NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
193 reports139,000 miles · Nov 12, 2015
Electrical SystemVisibilityFire
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE THE VEHICLE WAS PARKED, THE FRONT PASSENGER SIDE WINDOW ERRONEOUSLY ROLLED DOWN AND AN ELECTRICAL BURNING ODOR WAS PRESENT INSIDE THE VEHICLE. WHILE INSPECTING THE VEHICLE, THE CONTACT DISCOVERED THAT THE WINDOW SWITCH WAS CHARRED AND MELTED. THE CAUSE OF THE FAILURE WAS N…
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TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE THE VEHICLE WAS PARKED, THE FRONT PASSENGER SIDE WINDOW ERRONEOUSLY ROLLED DOWN AND AN ELECTRICAL BURNING ODOR WAS PRESENT INSIDE THE VEHICLE. WHILE INSPECTING THE VEHICLE, THE CONTACT DISCOVERED THAT THE WINDOW SWITCH WAS CHARRED AND MELTED. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 139,000.
NHTSA ODI #10789880
90,000 miles · Nov 1, 2015
Electrical SystemService BrakesUnknown Or Other
I RECENTLY STARTED HAVING PROBLEMS, ONE BEING MY BRAKE LIGHTS DON'T ALWAYS WORK. I TOOK IT TO A LOCAL CHEVY DEALER AND WAS TOLD IT ALL HAD TO DO WITH AN ELECTRICAL PROBLEM AS IS IMPOSSIBLE TO FIX. SHOULDN'T MY VEHICLE BE RECALLED? I'M A SAFE DRIVER AND IT'S A BIT UPSETTING KNOWING THAT I DON'T KNOW IF AND WHEN MY BREAK LIGHTS A…
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I RECENTLY STARTED HAVING PROBLEMS, ONE BEING MY BRAKE LIGHTS DON'T ALWAYS WORK. I TOOK IT TO A LOCAL CHEVY DEALER AND WAS TOLD IT ALL HAD TO DO WITH AN ELECTRICAL PROBLEM AS IS IMPOSSIBLE TO FIX. SHOULDN'T MY VEHICLE BE RECALLED? I'M A SAFE DRIVER AND IT'S A BIT UPSETTING KNOWING THAT I DON'T KNOW IF AND WHEN MY BREAK LIGHTS ARE WORKING. ESPECIALLY WHEN I HAVE SMALL CHILDREN WITH ME. WE RECENTLY MOVED, AS MY HUSBAND WAS FOLLOWING ME, HE WAS THE ONE THAT NOTICED MY BRAKE LIGHTS WEREN'T WORKING.
NHTSA ODI #10787506
92,082 miles · Oct 17, 2015
Electrical System
ON )9/16/15, I WAS DRIVING MY 2008 CHEV TRAILBLAZER ON THE HIGHWAY AT 55MPH AND THE IGNITION SWITCH FAILED AND THE THE VEHICLE ROLLED TO A STOP. IT WOULD NOT START AGAIN AND WAS TOWED BY GLENN'S TOWING SERVICE FARIBAULT MN 55021 TO HARRY BROWN'S SERVICE CENTER FARIBAULT MN 55021. THEY REPLACED THE IGNITION SWITCH AND CHARGED $3…
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ON )9/16/15, I WAS DRIVING MY 2008 CHEV TRAILBLAZER ON THE HIGHWAY AT 55MPH AND THE IGNITION SWITCH FAILED AND THE THE VEHICLE ROLLED TO A STOP. IT WOULD NOT START AGAIN AND WAS TOWED BY GLENN'S TOWING SERVICE FARIBAULT MN 55021 TO HARRY BROWN'S SERVICE CENTER FARIBAULT MN 55021. THEY REPLACED THE IGNITION SWITCH AND CHARGED $389.25. I'M CONCERNED IF THEY PUT IN THE SAME SWITCH WITH A DEFECT OR ONE THAT HAS BEEN IMPROVED TO ELIMINATE THE DEFECT AS CHEVROLET HAS BEEN RECALLING IGNITION SWITCHES ON OTHER VEHICLES BUT NOT THE TRAILBLAZER. I WAS LUCKY I DIDN'T GET HIT WHEN THE TRUCK STOPPED.
NHTSA ODI #10783113
76,000 miles · Oct 7, 2015
Electrical System
THE DRIVER DOOR MODULE DOES NOT WORK WHEN IT RAINS. I TOOK THIS TO A DEALER AND AFTER THEY TESTED IT TOLD ME IT NEEDED TO BE REPLACED $500. FOR PART PLUS LABOR THAT THEY COULD NOT QUOTE. I CHECKED ON LINE TO FIND OUT IF GM HAD RECALL ON THESE VEHICLES AND FOUND THAT THEY DID 2004 - 2007 MINE IS A 2008 EXPERIENCES THE EXACT ISS…
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THE DRIVER DOOR MODULE DOES NOT WORK WHEN IT RAINS. I TOOK THIS TO A DEALER AND AFTER THEY TESTED IT TOLD ME IT NEEDED TO BE REPLACED $500. FOR PART PLUS LABOR THAT THEY COULD NOT QUOTE. I CHECKED ON LINE TO FIND OUT IF GM HAD RECALL ON THESE VEHICLES AND FOUND THAT THEY DID 2004 - 2007 MINE IS A 2008 EXPERIENCES THE EXACT ISSUES THAT THE OTHERS HAD BUT GM CAN'T HELP ME BECAUSE MY VIN # IS NOT LISTED. WHY DID GM NOT TRY TO HELP ME WITH THIS ISSUE? WHEN OVER 184,000 VEHICLES WHERE RECALLED FOR THIS ISSUE. WHAT DO I NEED TO DO TO SEE IF I CAN GET HELP TO REPLACE THIS? I WOULDN'T ASK BUT I FEEL ITS ONLY RIGHT TO REPLACE IT AFTER ALL THOSE VEHICLES WHERE RECALLED AND MINE IS DOING THE EXACT SAME THING. IT HAPPENS EVERY TIME IT RAINS APPARENTLY IT LEAKS IN THE DOOR SOME HOW AND IT GETS WET AND WANT WORK IT CONTROLS SEAT HEAT, ALL DOOR LOCKS AND WINDOWS AND DRIVER WINDOW. I PURCHASED THIS VEHICLE USED IN 2014 AND IT HAS DONE IT EVERY SINCE I HAVE OWNED IT BY THE TIME IT GETS BACK TO THE DEALER ITS WORKING AGAIN. USUALLY A DAY OR SO AND IT WILL WORK. THIS TIME ITS NOT WORKING
NHTSA ODI #10780601
37,000 miles · Sep 24, 2015
Air Bags
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING, THERE WAS AN ABNORMAL NOISE COMING FROM THE DRIVER SIDE AIR BAG. THE ABNORMAL NOISE WAS PERSISTENT. THE CONTACT ALSO STATED THAT THE BATTERY FAILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE …
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TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING, THERE WAS AN ABNORMAL NOISE COMING FROM THE DRIVER SIDE AIR BAG. THE ABNORMAL NOISE WAS PERSISTENT. THE CONTACT ALSO STATED THAT THE BATTERY FAILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 37,000.
NHTSA ODI #10775980
78,000 miles · Sep 22, 2015
Exterior Lighting
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT UPON ENTERING AND STARTING THE VEHICLE, THE HEADLIGHTS FAILED TO OPERATE WITHIN MINUTES OF STARTING THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED INTERMITTENTLY AND WAS GETTING PROGRESSIVELY WORSE. THE VEHICLE WAS TAKEN TO THE DEALER TO BE DIA…
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TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT UPON ENTERING AND STARTING THE VEHICLE, THE HEADLIGHTS FAILED TO OPERATE WITHIN MINUTES OF STARTING THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED INTERMITTENTLY AND WAS GETTING PROGRESSIVELY WORSE. THE VEHICLE WAS TAKEN TO THE DEALER TO BE DIAGNOSED, HOWEVER THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 78,000.
NHTSA ODI #10767327
62,916 miles · Sep 1, 2015
Power Train
WHILE DRIVING ON HIGHWAY, STOPPED AT A LIGHT, I WENT TO ACCELERATE AND TRUCK LURCHED FORWARD, MADE A LOUD BANG AND WOULD NOT ENGAGE. THE ENGINE WHINES WHEN ACCELERATOR IS PRESSED, BUT NO MOVEMENT. ALSO, VEHICLE WOULD ROLL BACK WITHOUT THE EMERGENCY BRAKE ON. THERE WERE ZERO WARNINGS PRIOR TO COMPLETE FAILURE OF TRUCK. CONTACTED…
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WHILE DRIVING ON HIGHWAY, STOPPED AT A LIGHT, I WENT TO ACCELERATE AND TRUCK LURCHED FORWARD, MADE A LOUD BANG AND WOULD NOT ENGAGE. THE ENGINE WHINES WHEN ACCELERATOR IS PRESSED, BUT NO MOVEMENT. ALSO, VEHICLE WOULD ROLL BACK WITHOUT THE EMERGENCY BRAKE ON. THERE WERE ZERO WARNINGS PRIOR TO COMPLETE FAILURE OF TRUCK. CONTACTED GM AND CHEVY, AND WAS OFFERED NO HELP, UNTIL OUT OF POCKET DIAGNOSTICS ARE COMPLETED AT A GM/CHEVY DEALER (AND AT THIS POINT SINCE VEHICLE IS OUT OF WARRANTY, OWNER WAS TOLD THAT HELP FROM GM IS NOT GUARANTEED). TRUCK IS AT A PRIVATE SHOP, PRELIMINARY FINDINGS ARE THAT THE FRONT DIFFERENTIAL IS DAMAGED. THE POWER OUTPUT SHAFT AND SPLINE IS STRIPPED, THE CAUSE IS VEHICLE (DRIVETRAIN) DESIGN DOES NOT ALLOW ENGINE OIL TO GET TO THESE COMPONENTS. THE PARTS BECOME DRY AND BRITTLE, WHICH IS WHY THE GEARS ARE STRIPPED AND FAILURE OCCURRED. THIS IS NOT AN OWNER MAINTENANCE ISSUE, BUT A COMPLETE DESIGN FLAW. THESE COMPONENTS SHOULD BE ENCASED AND BE GETTING LUBRICATED FROM THE ENGINE OIL. FURTHER FINDINGS WILL BE REPORTED.
NHTSA ODI #10760680
100,000 miles · Aug 13, 2015
Exterior Lighting
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 30 MPH, THE LOW BEAMS FAILED TO ILLUMINATE. THE FAILURE WAS RECURRING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.
NHTSA ODI #10748568
85,026 miles · Jun 14, 2015
Engine
EXHAUST MANIFOLD IS CRACKED,GM KNOWS THERE ARE ISSUES WITH THESE BUT YET WONT FIX IT
NHTSA ODI #10725187
153,000 miles · Jun 5, 2015
Engine
EXHAUST MANIFOLD CRACKED AND HAD TO BE REPLACED.
NHTSA ODI #10723723
NHTSA investigations
1RQ17002 · 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.