Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
880–25K
16325–50K
27450–75K
17675–100K
137100–150K
61150K+
899 reports with mileage · 182 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 627 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Exterior Lighting. Review the 101 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel System, Gasoline. Review the 93 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
56 crash reports31 fire reports47 injury reports
What owners actually said
1,081 reports
35,000 miles · Jun 13, 2007
Electrical System
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. SHE STATED THAT THE SPEEDOMETER AND THE GAS GAUGE WORKS INTERMITTENTLY. WHEN MAKING A RIGHT TURN SHE HEARS A HUMMING NOISE. THE DEALER STATED THAT THEY WERE UNABLE TO DUPLICATE THE PROBLEMS HOWEVER; THEY SUGGESTED THAT THE INSTRUMENT PANEL BE REPLACED. THE DEALER HAS NOT MADE…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. SHE STATED THAT THE SPEEDOMETER AND THE GAS GAUGE WORKS INTERMITTENTLY. WHEN MAKING A RIGHT TURN SHE HEARS A HUMMING NOISE. THE DEALER STATED THAT THEY WERE UNABLE TO DUPLICATE THE PROBLEMS HOWEVER; THEY SUGGESTED THAT THE INSTRUMENT PANEL BE REPLACED. THE DEALER HAS NOT MADE THE REPLACEMENT. THE FAILURE MILEAGE WAS 35,000 AND THE CURRENT MILEAGE WAS 49,000.
NHTSA ODI #10193138
38,000 miles · Jun 11, 2007
Electrical System
INSTURMENT PANEL NOT WORKING PROPERLY. THE SPEEDOMOTER STARTED OUT SHOWING RANDOM SPEEDS AND NOWWA S PERMENANTLY STUCK AT 89 MPH NO MATTER IF THE CAWASS RUNNING OR NOT. THE RPM GAUGE ALSO DOID NOT MOVE. THIS SHOULD BE A RECALL, THERE APPEARSE DTO BE A LARGE PROBLEM WITH THIS ISSUE. *AK
NHTSA ODI #10192946
44,000 miles · Jun 1, 2007
Electrical System
2004 CHEVROLET TRAILBLAZER SPEEDOMETER IS MALFUNCTIONING. GIVES A 100 MPH READING WHEN GOING 60. SOMETIMES DOESN'T WORK AT ALL. I KNOW THERE TO BE THOUSANDS OF SIMILAR COMPLAINTS ABOUT GM SPEEDOMETERS. GM SHOULD RECALL THIS AND NOT BE AFRAID TO STAND BEHIND ITS PRODUCT. *TR
NHTSA ODI #10192253
65,000 miles · May 7, 2007
Electrical System
MOST DASHBOARD GAUGES FAILED ON THE 2004 CHEVROLET TRAILBLAZER. TOTAL LOSS OF FUEL GAUGE, AMP GAUGE, TEMPERATURE GAUGE AND OIL PRESSURE GAUGE. IN ADDITION TO THESE FAILURES ODOMETER DID NOT WORK PROPERLY. ALSO, OTHER DRIVER INFORMATION COMPUTER ITEMS DID NOT FUNCTION. ABS, PARKING BRAKE AND BATTERY LIGHTS ILLUMINATED. AFTE…
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MOST DASHBOARD GAUGES FAILED ON THE 2004 CHEVROLET TRAILBLAZER. TOTAL LOSS OF FUEL GAUGE, AMP GAUGE, TEMPERATURE GAUGE AND OIL PRESSURE GAUGE. IN ADDITION TO THESE FAILURES ODOMETER DID NOT WORK PROPERLY. ALSO, OTHER DRIVER INFORMATION COMPUTER ITEMS DID NOT FUNCTION. ABS, PARKING BRAKE AND BATTERY LIGHTS ILLUMINATED. AFTER A WHILE OF DRIVING ALL DASHBOARD FUNCTIONS RETURNED TO NORMAL. THIS HAS HAPPENED SEVERAL TIMES IN THE PAST FEW DAYS.
NHTSA ODI #10189952
44,000 miles · May 2, 2007
Vehicle Speed Control
2004 TRAILBLAZER. 45,000 MILES. SPEEDOMETER AND RPM GAUGE GOES UP AND DOWN, STICKING OR NOT MOVING AT ALL. *TR
NHTSA ODI #10189510
62,000 miles · May 2, 2007
Suspension
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHEN SHE STEERED THE VEHICLE SHE HEARD A GRINDING NOISE AND SOMETIMES FELT VIBRATION. THE FAILURE OCCURRED WHEN TURNING OR JUST SWITCHING LANES. SPEED WAS NOT A FACTOR. THE NOISES BEGAN THE FIRST WEEK OF APRIL 2007, AND BECAME MORE DISTINCT, CONSIS…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHEN SHE STEERED THE VEHICLE SHE HEARD A GRINDING NOISE AND SOMETIMES FELT VIBRATION. THE FAILURE OCCURRED WHEN TURNING OR JUST SWITCHING LANES. SPEED WAS NOT A FACTOR. THE NOISES BEGAN THE FIRST WEEK OF APRIL 2007, AND BECAME MORE DISTINCT, CONSISTENT, AND LOUD. ALSO, THE CONTACT ALSO STATED THAT THEREWAS NOW A PERIODIC RATTLING AND CLUNKING SOUND COMING FROM UNDER THE HOOD OF THE VEHICLE. THE CURRENT MILEAGE IS 62,400, AND FAILURE MILEAGE WAS 62,000. THE CONTACT HAD THE NAME OF THE DEALER WHERE THE VEHICLE WAS PURCHASED, BUT COULD NOT PROVIDE THE ADDRESS OR TELEPHONE NUMBER. *AK
NHTSA ODI #10189499
Mileage unknown · Apr 30, 2007
Wheels
2004 CHEVROLET TRAILBLAZER. CONSUMER WAS DRIVING 65-70-MPH ON THE HIGHWAY WHEN THE FRONT RIGHT TIRE BROKE OFF THE VEHICLE. *MC ALL SIX BOLTS WERE BROKEN WITH THE NUTS STILL SCREWED ONTO THE BOLTS.(OHIO TRAFFIC CRASH REPORT) *JB
NHTSA ODI #10190053
60,000 miles · Apr 30, 2007
Power Train
I HAVE A 2004 TRAILBLAZER. I HAD TAKEN IT TO THE DEALERSHIP SERVICE CENTER ON SEVERAL OCCASIONS BECAUSE OF ISSUES WITH IT. THE SERVICE ENGINE LIGHT CAME ON ALL THE TIME. IT WOULD REV UP THE RPMS FOR NO REASON AND MAKE A WEIRD SOUND. IT WOULD NOT GO INTO 4 -WHEEL DRIVE OR OUT OF IT LIKE IT IS SUPPOSED TO. AND OTHER THINGS.…
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I HAVE A 2004 TRAILBLAZER. I HAD TAKEN IT TO THE DEALERSHIP SERVICE CENTER ON SEVERAL OCCASIONS BECAUSE OF ISSUES WITH IT. THE SERVICE ENGINE LIGHT CAME ON ALL THE TIME. IT WOULD REV UP THE RPMS FOR NO REASON AND MAKE A WEIRD SOUND. IT WOULD NOT GO INTO 4 -WHEEL DRIVE OR OUT OF IT LIKE IT IS SUPPOSED TO. AND OTHER THINGS. I HAD IT CHECKED, AND THEY SAID IT WAS ALL FINE AND THEY COULDNT DUPLICATE THE ERRORS. HOWEVER, SUBSEQUENTLY, THE TRANSMISSION HAS GONE OUT 4 TIMES IN THE LAST 4 MONTHS. I HAVE HAD IT REPLACED 3 TIMES. IT IS NOW AT THE TRANSMISSION SHOP AND THEY STATE THAT THERE IS A PROBLEM WITH THE ENGINE HAS TOO MUCH TRAVEL TO IT FRONT TO REAR. THE CRANK SHAFT SPECIFICALLY WHICH IS ALLOWING THE TORQUE CONVERTER TO PULL AWAY FROM THE FRONT PUMP AND BREAK THE ROTAR ASSEMBLY IN THE FRONT PUMP OF THE TRANSMISSION. THIS IS GETTING EXPENSIVE AND FRUSTRATING. ARE THERE ANY OTHER PEOPLE WHO HAVE THE SAME ISSUES OR IS THERE AN ISSUE WITH THE CRANK SHAFT? COULD IT BE THE TRANSMISSION IS BUILT WRONG? THIS IS REDICULOUS!! I HAVE ONLY 70,000 MILES ON IT. WHY WOULD I BUY CHEVY PRODUCTS IF THEY CONTINUE TO FAIL AT SUCH LOW MILES. *AK
NHTSA ODI #10189308
41,000 miles · Apr 17, 2007
SteeringInjury
WHILE SLOWING FOR A STOPLIGHT THE VEHICLE COMPLETLY SHUT OFF INCLUDING THE STEERING. THE CAR SWERVED INTO ANOTHER CAR'S LANE. AFTER I STARTED IT AGAIN, AND IMMEDIATELY DROVE TO MCCOMB CHEVROLET. THEY SAID IT HAD SOMETHING TO DO WITH THE ELECTRONIC COMPUTER, AND RESET THE COMPUTER. THE SECOND TIME I WAS SLOWING TO GO AROUND A C…
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WHILE SLOWING FOR A STOPLIGHT THE VEHICLE COMPLETLY SHUT OFF INCLUDING THE STEERING. THE CAR SWERVED INTO ANOTHER CAR'S LANE. AFTER I STARTED IT AGAIN, AND IMMEDIATELY DROVE TO MCCOMB CHEVROLET. THEY SAID IT HAD SOMETHING TO DO WITH THE ELECTRONIC COMPUTER, AND RESET THE COMPUTER. THE SECOND TIME I WAS SLOWING TO GO AROUND A CURVE AND IT SHUT OFF AGAIN, AND THE VEHICLE WENT INTO A DITCH. MY DAUGHTER BUMBED HER HEAD ON THE SIDE DOOR. THIS TIME MCCOMB SAID THEY COULDN'T FIND ANYTHING WRONG ,BUT MAYBE IT WAS WATER IN THE FUEL LINE. THE THIRD TIME I WAS SLOWING AGAIN AROUND A CURVE AND IT SHUT OFF, AND VEERED OFF THE ROAD. I HAVE NOT CALLED MCCOMB AS OF YET. THIS WAS VERY ALARMING AND DANGEROUS. I AM NOW SCARED TO DRIVE IT ESPECIALLY WITH MY CHILDREN.*AK
NHTSA ODI #10188125
38,000 miles · Apr 2, 2007
Electrical System
MY SPEEDOMETER SOMETIMES READS ABOUT 20 MPH OFF THEN WON'T RESET WHEN I TURN THE VEHICLE OFF. IT JUST STAYS AT 20 MPH...THEN SOMETIMES IT DOES RESET AND WORKS FINE. I TOOK THE VEHICLE TO A CHEVY DEALERSHIP AND THEY SAID THAT SINCE THE PROBLEM WASN'T HAPPENING AT THE TIME I TOOK IT IN THEY COULDN'T DO ANYTHING EXCEPT RE-PROGRAM…
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MY SPEEDOMETER SOMETIMES READS ABOUT 20 MPH OFF THEN WON'T RESET WHEN I TURN THE VEHICLE OFF. IT JUST STAYS AT 20 MPH...THEN SOMETIMES IT DOES RESET AND WORKS FINE. I TOOK THE VEHICLE TO A CHEVY DEALERSHIP AND THEY SAID THAT SINCE THE PROBLEM WASN'T HAPPENING AT THE TIME I TOOK IT IN THEY COULDN'T DO ANYTHING EXCEPT RE-PROGRAM THE SPEEDO. THAT DIDN'T HELP, IT HAPPENED AGAIN AFTER THAT. *JB
ON CERTAIN TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FLASH IN A MANNER SIMILAR TO HAZARD WARNING, RATHER THAN FLASHING ON THE DESIRED SIDE ONLY.
Consequence & remedy
Consequence: THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTENTIALLY WARN OTHERS OF AN IMPAIRED VEHICLE OPERATING CONDITION INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE SUSPECT FLASHER MODULES WITH A NEW FLASHER MODULE DESIGNED WITH SEALED RELAYS AND MORE DURABLE CONTACT MATERIAL INSIDE OF THE RELAYS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2005. ISUZU BEGAN MAILING OWNER LETTERS ON AUGUST 4, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, ISUZU AT 1-800-255-6727, BUICK AT 1-866-608-8080, AND OLDSMOBILE AT 1-800-630-6537.
ON CERTAIN SPORT UTILITY VEHICLES, VIBRATION AND HEAT MAY CAUSE THE TAIL LAMP/STOP LAMP BULB TO LOOSEN IN ITS SOCKET. IF THIS OCCURS, THE BULB MAY FLICKER AND EVENTUALLY BECOME INOPERATIVE.
Consequence & remedy
Consequence: AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING VEHICLES, AND AN INOPERATIVE REAR TURN SIGNAL LAMP WILL NOT CONVEY THE DRIVER'S INTENTION TO TURN TO DRIVERS IN FOLLOWING VEHICLES. BOTH OF THESE FAILURES CAN INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, BUICK AT 1-866-608-8080, OR GMC AT 1-866-996-9463.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4
RQ17002 · Loss Of Headlights
Opened Apr 24, 2017 · Closed Mar 29, 2021
Status: closed (inferred from source dates) · Exterior Lighting:headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.
DURING THE COURSE OF THIS EA INVESTIGATION, ODI OBSERVED THAT THE MAJORITY OF THE COMPLAINTS (88%) AND WARRANTY CLAIMS (94%) WERE REPORTED FOR VEHICLES THAT ARE REGISTERED FOR USE IN THE SALT BELT REGION OF THE US.THIS AREA INCLUDES 20 STATES IN THE NORTHEAST, MID ATLANTIC AND THE MIDWEST REGIONS AND THE DISTRICT OF COLUMBIA.CONSUMERS IN THE SALT BELT REGION REPORTED TO ODI THAT THEY COULD SMELL FUEL VAPORS IN THEIR VEHICLES WHILE DRIVING.UPON FURTHER EXAMINATION OF THEIR VEHICLES, THEY DISCOVERED THAT FUEL VAPORS WERE COMING OUT OF THE TOP OF THE FUEL TANK. THIS CONDITION IS CAUSED BY CORROSION OF THE RETURN AND SENDER LINES OF THE FUEL PUMP MODULE.WATER AND ROAD SALT COLLECT ON TOP OF THE FUEL PUMP LEADING TO SMALL PINHOLES APPEARING ON THE FUEL LINES.FUEL MAY LEAK AND COLLECT ON TOP OF THE MODULE AND/OR SPILL ONTO THE GROUND.THE DATA EVALUATED UNDER THIS INVESTIGATION REFLECT A RELATIVELY LOW FREQUENCY OF OCCURRENCE THAT LARGELY ARISES IN SALT BELT STATES.GM HAS EXTENDED THE WARRANTY ON THE SUBJECT COMPONENT TO TEN YEARS OR 120,000 MILES.FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED AT THIS TIME; ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.FOR ADDITIONAL INFORMATION SELECT DOCUMENT SEARCH.
EA04021 · Brake Lamp Failure
Opened Aug 3, 2004 · Closed Nov 4, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
GM STATES THAT SOME BRAKE/TAIL LAMP BULBS CAN PREMATURELY BECOME INOPERATIVE DUE TO MALFUNCTIONING BRAKE/TAIL LAMP SOCKETS.ON MARCH 2, 2004, GM INITIATED A 6-YEAR/72,000 MILE SPECIAL POLICY FOR 989,487 SUBJECT VEHICLES TO INSPECT AND REPLACE THE REAR BRAKE/TAIL LAMP BULB SOCKET ASSEMBLIES.ON APRIL 4, 2004, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE04-032) BASED ON CONSUMER COMPLAINTS ALLEGING BRAKE LIGHTS NOT OPERATING WHEN THE BRAKE PEDAL IS DEPRESSED.ON AUGUST 3, 2004 ODI UPGRADED PE04-032 TO AN ENGINEERING ANALYSIS (EA04-021).BY LETTER DATED OCTOBER 27, 2004 GM NOTIFIED NHTSA THAT IT WILL CONDUCT A SAFETY RECALL (NHTSA # 04V527) COVERING SUBJECT VEHICLES THAT WERE NOT ALREADY REPAIRED UNDER GM'S SPECIAL POLICY.MY 2004 SUBJECT VEHICLES BUILT AFTER AUGUST 8, 2003 CONTAIN IMPROVED BRAKE LAMP ASSEMBLIES AND ARE NOT INCLUDED IN THE RECALL.GM DEALERS WILL INSTALL THE IMPROVED BRAKE LAMP ASSEMBLY ON SUBJECT VEHICLES BUILT ON AUGUST 8, 2003 AND EARLIER.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
PE04032 · Brake Lamp Failure
Opened Apr 6, 2004 · Closed Aug 3, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION ON MODEL YEAR (MY) 2002-04 CHEVROLET TRAILBLAZER VEHICLES.GM REPORTS THAT OTHER VEHICLES SHARING THIS PLATFORM AND BRAKE LAMP DESIGN ARE THE MY 2002-2004 CHEVROLET TRAILBLAZER EXT; GMC ENVOY, XL, XUV; OLDSMOBILE BRAVADA AND 2004 BUICK RAINIER.COMPLAINTS ALLEGE THAT THE REAR BRAKE LAMP DOES NOT OPERATE WHEN THE BRAKE PEDAL IS DEPRESSED.THERE IS NO INDICATION TO THE DRIVER FROM INSIDE THE VEHICLE THAT ONE OR MORE BRAKE LAMPS BULBS ARE NOT FUNCTIONING.GM FOUND THAT HEAT FROM THE BULB COULD DEFORM THE LAMP SOCKET, PRODUCE ELECTRICAL ARCING AND AN INOPERATIVE BULB.TO CORRECT THE CONDITION, GM CHANGED THE BULB TO A BULB THAT TRANSMITS LESS HEAT TO THE SOCKET AND CHANGED THE SOCKET TO A THERMOPLASTIC POLYMER TO IMPROVE THERMAL STABILITY.THESE CHANGES WERE IMPLEMENTED INTO PRODUCTION VEHICLES ON OCTOBER 1, 2003.GM IMPLEMENTED A SPECIAL POLICY BY NOTIFYING CONSUMERS THAT IF THEY SHOULD EXPERIENCE A BRAKE LAMP FAILURE TO GO TO THEIR GM DEALERSHIP TO HAVE THE CIRCUIT BOARD CONTAINING THE BRAKE LAMP REPLACED ALONG WITH NEW BULBS.THIS POLICY IS GOOD FOR THE FIRST 6 YEARS OR 72,000 MILES OF THE LIFE OF THE VEHICLE.ODI WILL UPGRADE THIS INVESTIGATION TO EA 04-021 AND INCLUDE THE ABOVE MENTIONED VEHICLES.
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