U.S. public vehicle records

2004 Chevrolet TRAILBLAZER EXT problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

261 owner complaints analyzed

1 distinct recall campaigns

64,000 mi median reported failure mileage

Scope: 2004 model year. Data updated: 2026-09-30 (September 30, 2026). 216 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Electrical System is the most frequently named component, appearing in 97 of 261 complaints (37.2%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Fuel system concerns	31	11.9%
Electrical and battery issues	24	9.2%
Transmission and shifting	15	5.7%
Engine operation	13	5.0%
Braking behavior	11	4.2%
Steering behavior	10	3.8%

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.

Electrical System

Electrical System: Instrument Cluster/Panel

Fuel System, Gasoline

Power Train:Automatic Transmission

Exterior Lighting

Fuel/Propulsion System

Vehicle Speed Control

Engine And Engine Cooling:Exhaust System

Component breakdown data
Category	Count
Electrical System	97
Electrical System: Instrument Cluster/Panel	50
Fuel System, Gasoline	24
Power Train:Automatic Transmission	11
Exterior Lighting	10
Fuel/Propulsion System	9
Vehicle Speed Control	9
Engine And Engine Cooling:Exhaust System	6

Electrical System: 97; Electrical System: Instrument Cluster/Panel: 50; Fuel System, Gasoline: 24; Power Train:Automatic Transmission: 11; Exterior Lighting: 10; Fuel/Propulsion System: 9; Vehicle Speed Control: 9; Engine And Engine Cooling:Exhaust System: 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: 17; 25,000 to 49,999: 49; 50,000 to 74,999: 65; 75,000 to 99,999: 46; 100,000 to 149,999: 24; 150,000 and above: 15

50,000 to 74,999 miles has the most reports with usable mileage (65). 45 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.

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2004: 2; 2005: 10; 2006: 12; 2007: 19; 2008: 33; 2009: 56; 2010: 47; 2011: 33; 2012: 12; 2013: 12; 2014: 9; 2015: 3; 2016: 2; 2017: 6; 2018: 2; 2019: 3

Pattern summary

Electrical System leads the component reports. Fuel system concerns appears in 31 complaint narratives. Electrical and battery issues appears in 24 complaint narratives. Transmission and shifting appears in 15 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.

Complaint evidence

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

Owner report 10108442 · 2005-02-02 (February 2, 2005)

I PURCHASED A CHEVROLET EXT TRAILBLAZER ON NOV. 26, 2004. 2 MONTHS LATER ON FEB. 1, 2005 IT WAS TOWED INTO THE DEALERSHIP AFTER SHUTTING DOWN 5 TIMES WITH 2 LOUD EXPLOSIONS. THE MALFUCTION OF THE VEHICLE CAME CLOSE TO A COUPLE OF ACCIDENTS OCCURING AND AN ALMOST NEAR DEATH EXPERIENCE FOR MY DAUGHER AND I WHEN IT SHUT DOWN FOR ON A 4 LANE HIGHWAY BY ATTEMPTING TO CROSS IT UNTO THE RESIDENTIAL AREA. THE DEALERSHIP INFORMED ME THAT THE FUEL INJECTION VALVE HAD MALFUCTIONED AND REMAINED OPEN RELEASING ALL THE GASOLINE UNTO THE ENGINE. THEY ARE REPL…

Owner-reported narrative. 5,000 miles reported. Look up ODI 10108442 at NHTSA ↗

Owner report 10190338 · 2007-05-09 (May 9, 2007)

IN THE 2004 CHEVROLET TRAILBLAZER ENGINE CHECK LIGHT STAYED ON. UNFORTUNATELY, NONE OF THE 10 CHEVROLET DEALERS WE TOOK THIS VEHICLE TO COULD DIAGNOSE THE PROBLEM W UNTIL WE WERE PAST THE 70,000 MILES EXTRA WARRANTY CHEVROLET ADDED TO COVER ALL THE VEHICLES WITH THIS PROBLEM. WARRANTY INFORMATION WAS ADDRESSED IN SPECIAL POLICY ADJUSTMENT- FUEL TANK INLET CHECK VALVE FRACTURE #05012 ON MARCH 14, 2005. APPARENTLY, AS WE WERE TOLD BY A CHEVROLET DEALER THIS VEHICLE HAD A FRACTURE IN THE GAS TANK, AND THE ONLY WAY TO FIX IT WAS TO REP…

Owner-reported narrative. 65,000 miles reported. Look up ODI 10190338 at NHTSA ↗

Owner report 10143058 · 2005-11-17 (November 17, 2005)

THERE HAS NOT BEEN AN ACCIDENT YET, JUST ONE LOOKING FOR A PLACE TO HAPPEN. MY VEHICLE I BELIEVE HAS AN ELECTRICAL PROBLEM. WHICH IN TURN AFFECT ALL FUNCTIONS OF THE VEHICLE, SAFETY BEING ONE. I HAVE HAD (2) FAN SWITCHES GO BAD (2) CRANKSHAFT SENSORS GO BAD. (1) CRUISE CONTROL MALFUNCTION. (1) TURN SIGNAL RELAY (1) RADIO CONSOLE REPLACED FOR OVERHEATING (1) HEADLIGHTS WHEN BELOW 32 DEGREES FLUCUATE IN BRIGHTNESS TILL VEHICLE WARMS UP. DEALER STATED THIS IS NORMAL OPERATION. HA,HA, AND TRANSMISSION SHIFTING PROBLEMS (1)THEY REPROGRAMED COMPUTER …

Owner-reported narrative. 2,000 miles reported. Look up ODI 10143058 at NHTSA ↗

Owner report 10221171 · 2008-03-14 (March 14, 2008)

I HAVE A 2004 TRAILBLAZER WITH THE SAME PROBLEMS WITH THE RECALL THAT IS GOING ON WITH GM. THE INSTRUMENT CLUSTER IS DOING THE SAME EXACT THING AS THE TAHOE, AVALANCHE, AND I FORGOT WHAT THE OTHER THE CAR WAS. THE FUEL, WATER, AND BATTERY GAUGES, THE AIRBAG LIGHT, A LONG WITH THE BATTERY LIGHT STAYS ON. WENT TO THE DEALERSHIP TO FIND OUT WHY THERE WASN'T A RECALL AND THEY COULDN'T GIVE ME A ANSWER. I FEEL THAT IF GM IS HAVING THE SAME PROBLEMS WITH THE OTHER CARS AND HAVEN'T LOOK TO SEE IF THERE IS COMPLAINTS ON THESE, WHY HAVEN'T THEY ADDED T…

Owner-reported narrative. 62,580 miles reported. Look up ODI 10221171 at NHTSA ↗

Owner report 10157968 · 2006-05-21 (May 21, 2006)

TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. *JB

Owner-reported narrative. 39,000 miles reported. Look up ODI 10157968 at NHTSA ↗

Owner report 10160600 · 2006-06-23 (June 23, 2006)

ENGINE STALLS AT VARIOUS TIMES FOR NO REASON. HAVE HAD IT INTO DEALERSHIP MANY TIMES. DEALERSHIP HAS BEEN UNABLE TO ISOLATE PROBLEM. SERVICE ENGINE SOON LIGHT CAME ON AFTER FIRST STALL. DEALERSHIP RESET COMPUTER. SINCE THEN, THE ENGINE HAS STALLED AT LEAST 5 TIMES. SES LIGHT HAS NOT COME BACK ON. ENGINE USUALLY RESTARTS AFTER APPROX 5 MINUTES. *NM

Owner-reported narrative. 24,000 miles reported. Look up ODI 10160600 at NHTSA ↗

Owner report 10149632 · 2006-02-07 (February 7, 2006)

FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,…

Owner-reported narrative. 24,100 miles reported. Look up ODI 10149632 at NHTSA ↗

Owner report 10166790 · 2006-08-28 (August 28, 2006)

01/27/04,09/28/05,11/18/05 TOOK VEHICLE IN FOR SERVICE ENGINE SOON LIGHTS, 04/26/06 TOOK VEHICLE IN FOR METALLIC RATTLE SOUND SUSPECTING HEAT SHIELD ON EXHAUST MANIFOLD. DEALERSHIP STATED FRONT BACKING PLATES WERE CONTACTING STEERING KNUCKLE. 04/21/06 BEGAN DRIVE FROM OKC, OK TO VANOUVER, WASHINGTON, MIDTRIP NOTED SAME NOISE. ON TRIP NOISE BECAME EXTREMELY LOUDER. STOPPED AT CHEYENNE WY DEALERSHIP COULDN'T GET APPT FOR SEVERAL DAYS. HUSBAND REMOVED HEAT SHIELD IN EVANSTON WY ON 8/23 AND DISCOVERED CRACKED EXHAUST MANIFOLD. 41000 MILES ON V…

Owner-reported narrative. 3,900 miles reported. Look up ODI 10166790 at NHTSA ↗

Owner report 10167754 · 2006-09-09 (September 9, 2006)

MY TRAILBLAZER HAS STALLED (CUT OFF) NOW 4 TIMES AND IT IS GETTING OLD AND UNSAFE. WHEN YOU ARE GOING DOWN I-95 AND IT CUTS OFF. IMAGINE HAVING NO POWERING STEERING AND TRYING TO GET OUT OF THE WAY BEFORE YOU GET HIT GOING 70 MPH! AND CHEVROLET WILL NOT TAKE IT BACK OR HELP WITH A TRADE! I MAY CONTACT THE PAPERS AND HAVE SOMEONE LOOK INTO THIS!! *NM

Owner-reported narrative. Look up ODI 10167754 at NHTSA ↗

Explore the data

Vehicle analysis explorer

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

Data completeness

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

82.8%Usable mileage216 / 261 records

100.0%Valid incident date261 / 261 records

100.0%Valid filing date261 / 261 records

100.0%Ordered incident and filing dates261 / 261 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	2002	2003	2004	2006
Electrical System	1212.0% ODI 10102796 · 15,000 mi ELECTRICAL PROBLEM REAR VIEW MIRROR COMPASS NOT READING RIGHT AND OUTSIDE TEMP. NOT READING CORRECT ON A HOT 80 DEGREE DAY. READS -33 AND NOW MY A/C WONT WORK BECAUSE IT SAYING THAT'S ITS TOO COLD FOR THE A/C TO BE ON. *JB Look up ODI 10102796 at NHTSA ↗	5216.6% ODI 10060860 · 21,130 mi COMPLETE POWER FAILURE WHILE DRIVING VEHICLE IN TRAFFIC ON INTERSTATE. CRUISING UP THE INTERSTATE AT 65-70 MPH AND VEHICLE DASH WENT BLACK, STEERING LOCKED, COASTED TO ROADSIDE AND TRIED TO RESTART VEHICLE. IT TOOK 5 ATTEMPTS BEFORE VEHICLE WOULD RESTART. THIS HAPPENED TWICE MORE THE SAME DAY. DEALERSHIP HAD VEHICLE FOR 5 DAYS AND STATED THEY WERE "UNABLE TO DUPLICATE CUSTOMERS CONCERN", BUT REPROGRAMMED THE PCM ANYWAY. Look up ODI 10060860 at NHTSA ↗	9737.2% ODI 10143058 · 2,000 mi THERE HAS NOT BEEN AN ACCIDENT YET, JUST ONE LOOKING FOR A PLACE TO HAPPEN. MY VEHICLE I BELIEVE HAS AN ELECTRICAL PROBLEM. WHICH IN TURN AFFECT ALL FUNCTIONS OF THE VEHICLE, SAFETY BEING ONE. I HAVE HAD (2) FAN SWITCHES GO BAD (2) CRANKSHAFT SENSORS GO BAD. (1) CRUISE CONTROL MALFUNCTION. (1) TURN SIGNAL RELAY (1) RADIO CONSOLE REPLACED FOR OVERHEATING (1) HEADLIGHTS WHEN BELOW 32 DEGREES FLUCUATE IN BRIGHTNESS TILL VEHICLE WARMS UP. DEALER STATED THIS IS NORMAL OPERATION. HA,HA, AND TRANSMISSION SHIFTING PROBLEMS (1)THEY REPROGRAMED COMPUTER … Look up ODI 10143058 at NHTSA ↗	3719.6% ODI 10226554 · 44,000 mi VEHICLE WAS ON AND BEING DRIVEN ON THE HIGHWAY/FREEWAY WHEN IT SHUT OFF AND LOST POWER. VEHICLE CAME A STOP AND RESTARTED VEHICLE AND IT DID NOT START IMMEDIATELY AFTER A FEW ATTEMPTS IT STARTED AS IF NOTHING HAPPENED AND I DROVE IT HOME. LUCKILY I ARRIVED HOME AND ENTERED MY DRIVEWAY AND IT SHUT OFF AGAIN AND HAS NOT BEEN ABLE TO BE RESTARTED SINCE. I HAVE NOT GOTTEN ANY RESOLUTION OR HELP FROM A CHEVROLET COMPANY AND THEY CAN NOT SAY WHAT IT POSSIBLY COULD BE. THERE ARE TRAILBLAZER FORUMS ONLINE THAT STATE THE SAME BY OTHER OWNER WHO ARE EXP… Look up ODI 10226554 at NHTSA ↗
Fuel System, Gasoline	99.0% ODI 10167420 · 45,000 mi TOP OF GAS TANK - POURS OUT GAS. *NM Look up ODI 10167420 at NHTSA ↗	3611.5% ODI 10222690 I HAVE A 2003 TRAILBLAZER WITH 73,000 MILES ON IT. JUST RECENTLY WE ARE SMELLING GAS FUMES REALLY BAD TO THE POINT IT MAKES US SICK AND IS ALSO HARD TO DEAL WITH ONE CAR HAVING TO BE DROPPED OFF AT WORK, ETC. I HAVE 3 CHILDREN AND HAVE PARKED THE VEHICLE BECAUSE NUMBER 1, I FEEL LIKE THIS IS A BIG SAFETY HAZARD FOR MY CHILDREN AND NUMBER 2, I CANNOT AFFORD TO REPAIR THIS AFTER READING ALL THE COMMENTS ON THE INTERNET ($900.-$1000. TO REPAIR). IT SOUNDS LIKE THERE ARE A LOT OF PEOPLE DEALING WITH THE SAME THING. CAN YOU TELL ME WHERE TO GO … Look up ODI 10222690 at NHTSA ↗	249.2% ODI 10166212 (1) FUEL SENSOR WENT BAD ON MY '04 CHEVY TRAILBLAZER EXT LS 4WD 4.2 LITER V6 ENGINE WHICH HAS (26,000 MILES ON IT - EXCELLENT CONDITION), THEREBY (2) CAUSING THE CATALYTIC CONVERTER TO BECOME CONGESTED CAUSING LOSS OF POWER FOR USE AND TOWING ON THE VEHICLE. (3) TOLD BY THE DEALER WHERE VEHICLE PURCHASED THAT THIS ITEM IS NOT AVAILABLE FOR CONSUMER USE BY GM PARTS AND SERVICE. TOLD I WOULD HAVE TO WAIT UP TO 3 MONTHS FOR ITEM TO BE AVAILABLE FOR PUBLIC RELEASE. THIS IS NOT ACCEPTABLE ON A LEASED VEHICLE. PAYING TO NOT BE ABLE TO USE VEHICLE TO … Look up ODI 10166212 at NHTSA ↗	10254.0% ODI 10229002 · 40,000 mi GAS GAUGE IS NO LONGER WORKING AND GAS LIGHT STAYS ON NO MATTER WHAT THE FUEL LEVEL IS. *TR Look up ODI 10229002 at NHTSA ↗
Electrical System: Instrument Cluster/Panel	00.0% No examples available for this selection.	227.0% ODI 10184942 · 76,912 mi TL* - THE CONTACT CALLED REGARDING THE 2003 CHEVROLET TRAILBLAZER EXT. THE CONTACT STATED THE SPEEDOMETER WOULD NOT GO BACK TO ZERO WHEN THE IGNITION WAS TURNED OFF. THE SPEEDOMETER WOULD STATE 50-70 MPH WHEN ONLY TRAVELING 5 MPH. THE SPEEDOMETER CLUSTER WAS REPLACED. THE FAILURE MILEAGE WAS 76912. THE CONTACT HAS THE REPAIR ORDER. THE CURRENT MILEAGE WAS 875000.AK UPDATED 04/05/07. JB Look up ODI 10184942 at NHTSA ↗	5019.2% ODI 10157968 · 39,000 mi TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. *JB Look up ODI 10157968 at NHTSA ↗	31.6% ODI 10229002 · 40,000 mi GAS GAUGE IS NO LONGER WORKING AND GAS LIGHT STAYS ON NO MATTER WHAT THE FUEL LEVEL IS. *TR Look up ODI 10229002 at NHTSA ↗
Power Train:Automatic Transmission	1818.0% ODI 10082873 · 36,750 mi VECHILE TRANSMISSIN FAILURE.*AK Look up ODI 10082873 at NHTSA ↗	299.3% ODI 10056991 · 4,041 mi THIS VEHICLE IS 4 MONTHS OLD AND JUST ROLLED OVER TO 7000 MILES. IT IS IN THE SHOP CURRENTLY FOR THE SIXTH TIME AND HAS NOW BEEN OUT OF COMMISSION FOR OVER 30 DAYS. IT HAS HAD MULTIPLE TRANSMISSION PROBLEMS; VALVE BODY TWICE, TORQUE CONVERTER, SHIFT SOLENOID, BTSI SOLENOID, FLOOR SHIFTER (WITH CONSOLE) ALL HAD TO BE REPLACED. IT IS IN THE SHOP NOW FOR THE 4 WHEEL DRIVE FOR THE SECOND TIME; 1ST TIME TO REPAIR PROBLEM I WAS HAVING AND REPAIRED PER SERVICE BULLETIN. OBVIOUSLY THAT DID NOT REPAIR THE PROBLEM AS I JUST HAD THE SAME PROBLEM AGAIN. TH… Look up ODI 10056991 at NHTSA ↗	114.2% ODI 10149632 · 24,100 mi FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,… Look up ODI 10149632 at NHTSA ↗	10.5% ODI 10416604 · 73,162 mi I WAS DRIVING HOME FROM WORK IN MY 2006 TRAILBLAZER EXT. AFTER STOPPING AT THE STOP SIGN IN FRONT OF MY HOME, I PRESSED THE CENTER BUTTON ON THE OVERHEAD CONSOLE TO OPEN THE GARAGE DOOR AND PROCEEDED TO TURN RIGHT AS TO POSITION THE VEHICLE TO ALLOW FOR BACKING-UP ONTO MY DRIVEWAY AND INTO THE RIGHT PARKING HALF OF MY GARAGE. BUT AS I SHIFTED THE TRAILBLAZER INTO REVERSE, I BEGAN TO PRESS THE ACCELERATOR PEDAL, BUT THE VEHICLE WOULD NOT MOVE. I COULD FEEL THAT THE TRANSMISSION WAS NOT SLIPPING, THE ENGINE WAS UNDER LOAD, AND IT WAS AS IF I WA… Look up ODI 10416604 at NHTSA ↗
Exterior Lighting	44.0% ODI 10272536 · 92,000 mi THE TAILLIGHTS ARE DELAYED WHEN NEEDING TO TURN ON. IF YOU APPLY THE BRAKE, BLINKER OR PLACE VEHICLE IN REVERSE, THE LIGHTS WILL NOT COME ON UNTIL A FEW SECONDS HAVE PASSED. ALSO CONDENSATION BUILDS UP ON THE INSIDE LENS. IT HAPPENS EVER TIME I DRIVE OR USE THE VEHICLE. A PREVIOUS RECALL ON THE TAILLIGHTS DID NOT COVER THE DELAY OR CONDENSATION ACCORDING TO THE DEALER AND GM. SO FAR I HAVE NOT TAKEN ANY CORRECTIVE STEPS, I AM GOING TO TRY REPLACING THE ASSEMBLY AND HOPE THAT RESOLVES IT. THE LIGHT IS NOT CRACKED OR DAMAGED IN ANY WAY, AND … Look up ODI 10272536 at NHTSA ↗	103.2% ODI 10125094 · 17,327 mi DT: LEFT DRIVER'S SIDE OUTSIDE MIRROR IS NOT HOLDING THE CORRECT SETTINGS, AND CLICKS CONSTANTLY. THE MIRROR IS HITTING AGAINST SOMETHING, AND TURNS COMPLETELY TO THE GROUND. WHEN USING KEYLESS ENTRY THE MIRRORS ALSO TURN TO THE GROUND. THE MIRROR IS CHANGING BY ITSELF, AND IT IS NOT GOING BACK TO THE CORRECT SETTING. THE MIRROR IS ALWAYS MAKING A CLICKING NOISE AND IT IS FACING DOWNWARD. THERE IS NO PROBLEM WITH THE RIGHT SIDE. THE DEALER REPLACED THE RIGHT SIDE MIRROR, AND FROM THEN ON THE LEFT SIDE HAS NOT WORKED. CONSUMER HAS TAKEN … Look up ODI 10125094 at NHTSA ↗	103.8% ODI 10237497 · 44,000 mi STARTING JUNE 17, 2008, THE LOW BEAMS ON MY 2004 CHEVROLET TRAIL BLAZER LT GO OUT INTERMITTENTLY - THE HIGH BEAMS, FOG LIGHTS, HAZARD LIGHTS, AND TURN SIGNAL LIGHTS STILL WORK - ONLY LOW BEAMS CAUSING PROBLEMS. I KEEP MY LIGHTS SETTING IN THE POSTION THAT THEY COME ON WHEN I START MY CAR. I CONSIDER THIS A SAFETY FACTOR. THE LIGHTS WILL GO OUT SUDDENLY. I CAN ONLY DOCUMENT ONE TIME THAT THEY WENT OUT DURING THE DAY TIME, BUT HAVE DOCUMENTED SEVEN (7) TIMES THAT THE LIGHTS WENT OFF AT NIGHT. THE NEXT SPACE ON THIS FORM ASKS FOR THE APP… Look up ODI 10237497 at NHTSA ↗	115.8% ODI 10318891 · 34,000 mi LIGHT KEEP GOING OUT WHILE DRIVING AT NIGHT. *TR Look up ODI 10318891 at NHTSA ↗
Fuel System, Gasoline:Storage:Tank Assembly	55.0% ODI 10086215 I OWN A 2002 TRAIL BLAZER EXT. I BOUGHT IT BRAND NEW AND I HAVE HAD MANY MANY PROBLEMS WITH IT. I FINALLY HAVE HAD IT AND DECIDED TO SEE IF THE INTERNET REPORTED ANY SIMILAR PROBLEMS AND TO MY AMAZEMENT THERE ARE MANY PEOPLE OUT THERE WITH THE SAME PROBLEMS, BUT HERE IS MY STORY. I HAVE HAD TO HAVE THE BRAKE LIGHTS ELECTRICAL SYSTEM ON BOTH SIDES REPLACED, MOLDING AROUND THE LICENSE PLATE FRAME REPAIRED, OXYGEN SENSOR REPLACED, SWAY BARS REPLACED, WINDSHIELD WIPER MOTORS REPLACED, LEFT SIDE PASSENGER WINDOW MOTOR BROKE TWICE, GAS TANK REPLAC… Look up ODI 10086215 at NHTSA ↗	154.8% ODI 10104638 · 55,000 mi SERVICE ENGINE LIGHT CAME ON IMMEDIATELY AFTER FILLING TANK WITH GAS. TOOK TO MECHANIC AND THEY TIGHTENED THE GAS CAP AND THEN RESET THE SERVICE ENGINE LIGHT AND DROVE AROUND AND NO LIGHT CAME ON. THREE DAYS LATER THE SERVICE ENGINE SOON LIGHT CAME ON AGAIN. TOOK BACK TO MECHANIC AND THEY RAN MORE DIAGNOSTICS AND FOUND THREE CRACK S IN THE OPENING (NECK) OF THE GAS TANK. I HAD TO HAVE THE TANK REPLACED IN ORDER FOR THE VEHICLE TO FUNCTION WITHOUT THE SERVICE ENGINE LIGHT TO COME ON. A NEW GAS TANK ON A 2003 VEHICLE IS UNHEARD OF AND I WONDER HO… Look up ODI 10104638 at NHTSA ↗	10.4% ODI 10190338 · 65,000 mi IN THE 2004 CHEVROLET TRAILBLAZER ENGINE CHECK LIGHT STAYED ON. UNFORTUNATELY, NONE OF THE 10 CHEVROLET DEALERS WE TOOK THIS VEHICLE TO COULD DIAGNOSE THE PROBLEM W UNTIL WE WERE PAST THE 70,000 MILES EXTRA WARRANTY CHEVROLET ADDED TO COVER ALL THE VEHICLES WITH THIS PROBLEM. WARRANTY INFORMATION WAS ADDRESSED IN SPECIAL POLICY ADJUSTMENT- FUEL TANK INLET CHECK VALVE FRACTURE #05012 ON MARCH 14, 2005. APPARENTLY, AS WE WERE TOLD BY A CHEVROLET DEALER THIS VEHICLE HAD A FRACTURE IN THE GAS TANK, AND THE ONLY WAY TO FIX IT WAS TO REP… Look up ODI 10190338 at NHTSA ↗	00.0% No examples available for this selection.
Fuel System, Gasoline:Storage:Tank Assembly:Filler Pipe And Cap	88.0% ODI 10140261 · 70,000 mi AFTER SMELLING GAS FUMES AND HAVING THE "SERVICE ENGINE SOON" LAMP ILLUMINATED, I TOOK MY 2002 CHEVROLET TRAILBLAZER EXT TO MY MECHANIC FOR SERVICE. THE ATTACHMENT FROM THE FUEL FILLER LINE AND THE GAS TANK WAS LOOSE. HE RELAYED THAT CHEVY WAS HAVING A LOT OF PROBLEMS WITH THIS. AFTER PURSUING THIS WITH GM, I FOUND A SPECIAL POLICY # 05012. GM WILL FIX THE PROBLEM ON VEHICLES WITH UP TO 70,000 MILES. MY VEHICLE HAS 72,000 MILES. GM REFUSES TO REPAIR THIS DEFECT. *JB Look up ODI 10140261 at NHTSA ↗	134.2% ODI 10141760 · 49,130 mi DT: THE CONTACT DISCOVERED A SMALL CRACK ALONG THE NECK OF THE GAS TANK ALLOWING VISIBLE LEAKAGE WHEN FILLING UP WITH GASOLINE OR WHILE DRIVING. HE TOOK THE VEHICLE TO A DEALER. THE DEALER CONFIRMED THERE WAS A LEAK ON THE FILLER PIPE OF THE GASOLINE STORAGE TANK ASSEMBLY. DUE TO THE MILEAGE THIS WAS NOT COVERED UNDER WARRANTY. THE DEALER DID HOWEVER OFFER COST ASSISTANCE BY SPLITTING THE REPAIR COST. NO REPAIRS HAVE BEEN MADE AT THIS TIME. AK UPDATED 11/30/2005 - NM Look up ODI 10141760 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Fuel System, Other	00.0% No examples available for this selection.	00.0% No examples available for this selection.	51.9% ODI 10259850 · 85,000 mi THE GAUGES ON MY 2004 CHEVROLET TRAILBLAZER DO NOT WORK. I HAD THIS SAME PROBLEM SEVERAL MONTHS AGO AND TOOK TO DEALERSHIP TO FIX, THEY SAID THERE WAS NOTHING WRONG. NOW MY WARRANTY IS OUT AND THEY AGAIN ARE NOT WORKING. IT IS NOT SAFE TO DRIVE WHEN THE SPEEDOMETER, TACHOMETER, OIL GAUGE, AND TEMPERATURE GAUGES DON'T WORK. APPARENTLY THIS IS A PROBLEM THAT MANY OWNERS OF THE SAME MODEL HAVE REPORTED AND NOTHING HAS BEEN DONE ABOUT IT. THIS IS A SAFETY HAZZARD AND SHOULD HAVE A RECALL ASSOCIATED WITH IT WITH CHREVOLET FOOTING THE BILL. I G… Look up ODI 10259850 at NHTSA ↗	168.5% ODI 10258943 · 53,000 mi AT AROUND 53,000 MI I FILLED MY GAS TANK AND WHEN I STARTED THE TRAILBLAZER UP THE FUEL GAUGE READ EMPTY AND THE LOW FUEL LIGHT WAS ON. AFTER ABOUT 20 MILES THE GAUGE STARTED TO REGISTER, BUT WOULD INTERMITTENTLY DROP TO EMPTY. THIS HAPPENS EVERY TIME I FILL UP. NOW THE CHECK ENGINE LIGHT COMES ON AND SHUTS OFF RANDOMLY. I HAVE NOT HAD IT CHECKED OUT FOR A SOLUTION YET. *TR Look up ODI 10258943 at NHTSA ↗

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
Electrical System	48,300–84,000 mi	64,000 mi	81	ODI 10143058 · 2,000 mi THERE HAS NOT BEEN AN ACCIDENT YET, JUST ONE LOOKING FOR A PLACE TO HAPPEN. MY VEHICLE I BELIEVE HAS AN ELECTRICAL PROBLEM. WHICH IN TURN AFFECT ALL FUNCTIONS OF THE VEHICLE, SAFETY BEING ONE. I HAVE HAD (2) FAN SWITCHES GO BAD (2) CRANKSHAFT SENSORS GO BAD. (1) CRUISE CONTROL MALFUNCTION. (1) TURN SIGNAL RELAY (1) RADIO CONSOLE REPLACED FOR OVERHEATING (1) HEADLIGHTS WHEN BELOW 32 DEGREES FLUCUATE IN BRIGHTNESS TILL VEHICLE WARMS UP. DEALER STATED THIS IS NORMAL OPERATION. HA,HA, AND TRANSMISSION SHIFTING PROBLEMS (1)THEY REPROGRAMED COMPUTER … Look up ODI 10143058 at NHTSA ↗ ODI 10149632 · 24,100 mi FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,… Look up ODI 10149632 at NHTSA ↗ ODI 10160600 · 24,000 mi ENGINE STALLS AT VARIOUS TIMES FOR NO REASON. HAVE HAD IT INTO DEALERSHIP MANY TIMES. DEALERSHIP HAS BEEN UNABLE TO ISOLATE PROBLEM. SERVICE ENGINE SOON LIGHT CAME ON AFTER FIRST STALL. DEALERSHIP RESET COMPUTER. SINCE THEN, THE ENGINE HAS STALLED AT LEAST 5 TIMES. SES LIGHT HAS NOT COME BACK ON. ENGINE USUALLY RESTARTS AFTER APPROX 5 MINUTES. *NM Look up ODI 10160600 at NHTSA ↗
Electrical System: Instrument Cluster/Panel	46,350–79,500 mi	62,000 mi	43	ODI 10157968 · 39,000 mi TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. JB Look up ODI 10157968 at NHTSA ↗ ODI 10181671 · 40,000 mi AT 40,000 MILES MY CHEVY TRAILBLAZER'S SPEEDOMETER STOPPED WORKING- AT 120 MPH AND HAS BEEN STUCK THERE FOR A WEEK. JB Look up ODI 10181671 at NHTSA ↗ ODI 10182733 · 36,000 mi AT APPROXIMATELY 36,000 MILES THE SPEEDOMETER ON MY CHEVY TRAILBLAZER STARTED ACTING FUNNY. AT APPROXIMATELY 40,000 MILES IT STARTED TO GET STUCK. AT 45,000 MILES IT STOPPED WORKING ALTOGETHER. IT IS NOW STUCK IN THE DOWN POSITION POINTING TOWARD THE INSTRUMENT PANEL. I HAVE SPOKEN TO NUMEROUS CHEVY TRAILBLAZER OWNERS AND HAVE VISITED A NUMBER OF ONLINE DISCUSSION GROUPS AND HAVE FOUND OUT THAT A NUMBER OF PEOPLE HAVE HAD THIS SAME PROBLEM. THIS IS A VERY SERIOUS SAFETY ISSUE, WHICH CAN LEAD TO INJURY OR DEATH. *NM Look up ODI 10182733 at NHTSA ↗
Fuel System, Gasoline	60,000–103,000 mi	84,000 mi	21	ODI 10238945 · 73,000 mi "SERVICE ENGINE SOON" LIGHT CAME ON. TOOK IT TO DEALERSHIP. WAS TOLD THAT THE FUEL CAP WAS BAD AND THERE WAS A CRACK IN THE FUEL TANK. REPLACED BOTH PARTS COSTING $946.73. TR Look up ODI 10238945 at NHTSA ↗ ODI 10239132 · 84,000 mi FUEL SMELL/ LEAK. TR Look up ODI 10239132 at NHTSA ↗ ODI 10245379 · 50,000 mi I RECEIVED A NOTICE FROM CHEVROLET DATED OCTOBER 2008 REGARDING MY 2004 TRAILBLAZER EXT. THE NOTICE STATED A FUEL TANK MODULAR RESERVOIR ASSEMBLY MAY DEVELOP DUE TO CORROSION AND ALLOW FUEL TO LEAK. I WAS INFORMED THAT I MUST WAIT FOR THE CORROSION TO CAUSE A LEAK OF FUEL (AND RISK A FIRE HAZARD) FOR THE REPAIR TO BE COVERED. I WAS ALSO INSTRUCTED NOT TO TAKE MY VEHICLE TO MY CHEVROLET DEALER AS A RESULT OF THE NOTICE. I THINK THIS A PLAYING RUSSIAN ROULETTE WITH ALL OF THE OWNERS OF 2004 CHEVROLET TRAILBLAZERS. THIS IS UNFAIR AND DANGEROUS IN… Look up ODI 10245379 at NHTSA ↗
Power Train:Automatic Transmission	46,000–71,256 mi	65,459 mi	9	ODI 10149632 · 24,100 mi FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,… Look up ODI 10149632 at NHTSA ↗ ODI 10157968 · 39,000 mi TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. JB Look up ODI 10157968 at NHTSA ↗ ODI 10163494 · 46,000 mi DT: THE CONTACT STATED THAT WHILE DRIVING UP A DRIVEWAY AT 10 MPH, THE TRANSMISSION SLIPPED, AND WOULD NOT ACCELERATE WHEN THE PEDAL WAS DEPRESSED. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE. Look up ODI 10163494 at NHTSA ↗
Exterior Lighting	44,000–88,000 mi	74,000 mi	9	ODI 10237497 · 44,000 mi STARTING JUNE 17, 2008, THE LOW BEAMS ON MY 2004 CHEVROLET TRAIL BLAZER LT GO OUT INTERMITTENTLY - THE HIGH BEAMS, FOG LIGHTS, HAZARD LIGHTS, AND TURN SIGNAL LIGHTS STILL WORK - ONLY LOW BEAMS CAUSING PROBLEMS. I KEEP MY LIGHTS SETTING IN THE POSTION THAT THEY COME ON WHEN I START MY CAR. I CONSIDER THIS A SAFETY FACTOR. THE LIGHTS WILL GO OUT SUDDENLY. I CAN ONLY DOCUMENT ONE TIME THAT THEY WENT OUT DURING THE DAY TIME, BUT HAVE DOCUMENTED SEVEN (7) TIMES THAT THE LIGHTS WENT OFF AT NIGHT. THE NEXT SPACE ON THIS FORM ASKS FOR THE APP… Look up ODI 10237497 at NHTSA ↗ ODI 10260411 · 53,000 mi BRAKE LIGHTS WENT OUT ALL THE TIME WAITING ON RESPONSE. *TR Look up ODI 10260411 at NHTSA ↗ ODI 10356377 · 167,723 mi LOW BEAMS WENT OFF AS I WAS DRIVING DOWN RURAL ROADWAY. THIS WAS AT 10:45 AT NIGHT ON MY WAY TO WORK. HAD TOO SIT BY SIDE OF ROAD FOR SOME TIME WITH NO LIGHTS. FINALLY CAME BACK ON. THIS HAS HAPPENED 4 OTHER TIMES SINCE THEN. I LIVE IN A RURAL AREA, WHEN THE LIGHTS GO OUT THERE ARE NO STREET LIGHTS AROUND TO ILLUMINATE THE ROADWAY. I HAVE HAD 2 NEAR CRASHES DUE TO THE DARKNESS OF THE AREA IN WHICH I WAS TRAVELING. THERE ARE NO CODES BEING THROWN WHEN THIS OCCURS, NO WARNINGS, THE LIGHTS JUST GO OUT. UNABLE TO LOCATE FAILURE POINT. HIGH BE… Look up ODI 10356377 at NHTSA ↗
Fuel/Propulsion System	90,558–168,227 mi	96,000 mi	7	ODI 10473288 · 96,000 mi I JUST GASED THE CHEVROLET TRAILBLAZER AND WAS DRIVING DOWN THE ROAD AND WE COULD SMELL GAS DID NOT THINK MUCH OF IT BECAUSE WE JUST GOT GAS THEN THE CHECK ENGINE LIGHT CAME ON IT WAS A PO442 CODE EVAPORATIVE EMISSION CONTROL SMALL LEAK DETECTED SO I HAVE BEEN SMELLING GAS OFF AND ON AND KEEP GETTING THE PO442 CODE. SO I GO BUY A VENT VALVE SOLENOID AND PUT IT ON CLEAR THE CODE I NOTICE GAS AROUND THE INTAKE PIPE ON THE GAS TANK SO I TAKE A CLOSER LOOK AND ITS BROKE HALF WAY AROUND THE FILLER NECK AND THIS IS A RECALL ON CERTAIN VIN #S BUT MINE… Look up ODI 10473288 at NHTSA ↗ ODI 10477964 · 52,582 mi I WAS DRIVING DOWN THE ROAD WHEN I RAN OUT OF GAS. IT STILL SHOWED OVER 100 MILES LEFT ON THE GAUGE. THAT WAS ABOUT 3 MONTHS AFTER I PURCHASED THE VEHICLE. ABOUT TWO MONTHS LATER, I HAD THE SAME PROBLEM. I STARTED KEEPING THE GAS ON 3/4 OF A TANK AT ALL TIMES TO MAKE SURE THERE WAS FUEL IN IT. THE PROBLEM KEPT HAPPENING. TODAY, IT WAS ON 200+ MILES AND I RAN OUT. THIS IS RIDICULOUS! DO I REALLY HAVE TO KEEP TRACK OF HOW MANY MILES I PUT ON IT SO I KNOW WHEN I NEED TO REFILL? *TR Look up ODI 10477964 at NHTSA ↗ ODI 10497980 · 95,115 mi DUE TO A SERVICE ENGINE SOON WARNING LIGHT AND SMELLING GAS INSIDE MY VEHICLE, I TOOK MY VEHICLE TO MY LOCAL MECHANIC. HE STATED THERE WAS A CRACK IN THE NECK OF MY FUEL TANK. THE TANK NEEDS TO BE REPLACED. HE ALSO STATED THAT THIS IS A COMMON PROBLEM WITH TRAILBLAZERS. I THEN TOOK THE VEHICLE TO THE GM DEALER WHERE IT WAS PURCHASED. THEIR INITIAL DIAGNOSIS WAS THE FUEL CAP NEEDED TO BE REPLACED. AT THAT POINT I ASKED THEM TO CHECK FOR A CRACK. THEY DID AND VERIFIED THERE IS A CRACK. I MENTIONED GM CAMPAIGN 07099A - A RECALL FOR TRAILBLAZER EXT… Look up ODI 10497980 at NHTSA ↗
Vehicle Speed Control	39,750–62,625 mi	53,660 mi	8	ODI 10190536 · 43,000 mi PULLING INTO TRAFFIC FLOW FROM A STOP TO 45 MPH WITHIN A SHORT DISTANCE THE SPEEDOMETER ON MY WIFE'S 2004 CHEVROLET TRAILBLAZER INDICATED I WAS DOING 75 MPH. CONTINUING AT THE TRAFFIC FLOW SPEED OF ABOUT 45 WITH SLIGHT SLOWDOWNS AND SPEEDUPS FOR APPROXIMATELY 1.5 MILES THE SPEEDOMETER CLIMBED TO 85 MPH. WHEN I CAME TO A STOP IT WENT TO 80 MPH. THEN, ACCELERATING TO 35 MPH, IT NOW READ 105 MPH. WHEN I REACHED MY DESTINATION AND SHUT OFF THE TRUCK IT WENT TO 80 MPH NOT 0. TRUCK HAS 43,000 MILES ON IT. *AK Look up ODI 10190536 at NHTSA ↗ ODI 10252903 · 56,000 mi AS I WAS DRIVING DOWN THE ROAD THE SPEEDOMETER QUIT WORKING. TR Look up ODI 10252903 at NHTSA ↗ ODI 10257515 · 51,320 mi THE SPEEDOMETER STICKS AND DOES NOT GIVE ACCURATE READINGS OF SPEED (I.E. 70MPH WHEN STOPPED AT TRAFFIC LIGHT). THIS BEGAN TODAY AND HAS NOT CORRECTED ITSELF. THERE ARE SERIOUS POTENTIAL CONSEQUENCES OF THIS PROBLEM AS DRIVERS WILL NOT BE ABLE TO KNOW THEIR TRUE SPEED. NOTHING HAS BEEN DONE YET TO CORRECT THE FAILURE. RESEARCH HAS SHOWN AVERAGE PRICE OF REPAIR TO BE AROUND $450.00. *TR Look up ODI 10257515 at NHTSA ↗
Engine And Engine Cooling:Exhaust System	62,321–120,000 mi	70,000 mi	5	ODI 10263221 · 70,000 mi TICKING NOISE FROM ENGINE HAS BEEN DIAGNOSED AS A CRACKED EXHAUST MANIFOLD. THIS SHOULD BE COVERED BY GM AS A WARRANTY ITEM SINCE THERE HAVE BEEN SO MANY EXHAUST MANIFOLD FAILURES RELATED TO THE 4.2 LITER SIX CYLINDER ENGINE. *TR Look up ODI 10263221 at NHTSA ↗ ODI 10298356 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG MAKING THE MANIFOLD GET TO HOT AND THEREFORE LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $319.50 & HAVING IT BACK FOR A MONTH & DRIVING IT 3 TIMES MY SPEEDOMETER WENT HAYWIRE REGISTERING A SITTING STILL SPEED OF 45 MPH. ONCE AGAIN … Look up ODI 10298356 at NHTSA ↗ ODI 10298357 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG THEREFORE THE EXHAUST MANIFOLD WASN'T PROPERLY TORQUE/TIGHTENED WHICH MADE THE MANIFOLD VIBRATE UNTIL IT BROKE AND PRIOR TO ITS BREAKING IT LEAKED THE MANIFOLD BECOMES LOOSE AND THAT LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $31… Look up ODI 10298357 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	Campaigns announced	Examples
2024-10	None	No examples available for this selection.
2024-11	None	No examples available for this selection.
2024-12	None	No examples available for this selection.
2025-01	None	No examples available for this selection.
2025-02	None	No examples available for this selection.
2025-03	None	No examples available for this selection.
2025-04	None	No examples available for this selection.
2025-05	None	No examples available for this selection.
2025-06	None	No examples available for this selection.
2025-07	None	No examples available for this selection.
2025-08	None	No examples available for this selection.
2025-09	None	No examples available for this selection.
2025-10	None	No examples available for this selection.
2025-11	None	No examples available for this selection.
2025-12	None	No examples available for this selection.
2026-01	None	No examples available for this selection.
2026-02	None	No examples available for this selection.
2026-03	None	No examples available for this selection.
2026-04	None	No examples available for this selection.
2026-05	None	No examples available for this selection.
2026-06	None	No examples available for this selection.
2026-07	None	No examples available for this selection.
2026-08	None	No examples available for this selection.
2026-09 (partial)	None	No examples available for this selection.

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.

No complete months meet the spike thresholds for this selection.

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

2004: 36 complaints · 2006: 26 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2004	6	16	36
2006	4	9	26

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2004	259	0	2
2006	189	0	0

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	Electrical System	Electrical System: Instrument Cluster/Panel	Fuel System, Gasoline	Power Train:Automatic Transmission	Exterior Lighting	Fuel/Propulsion System	Vehicle Speed Control	Engine And Engine Cooling:Exhaust System
Electrical System	—	2 ODI 10416586 · 81,524 mi THE INSTRUMENT CLUSTER STOPPED WORKING, ONLY THE TEMP GAUGE AND THE FUEL GAUGE WORKS. THE SPEEDOMETER, TACHOMETER, OIL PRESSURE GAUGES DO NOT WORK. I BELIEVE GENERAL MOTORS NEEDS TO ISSUE A RECALL ON THIS AS THIS IS A COMMON PROBLEM WITH THESE VEHICLES. *KB Look up ODI 10416586 at NHTSA ↗ ODI 10465250 THE ELECTRICAL SYSTEM ON MY 2004 TRAILBLAZER EXT IS NOT OPERATING PROPERLY. THE TACHOMETER DOESN'T REGISTER, NOR DOES THE BATTERY GAUGE AND UNCERTAIN IF THE READING ON THE OIL GAUGE IS ACCURATE. THE FUEL GAUGE IS NOT OPERABLE, THE NEEDLE IS EITHER PASS E(EMPTY) OR PASS F (FULL), I'M CONSTANTLY RE-FUELING FOR FEAR OF RUNNING OUT OF GAS. WHEN FIRST STARTING THE ENGINE, THE SPEED INDICATOR MIGHT REGISTER CORRECTLY, BUT THEN IT FALLS BELOW 0 MPH WHILE TRAVELING SPEEDS OF 35 TO 55 MPH AND OTHER TIMES IT MAY INDICATE SPEEDS IN EXCESS OF 100 MPH. PROB… Look up ODI 10465250 at NHTSA ↗	3 ODI 10375968 · 80,000 mi 1. FUEL TANK FAILURE, WITH GAS SMELL AFTER FILL UP. 2. SPEEDOMETER STOPPED WORKING 3. TEMPERATURE GAGE STOPPED WORKING Look up ODI 10375968 at NHTSA ↗ ODI 10515530 · 103,000 mi WE WERE DOING OUR NORMAL FILL-UP (TRUCK WAS OFF) AND AFTER WE FILLED IT UP & TURNED IT OVER, THE FUEL GAUGE SHOT WAY OVER THE 'FULL' MARK. EVERY TIME WE TURNED THE VEHICLE ON, THE FUEL GAUGE WAS READING DIFFERENTLY, I HAVE NO IDEA HOW MANY TIMES IT WAS RIGHT. THE OIL PRESSURE AND BATTERY CHARGE GAUGE HAVE ALSO BEEN GIVING FALSE/SPORADIC READINGS AS WELL. AFTER MUCH SEARCHING, I FOUND THE ROOT CAUSE OF THIS TO BE A VERY COMMON PROBLEM NOT ONLY IN THE TRAILBLAZERS BUT THE TAHOES AND SEVERAL OTHER OF THEIR VEHICLES (THE INSTRUMENT CLUSTERS ARE … Look up ODI 10515530 at NHTSA ↗ ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. *TR Look up ODI 10576687 at NHTSA ↗	2 ODI 10149632 · 24,100 mi FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,… Look up ODI 10149632 at NHTSA ↗ ODI 10236334 · 46,069 mi AUTOMATIC TRANSMISSION SHIFTED OUT OF THIRD AND WOULD NOT SHIFT BACK WHILE I WAS ON THE FREEWAY. DEALER SAID A TRANSMISSION FLUSH AND FLUID CHANGE WOULD FIX IT. AFTER PERFORMING FLUSH DEALER TRANSMISSION WAS SHOT AND NEEDED REPLACEMENT. INSTRUMENT CLUSTER FUNCTIONING INTERMITTENTLY, SPEEDOMETER WORKS AT FIRST AND THEN SLOWLY GOES DOWN TO ZERO. *TR Look up ODI 10236334 at NHTSA ↗	3 ODI 10416644 THE RPM GAUGE, BATTERY GAUGE AND THE FUEL GAUGE STOPPED WORKING. FIRST THE RPM GAUGE STOPPED AND THEN ABOUT A YEAR LATER THE BATTERY GAUGE STOPPED AND LAST WAS THE FUEL GAUGE THAT STOPPED. THE FUEL GAUGE STOPPED WORKING JUST A COUPLE OF WEEKS AFTER THE BATTERY GAUGE. I AM ALSO HAVING PROBLEMS WITH THE DAYTIME RUNNING LIGHTS NOT STAYING ON PERIODICALLY. THE DAYTIME RUNNING LIGHTS WILL GO OUT ABOUT TWICE A YEAR AND MAINLY AT NIGHT. KB Look up ODI 10416644 at NHTSA ↗ ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗ ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. TR Look up ODI 10576687 at NHTSA ↗	0	2 ODI 10268522 · 63,000 mi ON FEBRUARY 7, 2009, WE WERE DRIVING ON THE INTERSTATE. WHEN APPROACHING TRAFFIC I TOOK THE VEHICLE OFF OF CRUISE AND BEGAN TO SLOW DOWN. HOWEVER, THE SPEEDOMETER DID NOT MOVE. AFTER THAT, EVERYTIME I BEGAN TO ACCELERATE, THE SPEEDOMETER WOULD NOT MOVE. EVERYTIME I START THE CAR IT DROPS 5 MPH, BUT WHEN YOU USE CRUISE OR DO A CONSTANT SPEED, IT STICKS AGAIN. WE ARE GETTING READY TO GO ON A BIG FAMILY VACATION AND DO NOT FEEL SAFE TAKING MY FAMILY IN A VEHICLE THAT YOU DON'T KNOW HOW FAST YOU ARE GOING. MY MECHANIC IS REPLACING THE CLUSTER… Look up ODI 10268522 at NHTSA ↗ ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗	3 ODI 10298356 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG MAKING THE MANIFOLD GET TO HOT AND THEREFORE LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $319.50 & HAVING IT BACK FOR A MONTH & DRIVING IT 3 TIMES MY SPEEDOMETER WENT HAYWIRE REGISTERING A SITTING STILL SPEED OF 45 MPH. ONCE AGAIN … Look up ODI 10298356 at NHTSA ↗ ODI 10298357 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG THEREFORE THE EXHAUST MANIFOLD WASN'T PROPERLY TORQUE/TIGHTENED WHICH MADE THE MANIFOLD VIBRATE UNTIL IT BROKE AND PRIOR TO ITS BREAKING IT LEAKED THE MANIFOLD BECOMES LOOSE AND THAT LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $31… Look up ODI 10298357 at NHTSA ↗ ODI 10354710 · 120,000 mi CHECK ENGINE LIGHT - FOR OVER ONE YEAR NOW, AND 4 VARIOUS MECHANICS, NO ONCE CAN FIGURE OUT WHY MY CHECK ENGINE LIGHT COMES ON. I HAVE REPLACED TWO AIR SENSORS (ACTUALLY 3 - ONE WAS BAD)... I HAVE SPENT CLOSE TO $1,000 TO GET THIS FIXED - BUT THE DAM LIGHT CONTINUES TO GO ON (INTERMITTENTLY) SOMETIMES IT'S ON FOR A MONTH - OFF A DAY - ON TWO WEEKS - THERE IS NO PATTERN. THE LAST TIME THE LIGHT CAME ON, MY CAR BEGAN STALLING IN TRAFFIC AND STOP SIGNS. LAST MECHANIC SPENT 5 HOURS TRACING ALL THE CODES BACK - NOTHING. NEXT DAY HAD ANOTHER MECH… Look up ODI 10354710 at NHTSA ↗
Electrical System: Instrument Cluster/Panel	2 ODI 10416586 · 81,524 mi THE INSTRUMENT CLUSTER STOPPED WORKING, ONLY THE TEMP GAUGE AND THE FUEL GAUGE WORKS. THE SPEEDOMETER, TACHOMETER, OIL PRESSURE GAUGES DO NOT WORK. I BELIEVE GENERAL MOTORS NEEDS TO ISSUE A RECALL ON THIS AS THIS IS A COMMON PROBLEM WITH THESE VEHICLES. *KB Look up ODI 10416586 at NHTSA ↗ ODI 10465250 THE ELECTRICAL SYSTEM ON MY 2004 TRAILBLAZER EXT IS NOT OPERATING PROPERLY. THE TACHOMETER DOESN'T REGISTER, NOR DOES THE BATTERY GAUGE AND UNCERTAIN IF THE READING ON THE OIL GAUGE IS ACCURATE. THE FUEL GAUGE IS NOT OPERABLE, THE NEEDLE IS EITHER PASS E(EMPTY) OR PASS F (FULL), I'M CONSTANTLY RE-FUELING FOR FEAR OF RUNNING OUT OF GAS. WHEN FIRST STARTING THE ENGINE, THE SPEED INDICATOR MIGHT REGISTER CORRECTLY, BUT THEN IT FALLS BELOW 0 MPH WHILE TRAVELING SPEEDS OF 35 TO 55 MPH AND OTHER TIMES IT MAY INDICATE SPEEDS IN EXCESS OF 100 MPH. PROB… Look up ODI 10465250 at NHTSA ↗	—	0	1 ODI 10157968 · 39,000 mi TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. *JB Look up ODI 10157968 at NHTSA ↗	0	0	0	0
Fuel System, Gasoline	3 ODI 10375968 · 80,000 mi 1. FUEL TANK FAILURE, WITH GAS SMELL AFTER FILL UP. 2. SPEEDOMETER STOPPED WORKING 3. TEMPERATURE GAGE STOPPED WORKING Look up ODI 10375968 at NHTSA ↗ ODI 10515530 · 103,000 mi WE WERE DOING OUR NORMAL FILL-UP (TRUCK WAS OFF) AND AFTER WE FILLED IT UP & TURNED IT OVER, THE FUEL GAUGE SHOT WAY OVER THE 'FULL' MARK. EVERY TIME WE TURNED THE VEHICLE ON, THE FUEL GAUGE WAS READING DIFFERENTLY, I HAVE NO IDEA HOW MANY TIMES IT WAS RIGHT. THE OIL PRESSURE AND BATTERY CHARGE GAUGE HAVE ALSO BEEN GIVING FALSE/SPORADIC READINGS AS WELL. AFTER MUCH SEARCHING, I FOUND THE ROOT CAUSE OF THIS TO BE A VERY COMMON PROBLEM NOT ONLY IN THE TRAILBLAZERS BUT THE TAHOES AND SEVERAL OTHER OF THEIR VEHICLES (THE INSTRUMENT CLUSTERS ARE … Look up ODI 10515530 at NHTSA ↗ ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. *TR Look up ODI 10576687 at NHTSA ↗	0	—	0	1 ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. *TR Look up ODI 10576687 at NHTSA ↗	0	0	0
Power Train:Automatic Transmission	2 ODI 10149632 · 24,100 mi FULL DESTRUCTION BECAUSE OF FIRE I WAS ON THE WAY BACK FROM A LONG TRIP IN SOUTHERN CHILE (UP TO USHUAIA) OVER THE "CARRETERA AUSTRAL" AND, AFTER ABOUT 9'000 KM DRIVE WITHOUT ANY PROBLEM, I SAW A WHITE SMOKE BACK MY VEHICLE. OIL PRESSURE: NORMAL, MOTOR TEMPERATURE: NORMAL. THIS MEANT IMMEDIATE STOP ALONG THE "RUTA 40 NORTE" IN ARGENTINA (ABOUT 100 KM NORTH OF BARILOCHE, ON THE WAY TO NEUQU). WHILE STOPPING, I FELT THE BRAKE PEDAL JUST GOING WITHOUT IMMEDIATE REACTION BUT THE PRESSION CAME BACK. WHILE BRINGING THE GEAR SHIFT TO POSITION PARKING,… Look up ODI 10149632 at NHTSA ↗ ODI 10236334 · 46,069 mi AUTOMATIC TRANSMISSION SHIFTED OUT OF THIRD AND WOULD NOT SHIFT BACK WHILE I WAS ON THE FREEWAY. DEALER SAID A TRANSMISSION FLUSH AND FLUID CHANGE WOULD FIX IT. AFTER PERFORMING FLUSH DEALER TRANSMISSION WAS SHOT AND NEEDED REPLACEMENT. INSTRUMENT CLUSTER FUNCTIONING INTERMITTENTLY, SPEEDOMETER WORKS AT FIRST AND THEN SLOWLY GOES DOWN TO ZERO. *TR Look up ODI 10236334 at NHTSA ↗	1 ODI 10157968 · 39,000 mi TRANSMISSION SHIFTS HARD FROM 1ST TO 2ND, SOMETIMES WHEN AT A STOP IT STALLS BEFORE TAKING OFF, SOMETIMES RPM BOTTOMS OUT. 4 WHEEL DRIVE ONLY USED ABOUT 3 OR 4 TIMES, EACH TIME IT STALLED BEFORE GOING INTO 4 WHEEL THEN WOULD NOT COME OUT OF 4 WHEEL FOR ABOUT 2 OR 3 MINUTES. *JB Look up ODI 10157968 at NHTSA ↗	0	—	0	0	0	0
Exterior Lighting	3 ODI 10416644 THE RPM GAUGE, BATTERY GAUGE AND THE FUEL GAUGE STOPPED WORKING. FIRST THE RPM GAUGE STOPPED AND THEN ABOUT A YEAR LATER THE BATTERY GAUGE STOPPED AND LAST WAS THE FUEL GAUGE THAT STOPPED. THE FUEL GAUGE STOPPED WORKING JUST A COUPLE OF WEEKS AFTER THE BATTERY GAUGE. I AM ALSO HAVING PROBLEMS WITH THE DAYTIME RUNNING LIGHTS NOT STAYING ON PERIODICALLY. THE DAYTIME RUNNING LIGHTS WILL GO OUT ABOUT TWICE A YEAR AND MAINLY AT NIGHT. KB Look up ODI 10416644 at NHTSA ↗ ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗ ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. TR Look up ODI 10576687 at NHTSA ↗	0	1 ODI 10576687 · 83,000 mi LIGHTS STARTED FLASHING, GAS GAUGE WENT TO EMPTY, CAR DIED. RESTARTED DROVE 1/4 MILE DIED. STEREO SYSTEM COMPLETELY FAILED (WHOLE UNIT). KEEPS POPPING CIRCUITS CHANGED OUT STILL DOING. CANNOT SHUT OFF HEAT DUE TO BANGING SOUND. CAR SPEEDS UP AND DOWN ON OWN. CANNOT READ GAS GAUGE CORRECTLY, NOT SURE HOW FULL TANK IS. *TR Look up ODI 10576687 at NHTSA ↗	0	—	0	1 ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗	0
Fuel/Propulsion System	0	0	0	0	0	—	0	0
Vehicle Speed Control	2 ODI 10268522 · 63,000 mi ON FEBRUARY 7, 2009, WE WERE DRIVING ON THE INTERSTATE. WHEN APPROACHING TRAFFIC I TOOK THE VEHICLE OFF OF CRUISE AND BEGAN TO SLOW DOWN. HOWEVER, THE SPEEDOMETER DID NOT MOVE. AFTER THAT, EVERYTIME I BEGAN TO ACCELERATE, THE SPEEDOMETER WOULD NOT MOVE. EVERYTIME I START THE CAR IT DROPS 5 MPH, BUT WHEN YOU USE CRUISE OR DO A CONSTANT SPEED, IT STICKS AGAIN. WE ARE GETTING READY TO GO ON A BIG FAMILY VACATION AND DO NOT FEEL SAFE TAKING MY FAMILY IN A VEHICLE THAT YOU DON'T KNOW HOW FAST YOU ARE GOING. MY MECHANIC IS REPLACING THE CLUSTER… Look up ODI 10268522 at NHTSA ↗ ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗	0	0	0	1 ODI 10477097 · 120,000 mi ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVE… Look up ODI 10477097 at NHTSA ↗	0	—	0
Engine And Engine Cooling:Exhaust System	3 ODI 10298356 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG MAKING THE MANIFOLD GET TO HOT AND THEREFORE LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $319.50 & HAVING IT BACK FOR A MONTH & DRIVING IT 3 TIMES MY SPEEDOMETER WENT HAYWIRE REGISTERING A SITTING STILL SPEED OF 45 MPH. ONCE AGAIN … Look up ODI 10298356 at NHTSA ↗ ODI 10298357 · 62,321 mi I OWN A 2004 CHEVROLET TRAILBLAZER EXT. TOOK THE VEHICLE IN OCTOBER 2009 FOR A OIL CHANGE & A EXHAUST LEAK WAS TOLD THE EXHAUST MANIFOLD NEEDED TO BE REPLACED, AFTER SEARCHING ON THE INTERNET FOUND OUT IT IS A KNOWN PROBLEM THAT GM WHEN MANUFACTURING THE VEHICLE USED BOLTS THAT WERE TO LONG THEREFORE THE EXHAUST MANIFOLD WASN'T PROPERLY TORQUE/TIGHTENED WHICH MADE THE MANIFOLD VIBRATE UNTIL IT BROKE AND PRIOR TO ITS BREAKING IT LEAKED THE MANIFOLD BECOMES LOOSE AND THAT LEADS TO IT CRACKING. AFTER HAVING THE VEHICLE REPAIRED AT THE COST OF $31… Look up ODI 10298357 at NHTSA ↗ ODI 10354710 · 120,000 mi CHECK ENGINE LIGHT - FOR OVER ONE YEAR NOW, AND 4 VARIOUS MECHANICS, NO ONCE CAN FIGURE OUT WHY MY CHECK ENGINE LIGHT COMES ON. I HAVE REPLACED TWO AIR SENSORS (ACTUALLY 3 - ONE WAS BAD)... I HAVE SPENT CLOSE TO $1,000 TO GET THIS FIXED - BUT THE DAM LIGHT CONTINUES TO GO ON (INTERMITTENTLY) SOMETIMES IT'S ON FOR A MONTH - OFF A DAY - ON TWO WEEKS - THERE IS NO PATTERN. THE LAST TIME THE LIGHT CAME ON, MY CAR BEGAN STALLING IN TRAFFIC AND STOP SIGNS. LAST MECHANIC SPENT 5 HOURS TRACING ALL THE CODES BACK - NOTHING. NEXT DAY HAD ANOTHER MECH… Look up ODI 10354710 at NHTSA ↗	0	0	0	0	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

6 patterns with matching reports.

Stalling or loss of power

14 mentions · 5.4% of complaints

Median mileage: 45,000 mi (11 usable records).

ODI 10157968 · 39,000 mi

Look up ODI 10157968 at NHTSA ↗

ODI 10160600 · 24,000 mi

Look up ODI 10160600 at NHTSA ↗

ODI 10166212

(1) FUEL SENSOR WENT BAD ON MY '04 CHEVY TRAILBLAZER EXT LS 4WD 4.2 LITER V6 ENGINE WHICH HAS (26,000 MILES ON IT - EXCELLENT CONDITION), THEREBY (2) CAUSING THE CATALYTIC CONVERTER TO BECOME CONGESTED CAUSING LOSS OF POWER FOR USE AND TOWING ON THE VEHICLE. (3) TOLD BY THE DEALER WHERE VEHICLE PURCHASED THAT THIS ITEM IS NOT AVAILABLE FOR CONSUMER USE BY GM PARTS AND SERVICE. TOLD I WOULD HAVE TO WAIT UP TO 3 MONTHS FOR ITEM TO BE AVAILABLE FOR PUBLIC RELEASE. THIS IS NOT ACCEPTABLE ON A LEASED VEHICLE. PAYING TO NOT BE ABLE TO USE VEHICLE TO …

Look up ODI 10166212 at NHTSA ↗

Matching rule

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

Warning lights and dashboard alerts

13 mentions · 5.0% of complaints

Median mileage: 95,058 mi (8 usable records).

ODI 10174495 · 1,000 mi

2004 CHEVY TRAILBLAZER. INTERMITTENT ENGINE STALLING SINCE NEW. MANY SERVICE VISITS TO CHEVY DEALERS TO FIX, HOWEVER MECHANICS STUMPED. LOCAL GAS STATION MECHANIC FOUND THE PROBLEM HAVING TO DO WITH COMPONENTS IN THE EMISSION CONTROL / VAPOR RECOVERY SYSTEM. NOW CHEVY NEEDS TO FIGURE OUT THE CURE. IN THE MEANTIME I GET TO DRIVE AROUND WITH THE "CHECK ENGINE" LIGHT ON. I GUESS THIS IS BETTER THAN BEING CRASHED BECAUSE MY CAR STALLED IN AN INTERSECTION OR ON THE HIGHWAY. CHEVY MECHANICS AND ENGINEERS NEED TO GET THE "DUH" AWARD. VERY BAD C…

Look up ODI 10174495 at NHTSA ↗

ODI 10262942

I HAVE A 2004 CHEVY TRAILBLAZER EXTENDED SUV. MY CHECK ENGINE LIGHT HAS CONTINUOUSLY FLASH ON AND OFF SINCE HAVING THE TRUCK ONLY SIX MONTHS. IT HAS CONTINUED TO DO THIS FOR THE LIFE OF THE CAR AT ALMOST 70,000 MILES. ALSO, MY SPEEDOMETER NOW WORKS ONLY WHEN IT WANTS TO. AT FIRST WE THOUGHT IT WAS BECAUSE OF THE COLD WEATHER, NOW IT IS ALMOST 70 DEGREES AND WE HAVE THE SAME PROBLEM. SOUNDS AS IF THIS IF VERY COMMON IN THESE MODELS. SOMEONE NEEDS TO FIND A WAY TO COMPENSATE OWNERS FOR THESE COSTLY REPAIRS. *TR

Look up ODI 10262942 at NHTSA ↗

ODI 10354710 · 120,000 mi

CHECK ENGINE LIGHT - FOR OVER ONE YEAR NOW, AND 4 VARIOUS MECHANICS, NO ONCE CAN FIGURE OUT WHY MY CHECK ENGINE LIGHT COMES ON. I HAVE REPLACED TWO AIR SENSORS (ACTUALLY 3 - ONE WAS BAD)... I HAVE SPENT CLOSE TO $1,000 TO GET THIS FIXED - BUT THE DAM LIGHT CONTINUES TO GO ON (INTERMITTENTLY) SOMETIMES IT'S ON FOR A MONTH - OFF A DAY - ON TWO WEEKS - THERE IS NO PATTERN. THE LAST TIME THE LIGHT CAME ON, MY CAR BEGAN STALLING IN TRAFFIC AND STOP SIGNS. LAST MECHANIC SPENT 5 HOURS TRACING ALL THE CODES BACK - NOTHING. NEXT DAY HAD ANOTHER MECH…

Look up ODI 10354710 at NHTSA ↗

Matching rule

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

Fuel smell or leak mentions

9 mentions · 3.4% of complaints

Median mileage: 91,558 mi (8 usable records).

ODI 10286726 · 60,000 mi

MY WIFE'S 2004 TRAILBLAZER EXT SERVICE ENGINE SOON LIGHT CAME ON IN LATE SEPTEMBER 2009. SHE HAD BEEN COMPLAINING OF A GASOLINE SMELL AFTER FILLING THE VEHICLE. I HAD THE OBDII CODE READ AND IT WAS CODE 0440 EVAPORATIVE FUEL SYSTEM - SMALL LEAK. I WAS TOLD TO REPLACE THE GAS CAP, AND IT DID NOT REMEDY THE PROBLEM. I THEN FOUND OUT THAT THE 2002-2004 TRAILBLAZER EXT HAD A KNOWN PROBLEM WITH THE GAS TANK FILLER NECKS DEVELOPING CRACKS AND CAUSING THE SES LIGHT TO COME ON AND GAS TO LEAK WHEN THE TANK IS FILLED OR NEAR FULL. I CONTACTED CHEVRO…

Look up ODI 10286726 at NHTSA ↗

ODI 10375968 · 80,000 mi

1. FUEL TANK FAILURE, WITH GAS SMELL AFTER FILL UP. 2. SPEEDOMETER STOPPED WORKING 3. TEMPERATURE GAGE STOPPED WORKING

Look up ODI 10375968 at NHTSA ↗

ODI 10436772 · 88,000 mi

TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE THE VEHICLE WAS PARKED, THE CONTACT NOTICED A SIGNIFICANT AMOUNT OF FUEL LEAKING ONTO THE GROUND. THE CONTACT INSPECTED THE VEHICLE AND DISCOVERED THE FUEL TANK WOULD NEED TO BE REPLACED. THE MANUFACTURER ISSUED A VOLUNTARY RECALL PERTAINING TO THE FUEL TANK FILLER NECK. THE DEALER WAS NOTIFIED AND THEY STATED THE VIN WAS INELIGIBLE UNDER THE RECALL DEFECT. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 88,000.

Look up ODI 10436772 at NHTSA ↗

Matching rule

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

Steering assistance concerns

6 mentions · 2.3% of complaints

Median mileage: 142,000 mi (5 usable records).

ODI 10216567

TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT. UPON INSPECTION OF THE VEHICLE, THE CONTACT DISCOVERED THAT THE POWER STEERING HOSE HAD ABNORMAL WEAR AND WAS LEAKING. NHTSA CAMPAIGN ID NUMBER 05V455000 (STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS) WAS REFERENCED FOR THE 2006 MODELS, WHICH WERE EXPERIENCING THE SAME FAILURE. THE CURRENT MILEAGE WAS 60,000 AND THE FAILURE MILEAGE WAS UNKNOWN. UPDATED 03-04-08 *BF

Look up ODI 10216567 at NHTSA ↗

ODI 10256696 · 95,000 mi

POWER STEERING PUMP NEEDS REPLACED. OTHER SUV OWNERS HAVE TOLD ME THE SAME THING HAPPENED TO THEIR VEHICLE THAT HAD THE SAME PUMP. *TR

Look up ODI 10256696 at NHTSA ↗

ODI 10279797 · 53,434 mi

ON NOVEMBER 26 2007 TOOK MY CHEVY TRAILBLAZER 04 4 WHEEL DR. IN FOR STEERING WHEEL SHIMMY. COULD NOT DUPLICATE. ALSO C.D. CHANGER WILL NOT EJECT CD'S AND LOW BEAMS ON HEADLIGHTS NOT WORKING. REPAIRED HEADLIGHTS AND C.D. CHANGER. DID NOT FIX STEERING PROBLEM. ON JUNE 07 TOOK IN FOR MAJOR SERVICE WITH 33,000 MILES. ON DEC.8 2008 TOOK IN FOR STALLING WHEN COMING TO A STOP. COULD NOT DUPLICATE THE PROBLEM.THIS IS MY MAIN COMPLAINT, THE STALLING ON JAN.. 10 2009 TOOK IN FOR ERRATIC SPEEDOMETER WHICH WAS HAPPENING FOR ABOUT 3 MONTHS OFF AND O…

Look up ODI 10279797 at NHTSA ↗

Matching rule

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

Hard or delayed shifting

2 mentions · 0.8% of complaints

Median mileage: 37,000 mi (2 usable records).

ODI 10157968 · 39,000 mi

Look up ODI 10157968 at NHTSA ↗

ODI 10182929 · 35,000 mi

VEHICLE SWITCHING INTO 4WD/AWD ON ITS OWN - MALFUNCTION TOOK VEHICLE IN BECAUSE VEHICLE WAS TRYING TO SWITCH INTO AWD AND 4WD ON ITS OWN AT FREEWAY SPEEDS. WHEN THIS HAPPENS, ENTIRE VEHICLE JERKS WHEN SWITCHING (ON ITS OWN) FROM 2HI TO AWD. CHEVY SERVICE DEPARTMENT FOUND PROBLEM IN TRANSFER CASE MODULE. THEY REPLACED MODULE AND PROGRAM. VEHICLE 4WD MALFUNCTIONED AGAIN. VEHICLE TRYING TO SWITCH INTO 4WD AND AWD ON ITS OWN. TOOK VEHICLE BACK TO SERVICE DEPARTMENT. SERVICE DEPARTMENT REPLACED ENCODER MOTOR. VEHICLE IS STILL SWITCHING …

Look up ODI 10182929 at NHTSA ↗

Matching rule

Brake response concerns

1 mentions · 0.4% of complaints

Median mileage: 24,100 mi (1 usable records).

ODI 10149632 · 24,100 mi

Look up ODI 10149632 at NHTSA ↗

Matching rule