There is little to no air or heat coming from the floor panel when feet option is pressed for climate. In order to feel heat or A/C have to be on face option. Look up ODI 11570205 at NHTSA ↗	3 ODI 11513067 When I shift the gear from PARK to DRIVE & step on the GAS, the vehicle hesitates to DRIVE. I have to turn off my vehicle, play with the gear shift, then shift again to get it to move. The other day I put my vehicle in DRIVE and it rolled back and REVERSED. Nobody can figure out what’s wrong with my vehicle. The check engine light comes on then goes off. Nobody can get the problem to duplicate. A ticket to GMC was submitted and from them, my vehicle seems fine on paper. This is a safety hazard. I’ve taken my vehicle to a Chevy dealer and also t… Look up ODI 11513067 at NHTSA ↗ ODI 11645476 Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I… Look up ODI 11645476 at NHTSA ↗ ODI 11667632 The vehicle keeps vibrating binding lurching jumping when driving going in reverse and turning the car in a circle I took it in they replaces they rear end and transfer case on it there was a lot of metal shavings in both no clue or explanation why got the vehicle back over a month later to the same problems as before took it back in they went for a test drive with us and verified its still happening and that day they shrugged shoulders they dont know why or what's happing they supposedly got ahold of trailblazer and they said this is normal fo… Look up ODI 11667632 at NHTSA ↗	1 ODI 11720307 This vehicle was sold as new when this vehicle had a defective Turbo Underboost issue from a ECM Issue previously prior to the 2022 Trailblazer being sold to us. This vehicle has a shift to park issue which sticks when you try to Park the vehicle. Next This vehicle has had 4 prior incidents of attempted repair of this Turbo Underboost and a failure to pass emissions which lead to the engine and transmission failure of this vehicle. I have waited since July 6, 2025 of this vehicle being in the shop no rental no loaner. Now no replacement vehicle… Look up ODI 11720307 at NHTSA ↗	2 ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11720155 Shift to park. Vehicle will not shut off. Also trying to start vehicle having to repeatedly push brakes down hard and push to start before finally starting. I bought this vehicle with 0 miles this has been an on going on and off problem since around 20000 miles have been put on. Look up ODI 11720155 at NHTSA ↗	0	0	0
Electrical System	10 ODI 11457652 Started having issues where all the electronics on the car go blank/dead. So far when this has happened it has not caused the car to be inoperable but in the meantime I have found that the car is leaking (seriously leaking) under the entire drivers seat was soaked. I noticed a while back that it smelled like mildew in the car, I had it cleaned and put a damp rid pouch in there, that basically absorbed in 2 days, but never could find the water. This week I found the water...under the drivers seat. This car has been leaking for 2 years! Last … Look up ODI 11457652 at NHTSA ↗ ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11570205 The radio screen is constantly going black or glitching, the music will silence, the back up camera will stop working. Carplay does not connect often, also glitches in and out when driving. There is little to no air or heat coming from the floor panel when feet option is pressed for climate. In order to feel heat or A/C have to be on face option. Look up ODI 11570205 at NHTSA ↗	—	4 ODI 11623129 On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a … Look up ODI 11623129 at NHTSA ↗ ODI 11681574 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while stopped at stop light, the vehicle shut off with the check engine warning light illuminated. Due to the failure, the vehicle was towed to a dealer and the transmission was repaired. Despite the repair, the vehicle continued to shut off without warning. One day while driving 60 MPH, the vehicle shut off without warning, and the contact was stranded in the middle of the highway. The vehicle failed to restart after several attempts even with assistance from the Highway Pa… Look up ODI 11681574 at NHTSA ↗ ODI 11683489 My vehicle displayed a Shift to Park message even though I was already in Park. I could not turn off the engine, I could not lock my car. I had to go back into Drive and then Park mode and wiggle the shifter multiple times to get it to recognize Park and turn off the car. This is now happening almost every time I drive the car. I did an internet search to see how to rectify the problem only to find that this exact issue has plagued GM vehicles for a decade and they still have not chosen to rectify the faulty part. There have been multiple rec… Look up ODI 11683489 at NHTSA ↗	6 ODI 11432454 · 5,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the… Look up ODI 11432454 at NHTSA ↗ ODI 11623129 On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a … Look up ODI 11623129 at NHTSA ↗ ODI 11652696 My vehicle keeps flashing: "Shift to park" when I am in park and then my car is unable to shut off the battery even though I'm in park and our of the vehicle Look up ODI 11652696 at NHTSA ↗	8 ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗	2 ODI 11613947 05/29/24 I took this vehicle to Cronic Chevrolet in Griffin, Ga due to check engine light being on. Code detected purge pump it was still under warranty at that time only had 43,906 miles on had to get the purge pump replaced. Several weeks after getting it back I kept getting a shift to park message come up when trying to put it in park then started having trouble getting it to go into drive. I have had so many close calls from people almost bashing into me because my car will not go into drive and you constantly have to switch in and out of g… Look up ODI 11613947 at NHTSA ↗ ODI 11676063 Vehicle Diagnostic Summary – Trouble Codes Explained 1. P0562 – System Voltage Low The vehicle’s electrical system is running at low voltage. This could be due to a weak battery, a failing alternator, or poor electrical connections. It may cause various electronic issues and unexpected shutdowns if not fixed. 2. P1005 – Fuel Level Sensor Control Module: Too Many Resets The fuel level sensor module has been reset too many times, likely due to electrical glitches. This may cause the fuel gauge to be inaccurate or unstable. 3. P14C0 / P14CD – F… Look up ODI 11676063 at NHTSA ↗	3 ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗ ODI 11742380 While driving on Thursday, June 4, 2026, the vehicle experienced a sudden and complete failure of the electronic braking/power brake assist system. Simultaneously, multiple safety warnings illuminated on the dashboard display, including a persistent service wrench icon, a traction control warning light, and a lane-keep assist indicator light. Due to the loss of brake assistance, the vehicle was unsafe to operate and had to be towed/driven directly to a licensed dealership for emergency diagnosis. The dealership technicians subsequently inspecte… Look up ODI 11742380 at NHTSA ↗	1 ODI 11685359 While driving, a service warning came on that reads "Service Power Steering" - when that came on, the brakes ceased to work properly and required significant force, causing a big delay in braking. It is not safe to drive due to the limited braking. This mirrors the recall situation for other 2021 Trailblazer models with the interrupted brake sensor. Look up ODI 11685359 at NHTSA ↗
Power Train	3 ODI 11513067 When I shift the gear from PARK to DRIVE & step on the GAS, the vehicle hesitates to DRIVE. I have to turn off my vehicle, play with the gear shift, then shift again to get it to move. The other day I put my vehicle in DRIVE and it rolled back and REVERSED. Nobody can figure out what’s wrong with my vehicle. The check engine light comes on then goes off. Nobody can get the problem to duplicate. A ticket to GMC was submitted and from them, my vehicle seems fine on paper. This is a safety hazard. I’ve taken my vehicle to a Chevy dealer and also t… Look up ODI 11513067 at NHTSA ↗ ODI 11645476 Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I… Look up ODI 11645476 at NHTSA ↗ ODI 11667632 The vehicle keeps vibrating binding lurching jumping when driving going in reverse and turning the car in a circle I took it in they replaces they rear end and transfer case on it there was a lot of metal shavings in both no clue or explanation why got the vehicle back over a month later to the same problems as before took it back in they went for a test drive with us and verified its still happening and that day they shrugged shoulders they dont know why or what's happing they supposedly got ahold of trailblazer and they said this is normal fo… Look up ODI 11667632 at NHTSA ↗	4 ODI 11623129 On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a … Look up ODI 11623129 at NHTSA ↗ ODI 11681574 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while stopped at stop light, the vehicle shut off with the check engine warning light illuminated. Due to the failure, the vehicle was towed to a dealer and the transmission was repaired. Despite the repair, the vehicle continued to shut off without warning. One day while driving 60 MPH, the vehicle shut off without warning, and the contact was stranded in the middle of the highway. The vehicle failed to restart after several attempts even with assistance from the Highway Pa… Look up ODI 11681574 at NHTSA ↗ ODI 11683489 My vehicle displayed a Shift to Park message even though I was already in Park. I could not turn off the engine, I could not lock my car. I had to go back into Drive and then Park mode and wiggle the shifter multiple times to get it to recognize Park and turn off the car. This is now happening almost every time I drive the car. I did an internet search to see how to rectify the problem only to find that this exact issue has plagued GM vehicles for a decade and they still have not chosen to rectify the faulty part. There have been multiple rec… Look up ODI 11683489 at NHTSA ↗	—	8 ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗ ODI 11611300 The pick up on the vehicle is losing power it seems not letting the RPM's Go up or drop down before taking off. This cause the vehicle to move slower than normal Code keeps popping up losing power engine while drive and engine light comes on this goes on for about a week or so than stops and engine light disappear and reappears again. Look up ODI 11611300 at NHTSA ↗ ODI 11612155 My 2021 Chevy Trailblazer has an error reading “shift to Park” that randomly appeared 2 weeks ago, now is doing it almost every time I stop my car, error has also cause my battery to die. When error is showing my car will not shut off. Took to a Chevy dealer and recommended changing the gear shift assembly, can’t guarantee it will fix the problem. They have ordered the part but $450 plus parts and labor for not a guarantee is concerning. I also travel for work and have been left stranded because of this issue. Look up ODI 11612155 at NHTSA ↗	1 ODI 11615442 What component or system failed or malfunctioned, and is it available for inspection upon request? - The shift lever/gear control malfunctions when trying to put the vehicle in park. The vehicle once the lever is in park on the dashboard it will say !Place vehicle in park. When it is in park you can't open the doors or turn off the vehicle. You can try to jiggle the shift lever but it doesn't move out of park. How was your safety or the safety of others put at risk? - Unable to get out of the vehicle, the system locks the doors. Has the probl… Look up ODI 11615442 at NHTSA ↗	3 ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗ ODI 11611300 The pick up on the vehicle is losing power it seems not letting the RPM's Go up or drop down before taking off. This cause the vehicle to move slower than normal Code keeps popping up losing power engine while drive and engine light comes on this goes on for about a week or so than stops and engine light disappear and reappears again. Look up ODI 11611300 at NHTSA ↗ ODI 11761820 Original Owner of 2021 Chevy Trailblazer LT. Purchased new in April 2021. Vehicle has a history of major powertrain issues, starting with Check Engine light during its first year of ownership, culminating in a complete turbocharger replacement in December 2025. This only as a result of my research, after many visits to dealership trying to diagnose the issue. The check engine was consistently illuminated in the vehicle 2021-2025. 9 days ago while traveling the vehicle, experienced sudden oil pressure loss, and stalling risks, displayed a hard … Look up ODI 11761820 at NHTSA ↗	0	0
Engine	1 ODI 11720307 This vehicle was sold as new when this vehicle had a defective Turbo Underboost issue from a ECM Issue previously prior to the 2022 Trailblazer being sold to us. This vehicle has a shift to park issue which sticks when you try to Park the vehicle. Next This vehicle has had 4 prior incidents of attempted repair of this Turbo Underboost and a failure to pass emissions which lead to the engine and transmission failure of this vehicle. I have waited since July 6, 2025 of this vehicle being in the shop no rental no loaner. Now no replacement vehicle… Look up ODI 11720307 at NHTSA ↗	6 ODI 11432454 · 5,000 mi The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the… Look up ODI 11432454 at NHTSA ↗ ODI 11623129 On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a … Look up ODI 11623129 at NHTSA ↗ ODI 11652696 My vehicle keeps flashing: "Shift to park" when I am in park and then my car is unable to shut off the battery even though I'm in park and our of the vehicle Look up ODI 11652696 at NHTSA ↗	8 ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗ ODI 11611300 The pick up on the vehicle is losing power it seems not letting the RPM's Go up or drop down before taking off. This cause the vehicle to move slower than normal Code keeps popping up losing power engine while drive and engine light comes on this goes on for about a week or so than stops and engine light disappear and reappears again. Look up ODI 11611300 at NHTSA ↗ ODI 11612155 My 2021 Chevy Trailblazer has an error reading “shift to Park” that randomly appeared 2 weeks ago, now is doing it almost every time I stop my car, error has also cause my battery to die. When error is showing my car will not shut off. Took to a Chevy dealer and recommended changing the gear shift assembly, can’t guarantee it will fix the problem. They have ordered the part but $450 plus parts and labor for not a guarantee is concerning. I also travel for work and have been left stranded because of this issue. Look up ODI 11612155 at NHTSA ↗	—	2 ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11726811 When stopped at a red light & the light turns green & I accelerate, the vehicle does not move. It makes a loud noise and jumps. This happens way too many times. There’s also an issue with the brakes, when you press on them, you can hear something grinding, which should not be happening because I bought the car brand new. Also the brakes have always been super squeaky, which is very frustrating because they should not be with a brand new car once again. The engine light goes on and off randomly and doesn’t say anything. Look up ODI 11726811 at NHTSA ↗	8 ODI 11449335 I had a smell of gasoline inside and under hood of 2021 Trailblazer LT 1.3l. Took to Chevrolet dealer.Confirmed gas odor. Gas was leaking from fuel rail.Sevice manager said it was pouring out. Found out GM has Service bulliten for this PIP5765 that covers both Chevy Trailblazer with 1.3l and Buick Encore GX with 1.3l motors. This has been a scary situation considering gas fumes could have caught fire. Look up ODI 11449335 at NHTSA ↗ ODI 11579154 CEL came on at 77,000 miles P1467 Is this covered? Look up ODI 11579154 at NHTSA ↗ ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗	0	2 ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11690808 Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say i… Look up ODI 11690808 at NHTSA ↗
Service Brakes	2 ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11720155 Shift to park. Vehicle will not shut off. Also trying to start vehicle having to repeatedly push brakes down hard and push to start before finally starting. I bought this vehicle with 0 miles this has been an on going on and off problem since around 20000 miles have been put on. Look up ODI 11720155 at NHTSA ↗	8 ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11497659 Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive. Look up ODI 11497659 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗	1 ODI 11615442 What component or system failed or malfunctioned, and is it available for inspection upon request? - The shift lever/gear control malfunctions when trying to put the vehicle in park. The vehicle once the lever is in park on the dashboard it will say !Place vehicle in park. When it is in park you can't open the doors or turn off the vehicle. You can try to jiggle the shift lever but it doesn't move out of park. How was your safety or the safety of others put at risk? - Unable to get out of the vehicle, the system locks the doors. Has the probl… Look up ODI 11615442 at NHTSA ↗	2 ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11726811 When stopped at a red light & the light turns green & I accelerate, the vehicle does not move. It makes a loud noise and jumps. This happens way too many times. There’s also an issue with the brakes, when you press on them, you can hear something grinding, which should not be happening because I bought the car brand new. Also the brakes have always been super squeaky, which is very frustrating because they should not be with a brand new car once again. The engine light goes on and off randomly and doesn’t say anything. Look up ODI 11726811 at NHTSA ↗	—	2 ODI 11613947 05/29/24 I took this vehicle to Cronic Chevrolet in Griffin, Ga due to check engine light being on. Code detected purge pump it was still under warranty at that time only had 43,906 miles on had to get the purge pump replaced. Several weeks after getting it back I kept getting a shift to park message come up when trying to put it in park then started having trouble getting it to go into drive. I have had so many close calls from people almost bashing into me because my car will not go into drive and you constantly have to switch in and out of g… Look up ODI 11613947 at NHTSA ↗ ODI 11633315 I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe. Look up ODI 11633315 at NHTSA ↗	5 ODI 11394975 · 7,300 mi THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO. Look up ODI 11394975 at NHTSA ↗ ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗	4 ODI 11415441 · 160 mi I WAS DRIVING MY BRAND NEW 2021 TRAILBLAZER (ONLY 160 MILES) AND STEPPED ON THE BRAKE TO STOP AT THE END OF A STREET. SUDDENLY, I GOT ALERTS THAT MY BRAKE SYSTEM HAD FAILED AND RIGHT AFTER THAT, ANOTHER ONE, SAYING THAT THE POWER STEERING NEEDED TO BE SERVICED. AT THAT POINT, IT REQUIRED MUCH MORE PRESSURE ON THE BRAKE TO STOP, AND THE BRAKES DIDN'T SEEM VERY RESPONSIVE. LATER I SHUT OFF THE ENGINE, AND WHEN I STARTED IT AGAIN, THE CHECK ENGINE LIGHT WAS STILL ON, BUT I THINK THE BRAKES WERE WORKING AGAIN. I'M NOT SURE BECAUSE I DIDN'T WANT TO … Look up ODI 11415441 at NHTSA ↗ ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11500332 While traveling down the road at approximatly 35-40 mph with my two minor children, the steering was not responding properly and the car kept attempting to veer to the right. I let off the gas to slow down since the brakes were also not seeming to respond well. Upon attempting to brake and execute a left hand turn, the car would not turn at all despite the steering wheel being as turned as far to the left as possible, the lights began flashing on the dashboard for "PowerSteering" ESC warning. We ended up going through the intersection withou… Look up ODI 11500332 at NHTSA ↗
Fuel/Propulsion System	0	2 ODI 11613947 05/29/24 I took this vehicle to Cronic Chevrolet in Griffin, Ga due to check engine light being on. Code detected purge pump it was still under warranty at that time only had 43,906 miles on had to get the purge pump replaced. Several weeks after getting it back I kept getting a shift to park message come up when trying to put it in park then started having trouble getting it to go into drive. I have had so many close calls from people almost bashing into me because my car will not go into drive and you constantly have to switch in and out of g… Look up ODI 11613947 at NHTSA ↗ ODI 11676063 Vehicle Diagnostic Summary – Trouble Codes Explained 1. P0562 – System Voltage Low The vehicle’s electrical system is running at low voltage. This could be due to a weak battery, a failing alternator, or poor electrical connections. It may cause various electronic issues and unexpected shutdowns if not fixed. 2. P1005 – Fuel Level Sensor Control Module: Too Many Resets The fuel level sensor module has been reset too many times, likely due to electrical glitches. This may cause the fuel gauge to be inaccurate or unstable. 3. P14C0 / P14CD – F… Look up ODI 11676063 at NHTSA ↗	3 ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗ ODI 11611300 The pick up on the vehicle is losing power it seems not letting the RPM's Go up or drop down before taking off. This cause the vehicle to move slower than normal Code keeps popping up losing power engine while drive and engine light comes on this goes on for about a week or so than stops and engine light disappear and reappears again. Look up ODI 11611300 at NHTSA ↗ ODI 11761820 Original Owner of 2021 Chevy Trailblazer LT. Purchased new in April 2021. Vehicle has a history of major powertrain issues, starting with Check Engine light during its first year of ownership, culminating in a complete turbocharger replacement in December 2025. This only as a result of my research, after many visits to dealership trying to diagnose the issue. The check engine was consistently illuminated in the vehicle 2021-2025. 9 days ago while traveling the vehicle, experienced sudden oil pressure loss, and stalling risks, displayed a hard … Look up ODI 11761820 at NHTSA ↗	8 ODI 11449335 I had a smell of gasoline inside and under hood of 2021 Trailblazer LT 1.3l. Took to Chevrolet dealer.Confirmed gas odor. Gas was leaking from fuel rail.Sevice manager said it was pouring out. Found out GM has Service bulliten for this PIP5765 that covers both Chevy Trailblazer with 1.3l and Buick Encore GX with 1.3l motors. This has been a scary situation considering gas fumes could have caught fire. Look up ODI 11449335 at NHTSA ↗ ODI 11579154 CEL came on at 77,000 miles P1467 Is this covered? Look up ODI 11579154 at NHTSA ↗ ODI 11600291 I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Look up ODI 11600291 at NHTSA ↗	2 ODI 11613947 05/29/24 I took this vehicle to Cronic Chevrolet in Griffin, Ga due to check engine light being on. Code detected purge pump it was still under warranty at that time only had 43,906 miles on had to get the purge pump replaced. Several weeks after getting it back I kept getting a shift to park message come up when trying to put it in park then started having trouble getting it to go into drive. I have had so many close calls from people almost bashing into me because my car will not go into drive and you constantly have to switch in and out of g… Look up ODI 11613947 at NHTSA ↗ ODI 11633315 I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe. Look up ODI 11633315 at NHTSA ↗	—	0	0
Forward Collision Avoidance: Automatic Emergency Braking	0	3 ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗ ODI 11742380 While driving on Thursday, June 4, 2026, the vehicle experienced a sudden and complete failure of the electronic braking/power brake assist system. Simultaneously, multiple safety warnings illuminated on the dashboard display, including a persistent service wrench icon, a traction control warning light, and a lane-keep assist indicator light. Due to the loss of brake assistance, the vehicle was unsafe to operate and had to be towed/driven directly to a licensed dealership for emergency diagnosis. The dealership technicians subsequently inspecte… Look up ODI 11742380 at NHTSA ↗	0	0	5 ODI 11394975 · 7,300 mi THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO. Look up ODI 11394975 at NHTSA ↗ ODI 11431843 Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car. Look up ODI 11431843 at NHTSA ↗ ODI 11544617 The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash Look up ODI 11544617 at NHTSA ↗	0	—	0
Steering	0	1 ODI 11685359 While driving, a service warning came on that reads "Service Power Steering" - when that came on, the brakes ceased to work properly and required significant force, causing a big delay in braking. It is not safe to drive due to the limited braking. This mirrors the recall situation for other 2021 Trailblazer models with the interrupted brake sensor. Look up ODI 11685359 at NHTSA ↗	0	2 ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11690808 Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say i… Look up ODI 11690808 at NHTSA ↗	4 ODI 11415441 · 160 mi I WAS DRIVING MY BRAND NEW 2021 TRAILBLAZER (ONLY 160 MILES) AND STEPPED ON THE BRAKE TO STOP AT THE END OF A STREET. SUDDENLY, I GOT ALERTS THAT MY BRAKE SYSTEM HAD FAILED AND RIGHT AFTER THAT, ANOTHER ONE, SAYING THAT THE POWER STEERING NEEDED TO BE SERVICED. AT THAT POINT, IT REQUIRED MUCH MORE PRESSURE ON THE BRAKE TO STOP, AND THE BRAKES DIDN'T SEEM VERY RESPONSIVE. LATER I SHUT OFF THE ENGINE, AND WHEN I STARTED IT AGAIN, THE CHECK ENGINE LIGHT WAS STILL ON, BUT I THINK THE BRAKES WERE WORKING AGAIN. I'M NOT SURE BECAUSE I DIDN'T WANT TO … Look up ODI 11415441 at NHTSA ↗ ODI 11481702 I have had the 2021 Chevy Trailblazer since May 2021, it has been 15 months, not even a year and a half off the lot and i have had wayyyy too many problems. I have has service the stabilitrak stability control system, service the antilock breaking system multiple times within the first 8-10 months. I had to get a part replaced due to that. The dealership had my vehicle literally for a month after i bought it, had an open tak report through Gm due to my engine light coming on. Gm did not know why it was happening. Had 2 service engine and transm… Look up ODI 11481702 at NHTSA ↗ ODI 11500332 While traveling down the road at approximatly 35-40 mph with my two minor children, the steering was not responding properly and the car kept attempting to veer to the right. I let off the gas to slow down since the brakes were also not seeming to respond well. Upon attempting to brake and execute a left hand turn, the car would not turn at all despite the steering wheel being as turned as far to the left as possible, the lights began flashing on the dashboard for "PowerSteering" ESC warning. We ended up going through the intersection withou… Look up ODI 11500332 at NHTSA ↗	0	0	—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

Search patterns

7 patterns with matching reports.

Warning lights and dashboard alerts

36 mentions · 18.7% of complaints

Median mileage: 42,000 mi (13 usable records).

ODI 11415441 · 160 mi

I WAS DRIVING MY BRAND NEW 2021 TRAILBLAZER (ONLY 160 MILES) AND STEPPED ON THE BRAKE TO STOP AT THE END OF A STREET. SUDDENLY, I GOT ALERTS THAT MY BRAKE SYSTEM HAD FAILED AND RIGHT AFTER THAT, ANOTHER ONE, SAYING THAT THE POWER STEERING NEEDED TO BE SERVICED. AT THAT POINT, IT REQUIRED MUCH MORE PRESSURE ON THE BRAKE TO STOP, AND THE BRAKES DIDN'T SEEM VERY RESPONSIVE. LATER I SHUT OFF THE ENGINE, AND WHEN I STARTED IT AGAIN, THE CHECK ENGINE LIGHT WAS STILL ON, BUT I THINK THE BRAKES WERE WORKING AGAIN. I'M NOT SURE BECAUSE I DIDN'T WANT TO …

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ODI 11425117 · 2,100 mi

The contact owns a 2021 Chevrolet Trailblazer equipped with Continental tires, Tire Line: Pro Contact, Tire Size: 225/60/R17, DOT Number: 16YOF98YW. The contact stated that while his son was driving at an undisclosed speed, the tire pressure warning light was illuminated then the front passenger side tire had a blowout. The contact's son pulled over on the side of the road and contacted a tow truck company for assistance. The tow truck driver replaced the tire with the spare tire. The dealer was made aware of the failure but informed the contac…

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ODI 11432454 · 5,000 mi

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the…

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Matching rule

\b(warning light\w*|check engine|dashboard warning\w*|malfunction indicator)\b

Stalling or loss of power

10 mentions · 5.2% of complaints

Median mileage: 75,000 mi (1 usable records).

ODI 11659117

Upon starting vehicle it would idle for 30secs to 1 minute before shutting completely down, then would prompt to engage brake and push start/stop button to turn back on. Two different times while driving at 60+ mph the vehicle completely stalled losing power steering and brakes. Both times when the vehicle shut down it would say to push start/stop button and then place vehicle in park, engage brake to restart. When the vehicle stalled I was getting onto a highway and was about 2 seconds from being hit from behind by a semi while I was at almost…

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ODI 11676063

Vehicle Diagnostic Summary – Trouble Codes Explained 1. P0562 – System Voltage Low The vehicle’s electrical system is running at low voltage. This could be due to a weak battery, a failing alternator, or poor electrical connections. It may cause various electronic issues and unexpected shutdowns if not fixed. 2. P1005 – Fuel Level Sensor Control Module: Too Many Resets The fuel level sensor module has been reset too many times, likely due to electrical glitches. This may cause the fuel gauge to be inaccurate or unstable. 3. P14C0 / P14CD – F…

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ODI 11700638

The issue is the yellow engine light lit up on the dash of my 2021 Trailblazer in late August of 2025. At the same time, the cluster displayed the message "Engine Power is Reduced". Over the next few weeks my car engine would randomly stall out while I was driving! As you can imagine, this is a very unsafe driving condition. My car stalls and I'm in traffic and have no ability at all to control the vehicle. This happened at least 4 times to me. When I checked the On Board Diagnostic codes on my vehicle the system reported back U060F (Mass…

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Matching rule

\b(stall\w*|loss of power|lost power|engine shut\w* off)\b

Brake response concerns

8 mentions · 4.1% of complaints

Median mileage: 41,150 mi (4 usable records).

ODI 11394975 · 7,300 mi

THE BRAKES INCLUDING BRAKE ASSIST STOPPED WORKING. PRESSING THE BRAKE PEDAL DID LITTLE TO STOP THE VEHICLE. THERE WAS RECALL FOR THIS SAME ISSUE THAT WAS PREFORMED BY THE DEALERSHIP 3 WEEKS AGO.

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ODI 11440926 · 1,574 mi

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact had to restart the vehicle to correct the failure. The failure was intermittent. The vehicle was taken to the dealer however, the dealer could not duplicate the failure. The vehicle was taken to another dealer, Frontier Mo…

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ODI 11456786

The ABS and stability control systems crash without warning. Randomly on a trip the check engine light randomly comes on without warning and immediately my break system stops being effective. I have to put full force on the brake pedal to start breaking the vehicle and coming to a stop becomes difficult. This puts my life as well as others at risk as I would not be able to break on time. The problem immediately goes away after turning the car off and turning it back on leading me to believe it’s simply a computer problem. The service provider …

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Matching rule

Steering assistance concerns

8 mentions · 4.1% of complaints

Median mileage: 867 mi (2 usable records).

ODI 11415441 · 160 mi

Look up ODI 11415441 at NHTSA ↗

ODI 11440926 · 1,574 mi

Look up ODI 11440926 at NHTSA ↗

ODI 11500332

While traveling down the road at approximatly 35-40 mph with my two minor children, the steering was not responding properly and the car kept attempting to veer to the right. I let off the gas to slow down since the brakes were also not seeming to respond well. Upon attempting to brake and execute a left hand turn, the car would not turn at all despite the steering wheel being as turned as far to the left as possible, the lights began flashing on the dashboard for "PowerSteering" ESC warning. We ended up going through the intersection withou…

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Matching rule

\b(power steer\w*|steering assist\w*|steering lock\w*|steering wheel lock\w*)\b

Fuel smell or leak mentions

4 mentions · 2.1% of complaints

Median mileage: 21,000 mi (1 usable records).

ODI 11463924

Second time in dealership shop to get gas smell coming from engine. Vehicle still under warranty. Afraid of the vehicle catching fire on me. Took it into another repair shop and 2 technicians notice the strong gas odor and was afraid of working on it.

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ODI 11516298 · 21,000 mi

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, an abnormal fuel odor was coming from the vehicle, without warning. While in traffic, the contact started feeling dizzy and pulled over. The contact’s son who was following her vehicle, also stated that he could smell fuel upon approaching the vehicle. The following day, the vehicle was taken to a dealer where the mechanic discovered a crack in the fuel rail. Upon investigation, the contact discovered Service Bulletin: PIP5765, which she link…

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ODI 11550470

Very strong gas smells coming from under the hood. After driving a few miles, fumes enter the passenger compartment. Had to stop parking it in our garage for fear of a fire before I could get it into the dealer. I've been told it's a fuel leak associated with the fuel rail system. I'm 20 days past my warranty and only at 29,000 miles. It's a nearly $2000 fix. GM was aware of the problem in 2021 as there is a service bulletin for this item. I should have been notified in 2021 that there was a possible problem which could lead to a fire or…

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Matching rule

\b(fuel leak\w*|gas leak\w*|gas(?:oline)? smell|smell\w* (?:of )?(?:fuel|gas))\b

Battery drain and no-start mentions

2 mentions · 1.0% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11632626

I have had this vehicle at the garage for the 4th time in 2 months for the same issues. It would not start. the fuse box keeps blowing. The starter was replaced and the Alternator was replaced and the fuse box 3 times so far. It is in the auto repair shop now for the same issues. the mechanic has done an inspection and diagnostics and cant find what is wrong. There were no warning lights to warn me of anything. I have spent 4500+ so far in repairs and more to come.

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ODI 11733143

When I put my car in Park, my car fails to detect it is in Park, leading to a persistent error message that tells me “Shift to Park”, inability to turn off the engine, and battery drain. I’ve had the car since Oct. 2020 and this car has been doing this since at least Oct. 2021.

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Matching rule

Hard or delayed shifting

2 mentions · 1.0% of complaints

Median mileage: 75,000 mi (1 usable records).

ODI 11667632

The vehicle keeps vibrating binding lurching jumping when driving going in reverse and turning the car in a circle I took it in they replaces they rear end and transfer case on it there was a lot of metal shavings in both no clue or explanation why got the vehicle back over a month later to the same problems as before took it back in they went for a test drive with us and verified its still happening and that day they shrugged shoulders they dont know why or what's happing they supposedly got ahold of trailblazer and they said this is normal fo…

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ODI 11734601 · 75,000 mi

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 40 MPH, the vehicle stalled. During the failure, several unknown warning lights illuminated, and the vehicle was jump-started. The Auto START/STOP function was disabled for the vehicle to operate properly. The vehicle was inspected by an independent mechanic; however, the failure could not be duplicated. The contact replaced the battery, and the failure was almost resolved. Additionally, while depressing the brake pedal, the vehicle failed to st…

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Matching rule