| Service Brakes | 111.1%ODI 11455127The service brakes lights has come on a d disabled my brake controller. This is a safety issue while towing and completely unacceptable. Look up ODI 11455127 at NHTSA ↗ | 00.0%No examples available for this selection. | 114.3%ODI 11399287 · 68,000 miTL* THE CONTACT OWNS A 2014 GMC SIERRA 3500. THE CONTACT STATED WHILE DRIVING AT 35 MPH, THE BRAKES FAILED CAUSING THE FRONT DRIVER SIDE OF THE VEHICLE TO CRASH INTO A SIGN. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE BACK HOME. THE CONTACT SUFFERED SOME LEG SORENESS. A POLICE REPORT WAS FILED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO RYAN AUTOMOTIVE GROUP (1101 OLIVER RD, MONROE, LA 71201) WHERE THE BODY DAMAGE WAS REPAIRED HOWEVER, THE FAILURE CAUSE WAS NOT DIAGNOSED. THE CONTACT THEN RECEIVED RECALL NOTIFIC… Look up ODI 11399287 at NHTSA ↗ | 39.7%ODI 10991153 · 50,000 miTHIS VEHICLE HAS HAD NUMEROUS ELECTRICAL ISSUE FROM THE FIRST FEW MONTHS OF OWNERSHIP. THE TRAILER BRAKE SYSTEM FAILED AND WAS REPLACED ON OCTOBER 2014. THE VEHICLE HAS HAD MANY RECALLS THAT HAVE BEEN CORRECTED BY OWNER AND SERVICE PROVIDER. THE SECOND SUMMER OF OWNERSHIP THE VEHICLE HAD RADIATOR ISSUES, AND MOST RECENTLY ELECTRICAL ISSUES AGAIN AND TRANSMISSION ISSUES. WHILE DRIVING THE VEHICLE ELECTRICAL DASHBOARD GOES INTO A FLICKER AND SHUTS DOWN. GMC WAS ABLE TO FIX THIS ISSUE AT THE OWNERS COST WITH THE VEHICLE BEING OUT OF SERVICE FOR 3 … Look up ODI 10991153 at NHTSA ↗ | 631.6%ODI 10948966 · 16,000 mi-ALL STARTED WITH LOUD POP, METAL FAILURE SOUND. -AT A STOP, WITH BRAKES APPLIED, THE POWER STEERING TURNS THE WHEEL TO THE RIGHT. I HAVE TO PULL TO THE LEFT TO KEEP THE WHEEL CENTERED. (NOT MOVING) THIS PRESSURE ISSUE WILL FINALLY STOP AND THE WHEEL WILL CENTER ON IT'S OWN. -STEERING HAS SLOP, FEELS LOOSE, DEAD CENTER -WHILE AT SPEED APPLYING THE BRAKES THE STEERING WHEEL WAS TORN FROM MY HAND 3 TIMES. THE POWER STEERING CAUSES TRUCK TO CHANGE DIRECTIONS WHEN BRAKING. 99% OF THE TIME THE TRUCK TURNS RIGHT. THE HYROBOOST SYSTEM IS TURNI… Look up ODI 10948966 at NHTSA ↗ | 538.5%ODI 11132650 · 17,000 miWHILE DRIVING DOWN A MOUNTAIN ROAD WITH A 5TH WHEEL ATTACHED IT APPEARED THAT THE REAR BRAKES ON THE DRIVERS SIDE WERE SMOKING, I PULLED OVER TO ALLOW IT TO COOL. WE FOUND A GMC DEALERSHIP AND PROCEEDED THERE VERY SLOWLY STOPPING A NUMBER OF TIMES TO ALLOW THE BRAKES TO COOL DOWN. 2 MILES SHORT OF GMC, THERE WAS A LOUD POP AND A TIRE HAD BLOWN. WE PULLED OVER AND WHILE CALLING ROADSIDE ASSISTANCE NOTICED FIRE UNDER THE TRUCK. WE PUT IT OUT WITH A FIRE EXTINGUISHER BEFORE THE FIRE DEPARTMENT ARRIVED. WE WERE TOWED TO THE DEALERSHIP. THE BR… Look up ODI 11132650 at NHTSA ↗ | 642.9%ODI 11278880 · 16,068 miTL* THE CONTACT OWNS A 2018 GMC SIERRA 3500. WHILE DRIVING APPROXIMATELY 60 MPH AND HAULING A TRAILER, THE ABS, SERVICE TRAILER BRAKE, SERVICE POWER STEERING, AND SERVICE STABILITRAK WARNING INDICATORS ILLUMINATED. ALSO, THE VEHICLE LOST BRAKING FUNCTIONALITY. THE CONTACT ALSO STATED THAT THE FAILURE OCCURRED WHILE NOT TOWING A TRAILER. THE VEHICLE WAS TAKEN TO BUSTER MILES CHEVROLET (1884 ALMON ST, HEFLIN, AL 36264, [phone removed]) TO BE DIAGNOSED, BUT THE MECHANIC WAS UNABLE TO RETRIEVE A FAULT CODE. THE CONTACT WAS INFORMED THAT THE FAILURE… Look up ODI 11278880 at NHTSA ↗ | 430.8%ODI 11390458 · 9,470 miDRIVING TO WORK. POWER STEERING WENT OUT AND BRAKING SYSTEM SEEM TO BE INEFFECTIVE. INSTRUMENT PANEL SERVICE LIGHT CAME ON WITH THE BATTERY INDICATOR DISPLAYING "BATTERY CHARGING SYSTEM" FAULT. Look up ODI 11390458 at NHTSA ↗ | 713.7%ODI 11418543The computer malfunctions. It is available for inspection. The computer lights up and causes failure in the trailer brakes. Glenn Polk the dealership in Sanger Texas has been working on a fix but has yet to come up with one. I have spoken with General Motors Representatives several time trying to resolve the problem without result. I also emailed the CEO last Friday and have heard nothing. There were no warning lights until seconds before failure. Look up ODI 11418543 at NHTSA ↗ | 525.0%ODI 11420443Trailer brake wiring connection continually disconnectsthen reconnects some time later. Some periods of up to 10 minutes without having trailer braking power. Major safety issue when toeing fifth wheel trailer. We lost brakes going down steep grades. GMC is aware of issue, but has not provided a solution. Vehicle has been yo service shop with no resolution. Case has been opened with GMC. Look up ODI 11420443 at NHTSA ↗ | 39.7%ODI 11602043Encountering trailer brake issue where the brakes on our 5th wheel do not activate via the GMC Trailer Brake control module. Have just had it replaced and still experiencing the same issue where it posts an alert on the screen multiple times and does not activate brakes on trailer. This is a widely known issue with GMC trucks and the trailer brake that has been outstanding for over 3 years now and is a safety issue as there doesn't appear to be a fix from any dealerships or GMC. GMC has not taking adequate accountability for this issue. I'm loo… Look up ODI 11602043 at NHTSA ↗ | 13.6%ODI 11570305CRITICAL PART FAILURE - The master cylinder attached to the brake pad is leaking at the seal where the piston is depressed into the cylinder. It's leaking brake fluid onto the driver brake assembly and some sort of cable. While this is repairable under warranty, this should NEVER ever happen on a vehicle. Arguably, the main part on the most critical system on the car - the brakes. Please investigate whether GM should be responsible for replacing this part on any affected vehicle for the life of the vehicle Thank you for all you do to keep us s… Look up ODI 11570305 at NHTSA ↗ | 918.4%ODI 11589523The in cab brake controller does not work with electric over hydraulic trailer brakes. In my research to diagnose and fix the problem I find out GMC has known about this for years and has done nothing to correct. I pulled code C1114 and GMC issued a bulletin for part number (K58-036-00) which I purchased and still did not correct this issue. In short there are many 3500 trucks out there running with no trailer brakes. Here is the worst of this problem. If brakes are tested at a stop they appear to work perfectly however once driving this is wh… Look up ODI 11589523 at NHTSA ↗ | 425.0%ODI 11668227While towing my fifth wheel trailer, the truck intermittently disconnects the trailer brakes while in motion. This results in a sudden loss of roughly 75% of my braking capability, creating an extremely dangerous situation. I have a professional driving background, which has helped me avoid an accident so far, but this issue could easily result in a collision, especially under emergency braking or downhill conditions Service Attempt: On June 17, 2025, I brought the vehicle to Madras Chevrolet in Oregon. The dealership acknowledged the issue bu… Look up ODI 11668227 at NHTSA ↗ | 00.0%No examples available for this selection. |
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| Power Train | 333.3%ODI 10531497 · 16,400 miWHILE PULLING MY FIFTH WHEEL TRAILER 12500# AT HIGHWAY SPEED 65 MPH PULLING A GRADE THE CHECK ENGINE LIGHT CAME ON AND THE REDUCED ENGINE POWER MESSAGE APPEARED ON THE DASH. THIS REDUCED AND LIMITED THE SPEED TO 50 MPH AND STEPS THE TRUCK DOWN FROM THERE UNTIL YOU CAN ONLY DO 20 MPH ON THE INTERSTATE. THIS ISSUE HAS HAPPENED THREE TIMES IN THREE MONTHS. *TR Look up ODI 10531497 at NHTSA ↗ | 214.3%ODI 11445054I was driving down the highway at 75 MPH when the Transmission Control Module overheat and put my truck into third gear causing the truck to speed unsafe. Look up ODI 11445054 at NHTSA ↗ | 114.3%ODI 11495337Transmission Control Module TCM failed while driving down the freeway I84 in Boise Idaho. AC Delco part number 24256861. This caused the truck to go into limp mode when at highway speed. While in limp mode the truck would not respond to throttle commands. Truck slowed to 20mph causing a disruption in traffic flow and making it very difficult to get off the freeway, dodging traffic. The TCM failure has been confirmed through a local GMC dealer (Dennis Dillon in Boise Idaho). The Manufacture (General Motors) has discontinued manufacturing this… Look up ODI 11495337 at NHTSA ↗ | 13.2%ODI 10949520 · 40,000 miMY VEHICLE IS BEING HACKED AND CONTROLLED BY OTHER DRIVERS USING CELL PHONES TO GAIN ACCESS TO MY VEHICLE WHILE DRIVING! , AND WHEN PASSING OR SITTING IN TRAFFIC! THIS HAS BEEN GOING ON FOR OVER SIX MONTHS NOW, EVERY DAY! ALL DAY LONG!! HAVE CONTACTED GMC OVER AND OVER, HAVE BEEN TO THEIR SHOPS OVER AND OVER! , THEY LAUGH AT ME , AND TELL ME NOTHING IS WRONG EVERY TIME. FCC, ONSTAR, S. XM RADIO, ALL REFUSE TO HELP ME WITH THIS PROBLEM, OVER AND OVER , MY VEHICLE STARTS TO SMOKE WHEN THEY ARE DOING THIS, THEY ARE BESIDE ME LAUGHING WITH THEIR CE… Look up ODI 10949520 at NHTSA ↗ | 210.5%ODI 11299215 · 120,000 miTL* THE CONTACT OWNS A 2016 GMC SIERRA 3500. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 55 MPH OR MORE, THE VEHICLE EXPERIENCED THE DEATH WOBBLE. THE CONTACT STATED THE TRANSMISSION FAILURE WARNING LIGHT ILLUMINATED WITH A MESSAGE STATING THAT IN APPROXIMATELY 60 MILES THE VEHICLE WOULD SHUT OFF. THE CONTACT TOOK THE VEHICLE TO THE DEALER (BURTENESS CHEVROLET BUICK GMC OF WHITEWATER LOCATED AT 1389 W MAIN ST, WHITEWATER, WI 53190 PHONE NUMBER [phone removed]) TO BE REPAIRED. THE VEHICLE WAS REPAIRED HOWEVER, THE CONTACT WAS NOT I… Look up ODI 11299215 at NHTSA ↗ | 215.4%ODI 11620867tHE 6L90 TRANMISSION FAILED WITH NO WARNING AT 58,408 MILES. HAD TO BACK THE TRUCK UP IN TRAFFIC OVER 1/2 MILE TO REACH A SAFE SPOT. SEEMS GM IS HAVING A LOT OF PROBLEMS WITH THIS TRANSMISSION AND THEIR 8 SPEED TRANSMISSION. NO ASSISTANCE FROM GM TO REPAIR SEEING I WAS OUT OF THE 5 YEAR 100000 WARRANTY. SEEMS GM KNOW ABOUT THESES PROBLEMS. HAD TO SPEND $5K TO GET NO DEALER SERVICE TO INSTALL A REMANUFACTURED TRANS, HOPING IT WILL NOT HAPPEN AGAIN Look up ODI 11620867 at NHTSA ↗ | 17.1%ODI 11281407 · 58,000 miI WAS DRIVING UP HILL THE TRUCK LOST POWER DIED/SHUTDOWN SO I HAD NO POWER STEERING NO POWER BRAKES WE LIVE ON A COUNTRY RURAL ROAD. HAD THE TRUCK TOWED TO KENDALL CHEVROLET IN EUGENE OREGON WHERE IT HAS BEEN SINCE NOVEMBER 2 WITH ELECTRICAL ISSUES THAT THEY ARE TRYING TO PINPOINT. Look up ODI 11281407 at NHTSA ↗ | 17.7%ODI 11438064While towing our trailer, truck went into reduced power mode, regen message displayed; check engine light came on; loud bag occurred and hissing from under the hood. Truck slowed to 3 mph so we pulled to shoulder and turned the vehicle off. Truck had blown the hose off the the turbo. We reclamped and restarted. Displayed check engine light, reduced power & regen message to keep driving however truck wouldn’t go over a 3mph crawl. Truck lost all power, everything shut down and wouldn’t restart. No dash lights, no error, no crank, no power. We we… Look up ODI 11438064 at NHTSA ↗ | 1937.3%ODI 11418595The computer lite up the dash and reduced power, plus took the trailer brakes off line. This happened while loaded. To reset the system you have to pull over and turn the vehicle off. This happens 2-3 times per day. This was a problem at 600 miles. The transmission shifted from 10 gear to 5th gear while driving 75 miles per hour. The truck had 75,000 miles on it . Had to send another truck out to pick up the load in Santa Rosa New Mexico. The dealer Glenn Polk in Sanger has been working on for the last 4 months There is never a warning… Look up ODI 11418595 at NHTSA ↗ | 735.0%ODI 11454519•The diesel exhaust fluid heater is a faulty component in the system, there is a back order on the part with no ETA • My pickup only does 55MPH right now and soon to do 5MPH you cannot drive on a public road doing 5MPH •There is thousands of other people having the same exact problem! •The DEF light is illuminated on my dash along with the check engine light, when you diagnose the error code it comes up with “P20C1 Reductant Heater C Control Circuit/OPEN” Look up ODI 11454519 at NHTSA ↗ | 619.4%ODI 11642536The transmission failed which stemmed from the faulty (recently recalled valve body). General Motors has been contacted and there is no transmission in sight and is not able to provide an ETA. They are also not willing to cover the catastrophic failure because I am outside of my warranty terms. The dealership has inspected and concluded a whole new transmission is recommended. The vehicle has been in their possible for nearly one (1) month. Look up ODI 11642536 at NHTSA ↗ | 1450.0%ODI 11581689I received a p0747 and p0700 transmission codes on my GMC sierra 3500. It would not engage above 3rd gear and I almost was rear ended by a Semi truck because I was unable to speed up. The vehicle CEL turned on and "Engine power reduced" notification appeared on my cluster. Engine RPMS were at 2800 rpm and my speed limit would not go past ~40mph. I currently have my vehicle being inspected by the local dealership. The vehicle currently has ~19,300 miles Look up ODI 11581689 at NHTSA ↗ | 1224.5%ODI 11630713Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the breaks. I was nearly in an accident recently when the break pedal would not stop the truck in time, due to the soft break pedal. I literally had to steer to the shoulder of the road. 2) When placing transmission in Drive or Reverse from the park position… Look up ODI 11630713 at NHTSA ↗ | 16.3%ODI 11728507 · 40,000 miThe contact owns a 2025 GMC Sierra 3500. The contact stated that the transmission was shifting hard and was jerking while shifting gear. Additionally, the vehicle failed to accelerate above 50 MPH. The messages “Reduced Acceleration” and “DEF Low” were displayed. While refueling the vehicle, the fuel gauge failed to correctly display the level of fuel inside the fuel tank until the vehicle had been driven for approximately 20 minutes. The vehicle was taken to the dealer to be diagnosed, and the contact was informed that the transmission needed … Look up ODI 11728507 at NHTSA ↗ | 250.0%ODI 11744605Have been driving it on four separate occasions and the engine will start running rough and shut off leaving me with no power brakes or power steering. Once when I was going about 30 miles an hour the other three times when I was coming to a stop with a trailer on just took it in Kendall Chevrolet for the first time they are still working on it but unable to duplicate the problem this is a very serious safety concern for myself and possibly for others that have the same issue Look up ODI 11744605 at NHTSA ↗ |
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| Electrical System | 222.2%ODI 10500581 · 90,200 miTRAVELING AT 60MPH ON TURNPIKE PULLING LONG HEAVY TRAILER IN RAIN AT NIGHT WITH MODERATE TO HEAVY TRAFFIC. SUDDEN SHUTDOWN OF ALL SYSTEMS. ENGINE SHUT OFF AND ALL ELECTRICAL SYSTEMS SHUT DOWN. UNABLE TO RESTART OR GET ELECTRICAL SYSTEMS TO WORK. WORKED VEHICLE TO SHOULDER AND HAD IT TOWED TO A DEALERSHIP. WAITING FOR THEM TO OPEN TO DIAGNOSE AND REPAIR. THIS MECHANICAL AND ELECTRICAL FAILURE HAD THE POTENTIAL FOR A CATASTROPHIC INCIDENT. *TR Look up ODI 10500581 at NHTSA ↗ | 00.0%No examples available for this selection. | 114.3%ODI 11492176Transmission control module failed. Reduced power to vehicle to first gear. Blinkers, speedometer door locks, and other Safety and driving devices did not work. Check engine turned on. Device is held at some gmc dealerships nationally however they will not sell the part to have the truck repaired. Look up ODI 11492176 at NHTSA ↗ | 412.9%ODI 10690033 · 10,000 miTL*THE CONTACT OWNS A 2015 GMC SIERRA 3500. THE CONTACT STATED THAT A SNOW PLOW WAS INSTALLED BY A DEALER HOWEVER, AFTER THE INSTALLATION, THE INSTRUMENT PANEL WAS DIM AND THE HEADLIGHTS FAILED TO ILLUMINATE. THE TECHNICIAN UNINSTALLED THE SNOW PLOW AND THE VEHICLE RESUMED TO FUNCTION AS NORMAL. THE TECHNICIAN THEN REINSTALLED THE SNOW PLOW A SECOND TIME BUT THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 10,000. Look up ODI 10690033 at NHTSA ↗ | 210.5%ODI 11450594I had the rear defrost running, and began to hear a sizzling/hissing sound in the back seat. After a minute of hearing this noise, I noticed smoke coming from the rear sliding window. I immediately turned off the rear defrost. A few seconds later, I heard a loud pop and the passenger side of my rear window was shattered. I called and spoke with the dealership and explained what had happened. They said they knew exactly what had happened and it is pretty common in these trucks. Look up ODI 11450594 at NHTSA ↗ | 323.1%ODI 11505276SERVICE TRAILER BRAKING SYSTEM. Faulty control in the dash. Known issue per mechanic but no recall issued. Safety issue as trailer brake may not function properly when towing as a result Look up ODI 11505276 at NHTSA ↗ | 214.3%ODI 11605067 · 53,800 miThe contact owns a 2018 GMC Sierra 3500. The contact stated while driving at various speeds, several unknown warning lights illuminated on the instrument panel. The contact pulled over to the shoulder of the roadway to restart the vehicle. After the vehicle was restarted, the vehicle hesitated to stop while depressing the brake pedal. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 53,800. Look up ODI 11605067 at NHTSA ↗ | 323.1%ODI 11390458 · 9,470 miDRIVING TO WORK. POWER STEERING WENT OUT AND BRAKING SYSTEM SEEM TO BE INEFFECTIVE. INSTRUMENT PANEL SERVICE LIGHT CAME ON WITH THE BATTERY INDICATOR DISPLAYING "BATTERY CHARGING SYSTEM" FAULT. Look up ODI 11390458 at NHTSA ↗ | 815.7%ODI 11375790PROGRESSIVE PAUSE STARTS WHEN STARTING VEHICLE. AFTER A FEW WEEKS OF PAUSE STARTING VEHICLE HAD NO POWER AT ALL. TOWED IT TO DEALER THEY REPLACED A BAD BATTERY. PAUSE START CONTINUED AND AFTER 4-5 WEEKS VEHICLE WOULD NOT START. COULDN'T TURN PARK BREAK OFF. THERE WAS POWER (LIGHTS IN DASH CAME ONE) BUT DIDN'T START. VEHICLE PARKED AND ONLY AFTER SITTING UNUSED THIS HAPPENED BOTH TIMES. (1ST TIME NO START, HADN'T DRIVEN FOR 3 DAYS, END OF SUMMER WEATHER) (2ND NO START, SAT OVERNIGHT COOL WEATHER, BUT NO FREEZING. TOWED TO DEALER AND THEY… Look up ODI 11375790 at NHTSA ↗ | 420.0%ODI 11420443Trailer brake wiring connection continually disconnectsthen reconnects some time later. Some periods of up to 10 minutes without having trailer braking power. Major safety issue when toeing fifth wheel trailer. We lost brakes going down steep grades. GMC is aware of issue, but has not provided a solution. Vehicle has been yo service shop with no resolution. Case has been opened with GMC. Look up ODI 11420443 at NHTSA ↗ | 516.1%ODI 11593194While driving the truck began switching between towing, normal, and off-road driving modes. Lights were flickering and various messages were being displayed on the dash cluster screen. After parking truck and shutting it off all of the lights were flickering and I was unable to start the truck. Charging the batteries did nothing nor was I able to jumpstart the truck with another diesel. After repairs for these issues, at some point the odometer reset and while likely not certain it reset to zero. GM has no way of knowing when it reset and how m… Look up ODI 11593194 at NHTSA ↗ | 414.3%ODI 11595266We’ve had issues with the electrical system/brake lights when we hook any trailer (horse/boat/utility) to the truck. One issue is that the system shows unconnected and the trailer lights blink or do not work. We’ve brought this in to the dealer 3 times and they have yet to resolve the issue. The other issue of melted plastic on our rear sliding mirror. It just appeared one day, possible after using the rear defog button. We took it to the dealer and they also do not know what is the issue. We found several other blogs where owners have had the … Look up ODI 11595266 at NHTSA ↗ | 1224.5%ODI 11575496Hello, I purchased my 2024 GMC 3500 AT4 Seirra late October 2023. Since the purchase date, I have been informed by motorist while at intersections my tailgate was down. I thought I was doing something wrong. On 3/3/2024 I was preparing to wash my truck and noticed my front amber lights were on surrounding my headlights. the vehicle was off, and my keys were in the house. Then my tailgate opener activated on at least 10 - 12 times. The tonneau cover is tight so the tailgate can need assistance opening. Nevertheless, the tailgate has opened on… Look up ODI 11575496 at NHTSA ↗ | 318.8%ODI 11625297Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fa… Look up ODI 11625297 at NHTSA ↗ | 125.0%ODI 11744605Have been driving it on four separate occasions and the engine will start running rough and shut off leaving me with no power brakes or power steering. Once when I was going about 30 miles an hour the other three times when I was coming to a stop with a trailer on just took it in Kendall Chevrolet for the first time they are still working on it but unable to duplicate the problem this is a very serious safety concern for myself and possibly for others that have the same issue Look up ODI 11744605 at NHTSA ↗ |
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| Air Bags | 111.1%ODI 11709666Our Dash board cracked very badly from the top next to the speaker to the passenger side air bag. We purposely use a dash board cover and never place heavy things on it. This is a safety issue as if getting in an accident wouldn’t be bad enough flying shrapnel would be worse. We just had it fixed at a dealership to the tune of $2500. This is not okay as I see this is a constant problem. Look up ODI 11709666 at NHTSA ↗ | 535.7%ODI 10618029 · 37,435 miCOLLISION WITH A DEER PASSENGER FRONT BUMPER . CAUSED SIGNIFICANT DAMAGE TO THAT AREA OF THE TRUCK , NO PASSENGER IN THE TRUCK WITH ME . UPON IMPACT SET OFF ONE OF THE AIRBAGS BUT DID NOT DEPLOY ! SO THE CHEMICAL EXPLOSION THAT EXPELS THE AIRBAG HAPPENED BUT NO AIRBAG CAME OUT . MY AIRBAG DID NOT DEPLOY EITHER. *TR Look up ODI 10618029 at NHTSA ↗ | 00.0%No examples available for this selection. | 39.7%ODI 11444736The contact owns a 2015 GMC Sierra 3500. The contact received a recall notification for NHTSA Campaign Number: 21V504000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The contact had not experienced a failure. VIN tool confirms parts are not available. Look up ODI 11444736 at NHTSA ↗ | 15.3%ODI 10917189SIDE THORAX AND HEAD CURTAIN AIRBAGS ARE LISTED AS STANDARD EQUIPMENT FOR THE 2016 GMC SIERRA TRUCK LINE. I DISCOVERED AFTER MY PURCHASE THAT MY VEHICLE DOES NOT HAVE SIDE AIRBAGS. AFTER RESEARCH I LEARNED THAT WHEN YOU SELECT THE DURAMAX ENGINE OPTION, GMC DELETES ALL SIDE AIRBAGS AND DOES NOT NOTIFY THE CUSTOMER. IT IS DIFFICULT TO DETERMINE IF YOUR VEHICLE HAS SIDE AIRBAGS OR NOT. SO THE BOTTOM LINE IS THAT POSSIBLY THOUSANDS OF CUSTOMERS BELIEVE THEY HAVE SIDE AIRBAGS (LIKE MYSELF) BUT IF THEY SELECTED THE VERY POPULAR (AND QUITE EXPENSIVE… Look up ODI 10917189 at NHTSA ↗ | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 17.7%ODI 11700623 · 103,000 miThe contact owned a 2019 GMC Sierra 3500. The contact stated that while driving during a rain storm at approximately 60 MPH, the vehicle hydroplaned. The contact stated that the vehicle swerved to the right and then to the left. The contact stated that the vehicle drove off the road and down an embankment. The contact stated that he drove over a mound, and the vehicle was launched into the air, and, according to the police report, he traveled approximately 100 feet. The contact stated that the vehicle landed on the front end. The force of the c… Look up ODI 11700623 at NHTSA ↗ | 12.0%ODI 11539857 · 24,000 miThe contact owned a 2022 GMC Sierra. The contact stated that while her husband was driving at an undisclosed speed, the vehicle collided head-on with another vehicle that ran a red light. The air bags did not deploy. No warning lights were illuminated. A police report was filed. No injuries were reported, but the contact and her husband sought medical treatment for various bruises caused by the seat belt at a later date. The vehicle was not taken to the dealer or an independent mechanic but was instead towed to a tow yard. The vehicle was not r… Look up ODI 11539857 at NHTSA ↗ | 00.0%No examples available for this selection. | 26.5%ODI 11479481On July 27, 2022 I was driving my 2022 GMC truck on the freeway. I was rear ended by a semi truck and the passenger side was side swiped by the semi. I was driving the truck with my wife and two kids as passengers. The truck was completely totaled. No airbags deployed and the seat belts did not restrain us. All 4 of us were wearing seat belts. Also, the drivers seat completely broke, it looked like it had been completely reclined to a laying position. A police report was made. All 4 of us were taken by ambulance to the hospital. All 4 of us nee… Look up ODI 11479481 at NHTSA ↗ | 13.6%ODI 11508226I was in an accident and was hit in the right front side of my truck. The other vehicle was believed to be going around 50 mph and I had just rolled thru a stop sign. The other vehicle that hit me had the air bags deploy, but my airbags did not deploy. This is very concerning considering there was enough force to significantly bend the frame on my truck. I was transported to the ER and suffered internal organ bruising due to the accident. If the airbags would have deployed, my body could.have not jolted so much causing these injuries. Look up ODI 11508226 at NHTSA ↗ | 12.0%ODI 11594117 · 250 miThe contact owns a 2024 GMC Sierra 3500 equipped with Michelin Tires, Tire Line: Primacy, Tire Size: LT235/80/R18, DOT Number: (Not Available). The contact stated that while driving at an undisclosed speed, the passenger’s side front tire tread was separating, and the vehicle was vibrating. The contact stated that the inner rim was bent, and additionally, the steering gear box was leaking. The steering wheel was uncontrollable. There were no warning lights illuminated. The vehicle was taken to the local dealer on several occasions and was diagn… Look up ODI 11594117 at NHTSA ↗ | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
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| Engine | 333.3%ODI 10500581 · 90,200 miTRAVELING AT 60MPH ON TURNPIKE PULLING LONG HEAVY TRAILER IN RAIN AT NIGHT WITH MODERATE TO HEAVY TRAFFIC. SUDDEN SHUTDOWN OF ALL SYSTEMS. ENGINE SHUT OFF AND ALL ELECTRICAL SYSTEMS SHUT DOWN. UNABLE TO RESTART OR GET ELECTRICAL SYSTEMS TO WORK. WORKED VEHICLE TO SHOULDER AND HAD IT TOWED TO A DEALERSHIP. WAITING FOR THEM TO OPEN TO DIAGNOSE AND REPAIR. THIS MECHANICAL AND ELECTRICAL FAILURE HAD THE POTENTIAL FOR A CATASTROPHIC INCIDENT. *TR Look up ODI 10500581 at NHTSA ↗ | 214.3%ODI 10916610 · 5,000 miTL* THE CONTACT OWNS A 2013 GMC SIERRA 3500. WHILE THE VEHICLE WAS AT THE DEALER FOR INSPECTION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. IN ADDITION "TRAILER BRAKE SYSTEM" WAS DISPLAYED ACROSS THE MESSAGE BOARD. THE TECHNICIAN DIAGNOSED THAT THE TRAILER BRAKE SYSTEM MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE CONTACT WAS AWARE OF NHTSA CAMPAIGN NUMBER: 14V614000 (ELECTRICAL SYSTEM). THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 5,000. Look up ODI 10916610 at NHTSA ↗ | 114.3%ODI 11440947CP4 High Pressure Fuel Pump failed/disintegrated causing metal shavings to be pumped through out the fuel lines, injectors and connected systems requiring a replacement of the pump, injector and fuel lines totaling over $11,000 in repairs. Trucks mileage was 94112 at the time. Look up ODI 11440947 at NHTSA ↗ | 412.9%ODI 10721253 · 5,421 miWHILE DRIVING WHITE SMOKE BELLOWING OUT FRONT RIGHT TIRE WHEEL WELL. UPON INSPECTION, SMOKE COMING FROM EXHAUST PIPE CLAMP NEAR TURBO. SMELL SO BAD HAVE TO DRIVE WITH WINDOW OPEN. IT APPEARS ENGINE ON FIRE FROM THE AMOUNT OF SMOKE EMITTING FROM UNDER THE HOOD. AT IDLE IT GET WORSE. IT APPEARS SMOKE IS EXHAUST FUMES LEAKING FROM THE PIPE JOINT. NO ENGINE LIGHT TO INDICATE A PROBLEM. Look up ODI 10721253 at NHTSA ↗ | 526.3%ODI 11113566TL* THE CONTACT OWNS A 2016 GMC SIERRA 3500. WHILE PASSING A BOAT RAMP HAULING A BOAT TRAILER, THE BRAKES AND STEERING FAILED TO FUNCTION. THE CONTACT WAS ABLE TO MANEUVER THE VEHICLE AND NOTICED THAT THE SERPENTINE BELT BECAME DETACHED. THE CONTACT WAS ABLE TO RECONNECT THE SERPENTINE BELT. THE VEHICLE WAS TAKEN TO LEGACY BUICK GMC (293 E HOWZE BEACH RD, SLIDELL, LA 70461, [phone removed]) WHERE IT WAS AWAITING DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE AND VIN WERE NOT AVAILABLE. *TT Look up ODI 11113566 at NHTSA ↗ | 215.4%ODI 11633623this vehicle is garage kept and meticulous maintained, has 136,000 miles, original owner, brought to dealer for an oil leak, they said exhaust are frozen and won't come out after heating etc. they have to replace exhaust manifolds! Bolts should not seize is the head of a garage kept vehicle that's heated! Being a mechanic many years ago I have never seen this happen! this is the first year for the new engine, On a internet search I found it's not uncommon, and the bill is going to cost me over $8000 !. Thank you, [XXX] INFORMATION REDACTED PUR… Look up ODI 11633623 at NHTSA ↗ | 17.1%ODI 11265682TL* THE CONTACT OWNS A 2018 GMC SIERRA 3500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V328000 (ENGINE). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. ROYAL MOORE BUICK GMC (1380 SE RIVER RD, HILLSBORO, OR 97123, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS ALSO CONTACTED AND MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. Look up ODI 11265682 at NHTSA ↗ | 215.4%ODI 11438064While towing our trailer, truck went into reduced power mode, regen message displayed; check engine light came on; loud bag occurred and hissing from under the hood. Truck slowed to 3 mph so we pulled to shoulder and turned the vehicle off. Truck had blown the hose off the the turbo. We reclamped and restarted. Displayed check engine light, reduced power & regen message to keep driving however truck wouldn’t go over a 3mph crawl. Truck lost all power, everything shut down and wouldn’t restart. No dash lights, no error, no crank, no power. We we… Look up ODI 11438064 at NHTSA ↗ | 611.8%ODI 11418621The computer lights up the dash reducing power and turning off power to trailer brakes. This has almost caused an accident on several occasions . It happens a couple of times per trips. This vehicle has been in the shop a couple of times per month since it was put into service. Glenn Polk Chevrolet has worked on it each time and the problem is still there. This truck has also had several injector issues. There is an open case with this vehicle with General Motors with no resolution. I have filled out forms on each of my 2020 GMC's 3500'… Look up ODI 11418621 at NHTSA ↗ | 315.0%ODI 11454519•The diesel exhaust fluid heater is a faulty component in the system, there is a back order on the part with no ETA • My pickup only does 55MPH right now and soon to do 5MPH you cannot drive on a public road doing 5MPH •There is thousands of other people having the same exact problem! •The DEF light is illuminated on my dash along with the check engine light, when you diagnose the error code it comes up with “P20C1 Reductant Heater C Control Circuit/OPEN” Look up ODI 11454519 at NHTSA ↗ | 39.7%ODI 11598231 · 68,000 miThe contact owns a 2022 GMC Sierra 3500. The contact stated that the check engine warning light was illuminated intermittently. The contact stated while driving approximately 50-70 MPH, the check engine warning light illuminated. Additionally, the contact noticed that the vehicle was experiencing reduced power and performance. The vehicle was taken to the dealer, where the NOx sensor was replaced and a manual DPF regeneration was performed. The vehicle was repaired and remained at the dealer. The contact related the failure to GM Campaign Numbe… Look up ODI 11598231 at NHTSA ↗ | 310.7%ODI 11714077I was driving in the high way and the vehicle started having issues and then it completely shut off and wouldn’t drive or anything in the middle of the highway and the dash said it was reducing power. Look up ODI 11714077 at NHTSA ↗ | 816.3%ODI 11561998Vehicle would crank over but not start. Diagnosed as Electronic Control Module by dealer. Part ordered on 12/6/23, GM does not have part available as of 12/27/23, vehicle unable to be driven. Look up ODI 11561998 at NHTSA ↗ | 212.5%ODI 11701995“I own a 2025 GMC Sierra with 30,000 miles. The oil cooler failed and caused loss of oil pressure and potential internal engine damage. The dealership acknowledges the failure but refuses to escalate the case or perform a proper inspection. I am being instructed to continue driving the truck even though it may suffer catastrophic failure while driving. This is a safety hazard.” Look up ODI 11701995 at NHTSA ↗ | 00.0%No examples available for this selection. |
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| Unknown Or Other | 222.2%ODI 11032885 · 35,900 miTHE GMC SIERRA 3500HD WHILE IN REGENERATION MODE FUNNELS EXHAUST DIRECTLY INTO THE CAB THROUGH THE VENTS. WHILE GM RECOGNIZED THIS AS A FLAW AND CAME UP WITH A FIX FOR IT, THEY WILL ONLY REPAIR IT IN A 5 YEAR OR 100,000 MILE WINDOW. HOW IS THIS NOT A SAFETY ISSUE WITHOUT AN EXPIRATION? Look up ODI 11032885 at NHTSA ↗ | 17.1%ODI 11290794 · 125,000 miDASH CRACKING OUTBOUND PASSENGER AIR BAG Look up ODI 11290794 at NHTSA ↗ | 00.0%No examples available for this selection. | 39.7%ODI 10949520 · 40,000 miMY VEHICLE IS BEING HACKED AND CONTROLLED BY OTHER DRIVERS USING CELL PHONES TO GAIN ACCESS TO MY VEHICLE WHILE DRIVING! , AND WHEN PASSING OR SITTING IN TRAFFIC! THIS HAS BEEN GOING ON FOR OVER SIX MONTHS NOW, EVERY DAY! ALL DAY LONG!! HAVE CONTACTED GMC OVER AND OVER, HAVE BEEN TO THEIR SHOPS OVER AND OVER! , THEY LAUGH AT ME , AND TELL ME NOTHING IS WRONG EVERY TIME. FCC, ONSTAR, S. XM RADIO, ALL REFUSE TO HELP ME WITH THIS PROBLEM, OVER AND OVER , MY VEHICLE STARTS TO SMOKE WHEN THEY ARE DOING THIS, THEY ARE BESIDE ME LAUGHING WITH THEIR CE… Look up ODI 10949520 at NHTSA ↗ | 00.0%No examples available for this selection. | 215.4%ODI 11012854 · 36 miPURCHASED A NEW 2017 GMC DENALI 3500. THE TRUCK CAME WITH 4 MICHILEN LT 265/70R18 A/T2 TIRES ON IT. THE SPARE TIRE IS A GOODYEAR TIRE. PAGE 401 AND PAGE 402 OF THE OWNERS MANUAL STATES: MIXING TIRES OF DIFFERENT SIZES,BRANDS, OR TYPES MAY CAUSE LOSS OF CONTROL OF THE VEHICLE, RESULTING IN A CRASH OR OTHER VEHICLE DAMAGE. USE THE CORRECT SIZE, BRAND, AND TYPE OF TIRES ON ALL WHEELS." Look up ODI 11012854 at NHTSA ↗ | 00.0%No examples available for this selection. | 215.4%ODI 11643748The other day approximately 5 minutes after leaving my house I noticed a smell and saw some slight smoke coming from my rear window. I immediately turned off the rear defrost and my rear window shattered. The next day I discovered other Chevy/gmc vehicles have a recall for a short circuit in the rear defrost. Unfortunately the dealership will not help me until there is a recall with my vin as there is not an open recall on my vehicle. Look up ODI 11643748 at NHTSA ↗ | 611.8%ODI 11341106 · 2,400 miWHILE TOWING A FIFTH WHEEL CAMPER, THE EXHAUST WAS SO HOT IT MELTED THE CAMPER DIRECTLY BEHIND IT. WAS CAUGHT IN SIDE MIRROR BEFORE ANYTHING CAUGHT ON FIRE. Look up ODI 11341106 at NHTSA ↗ | 315.0%ODI 11623109Multiple instances of diesel engine emissions system parts and software failure. While driving, towing or not, the DIC would randomly display a message that the DEF level is low and reduced speed will occur in x-amount of miles and that mileage would then begin a visible countdown on the DIC, sometimes much more quickly than the actual speed I was traveling. In other words, it might at first state 500 miles remaining, but then be counting down from 500 miles by one mile per second of time, or faster. Each instance, I would park and attempt to r… Look up ODI 11623109 at NHTSA ↗ | 516.1%ODI 11510497I purchased 2022 GMC Sierra HD last year. Due to Micro Chip shortages at the time GMC provided custo.ers a $50.00 credit and notice that they provide the chips ASAP and that it should be provided by December 2022. I like many others accepted the risk for not having parking assist sensors and other features for this period of time. I contacted GMC last month after speaking with my dealer and was told by GMC customer service that GMC has instead adopted an approach of providing Chips to new vehicles while they work on getting chips for those v… Look up ODI 11510497 at NHTSA ↗ | 310.7%ODI 11549084Unknown Truck unexpectedly comes to almost complete stop between speeds of 35 to 55 mph. Occurs more frequently around 40 mph. Truck has been in repair shop and diagnostic can’t explain the problem. Look up ODI 11549084 at NHTSA ↗ | 714.3%ODI 11580555Vehicle caught fire minutes after remote starting. Fire appears to have started on firewall on the left side. We were about to take our kids to school vehicle could have easily caught our house and other property on fire. We did have the check engine light come on occasionally but it would always turn back off, vehicle only had about 12000 miles. Also none of the outlets inside the vehicle never worked. Look up ODI 11580555 at NHTSA ↗ | 212.5%ODI 11701718The integrated wirless phone charger when charging my phone always the phone to get very hot and puts my phone into overheating protcol. The safety concern is that this charger could overheat my phones battery and cause a fire with in the cab of the vehicle. This could cause an imminent threat to the safety of all persons in the vehicle. The issue was reproduced to the dealer that does my regular service. The component has not been inspected by the manufacturer. There is no warning signs produced by the installed device. Look up ODI 11701718 at NHTSA ↗ | 00.0%No examples available for this selection. |
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| Service Brakes, Hydraulic | 00.0%No examples available for this selection. | 17.1%ODI 11690612 · 14,000 miThe contact owns a 2013 GMC Sierra 3500. The contact stated that while driving at 50 MPH, the ABS independently engaged. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure, and informed the contact that the VIN was not under recall. The approximate failure mileage was 14,000. Look up ODI 11690612 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. | 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. | 13.2%ODI 11683399 · 30,000 miThe contact owns a 2022 GMC Sierra 3500. The contact stated that while driving at 30 MPH, the message “Trailer Brake Disconnected" was displayed on the instrument panel. The contact was hauling a 5th-wheel trailer during the failure. The contact pulled over to the side of the road, turned off the vehicle, and waited for several minutes before restarting the vehicle. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. Most recently, while d… Look up ODI 11683399 at NHTSA ↗ | 13.6%ODI 11688172 · 79,000 miThe contact owns a 2023 GMC Sierra 3500. The contact stated that while driving approximately 60 MPH, the messages "Service Charging System" and "Service Diesel Emissions System" were displayed, and suddenly the power steering and power brakes malfunctioned, causing the contact to almost lose control of the vehicle. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 79,000. Look up ODI 11688172 at NHTSA ↗ | 24.1%ODI 11672342 · 20,000 miThe contact owns a 2024 GMC Sierra 3500. The contact stated while driving at approximately 60 MPH and towing a Forest River Riverstone Legacy 5th Wheel trailer, the brake pedal was depressed to slow for oncoming stopped traffic; however, the vehicle failed to respond as needed with the “Service Trailer Brake” warning light illuminated. The contact was able to stop however, the brake pedal had to be depressed to the floorboard to slow the vehicle. The contact had taken the vehicle to a local dealer and was made aware of Customer Satisfaction Pro… Look up ODI 11672342 at NHTSA ↗ | 00.0%No examples available for this selection. | 125.0%ODI 11749030 · 500 miThe contact owns a 2026 GMC Sierra 3500. The contact stated that while driving at 35-40 MPH on the interstate and towing a loaded trailer, the vehicle experienced reduced braking performance. No warning lights illuminated. The local dealer was contacted and informed that the brakes performed differently. Additionally, the dealer stated that the transmission was not downshifting. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 500. Look up ODI 11749030 at NHTSA ↗ |
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| Fuel/Propulsion System | 111.1%ODI 10531497 · 16,400 miWHILE PULLING MY FIFTH WHEEL TRAILER 12500# AT HIGHWAY SPEED 65 MPH PULLING A GRADE THE CHECK ENGINE LIGHT CAME ON AND THE REDUCED ENGINE POWER MESSAGE APPEARED ON THE DASH. THIS REDUCED AND LIMITED THE SPEED TO 50 MPH AND STEPS THE TRUCK DOWN FROM THERE UNTIL YOU CAN ONLY DO 20 MPH ON THE INTERSTATE. THIS ISSUE HAS HAPPENED THREE TIMES IN THREE MONTHS. *TR Look up ODI 10531497 at NHTSA ↗ | 214.3%ODI 11088735 · 34,500 miTL* THE CONTACT OWNS A 2013 GMC SIERRA 3500. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. THE VEHICLE WAS TOWED TO KUHIO CHEVROLET CADILLAC HYUNDAI NISSAN (3033 AUKELE ST, LIHUE, HI 96766, [phone removed]) WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP AND INJECTORS FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 34,500. THE VIN WAS NOT AVAILABLE. Look up ODI 11088735 at NHTSA ↗ | 228.6%ODI 11071586GOT A RECALL ON DECEMBER 15, 2017 ABOUT THE SECOND GAS TANK ISSUE. ADVISED NOT TO FILL THE SECOND TANK BECAUSE IT CAUSE THE FRONT TANK TO EXPAND, RUB THE DRIVE SHAFT, AND CAUSE A LEAK AND POSSIBLE FIRE. THEY SAID THAT THEY WOULD NOTIFY WHEN PARTS ARE AVAILABLE. HAVE NOT HEARD ANYTHING BACK YET. IT HAS BEEN 2 MONTHS. WE TRAVEL LONG DISTANCES WITH THIS TRUCK AND NEED THE ADDED FUEL FROM THE SECOND TANK. THANK YOU Look up ODI 11071586 at NHTSA ↗ | 26.5%ODI 11209541 · 103,000 miI WAS TRAVELING ON A BUSY ROADWAY AT 40 MPH WHEN FUEL FILTER WARNING LIGHT CAME ON SUDDENLY AND VEHICLE LOST ALL POWER - INCLUDING THE LOSS OF POWER STEERING AND POWER BRAKING. THANKFULLY I HAD NOT YET ENTERED THE HIGHWAY AND WAS ABLE TO SLOW VEHICLE DOWN BUT WITH GREAT DIFFICULTY AND NOT INJURE ANYONE AROUND AND THAT DAY WAS NOT TOWING A LOAD. VEHICLE WOULD NOT RESTART. I HAD IT TOWED TO NEAREST DEALERSHIP WHO THEN INFORMED ME THAT THE "BOSCH CP4 FUEL PUMP" HAD EXPLODED SENDING METAL SHRAPNEL THROUGHOUT THE ENTIRE ENGINES FUEL SYSTEM. THE O… Look up ODI 11209541 at NHTSA ↗ | 315.8%ODI 11532754I own a 2016 GMC 3500 Diesel that had a serious mechanical breakdown while traveling on the freeway. The truck lost all motive power and needed to coast across 4 freeway lanes. Once towed to a local GMC Dealer, they diagnosed the problem as the Bosch CP4 fuel pump internally came apart while driving. I have to have this vehicle working so I got it repaired at a cost of $16,145. This is a known issue and losing all power while at highway speeds could have caused a serious incident. Please address this issue before someone dies. Look up ODI 11532754 at NHTSA ↗ | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 17.7%ODI 11620902Bought the vehicle new in 2019 currently at a dealership to have the third in tank electric fuel pump installed. When it was in the shop for the second fuel pump installation the technician informed me that the pump can go out at any time causing a potential accident. Fortunately truck wouldn’t start and was diagnosed at dealership. Look up ODI 11620902 at NHTSA ↗ | 59.8%ODI 11418543The computer malfunctions. It is available for inspection. The computer lights up and causes failure in the trailer brakes. Glenn Polk the dealership in Sanger Texas has been working on a fix but has yet to come up with one. I have spoken with General Motors Representatives several time trying to resolve the problem without result. I also emailed the CEO last Friday and have heard nothing. There were no warning lights until seconds before failure. Look up ODI 11418543 at NHTSA ↗ | 210.0%ODI 11454519•The diesel exhaust fluid heater is a faulty component in the system, there is a back order on the part with no ETA • My pickup only does 55MPH right now and soon to do 5MPH you cannot drive on a public road doing 5MPH •There is thousands of other people having the same exact problem! •The DEF light is illuminated on my dash along with the check engine light, when you diagnose the error code it comes up with “P20C1 Reductant Heater C Control Circuit/OPEN” Look up ODI 11454519 at NHTSA ↗ | 00.0%No examples available for this selection. | 27.1%ODI 11714077I was driving in the high way and the vehicle started having issues and then it completely shut off and wouldn’t drive or anything in the middle of the highway and the dash said it was reducing power. Look up ODI 11714077 at NHTSA ↗ | 48.2%ODI 11622920First incident we were driving on the interstate towing a fifth wheel RV, and several warning lights illuminated before everything just shut down. Manage to get to the side of the road. Vehicle finally restarted and the rest of the trip was uneventful. Second incident, vehicle had not run for two days, got in and while the starter cranks, the engine will not start or run. Engine/Transmission service and fuel system service messages showing on app and on email from OnStar. Vehicle requires towing to dealer. Look up ODI 11622920 at NHTSA ↗ | 00.0%No examples available for this selection. | 125.0%ODI 11744605Have been driving it on four separate occasions and the engine will start running rough and shut off leaving me with no power brakes or power steering. Once when I was going about 30 miles an hour the other three times when I was coming to a stop with a trailer on just took it in Kendall Chevrolet for the first time they are still working on it but unable to duplicate the problem this is a very serious safety concern for myself and possibly for others that have the same issue Look up ODI 11744605 at NHTSA ↗ |
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