NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
193 reports15,300 miles · Dec 7, 2009
Vehicle Speed Control
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER SSS. WHILE DRIVING 35 MPH THE VEHICLE BEGAN TO LOSE POWER. SHE ATTEMPTED TO COAST INTO A PARKING SPACE , BUT THE VEHICLE THEN BEGAN TO RAPIDLY ACCELERATE. AFTER REPEATED BRAKE APPLICATION SHE WAS ABLE TO STOP AND PARK THE VEHICLE. A TECHNICIAN FROM THE DEALER ADVISED HER TO BRIN…
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TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER SSS. WHILE DRIVING 35 MPH THE VEHICLE BEGAN TO LOSE POWER. SHE ATTEMPTED TO COAST INTO A PARKING SPACE , BUT THE VEHICLE THEN BEGAN TO RAPIDLY ACCELERATE. AFTER REPEATED BRAKE APPLICATION SHE WAS ABLE TO STOP AND PARK THE VEHICLE. A TECHNICIAN FROM THE DEALER ADVISED HER TO BRING THE VEHICLE TO THE DEALER FOR INSPECTION. THE FAILURE MILEAGE WAS 15,300.
NHTSA ODI #10294782
42,627 miles · Dec 1, 2009
Engine And Engine Cooling
2008 CHEVY TRAILBLAZER 42,000 MILES HAD TO HAVE THE MANIFOLD REPLACED AS THE ENTIRE MANIFOLD WAS SPLIT AROUND THE ENTIRE PIPE. *TR
NHTSA ODI #10294186
5,272 miles · Apr 28, 2009
Service Brakes, Hydraulic
I WAS STOPPED FOR A RED LIGHT ON A SLIGHT HILL. WHEN IT TURNED GREEN I TRIED TO MOVE AHEAD AND ALL 4 BRAKES HAD LOCKED UP AND I HAD NO FORWARD MOTION. I PUSHED HAD ON GAS PEDAL AND WAS ABLE TO CREEP AT ABOUT 1 MPH TO A DRIVEWAY. WHEN I ENTERED DRIVEWAY I HEARD A "CLINK" AND BRAKES RELEASED.THIS VEH HAS 5200 MILES AND IS A 2008 T…
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I WAS STOPPED FOR A RED LIGHT ON A SLIGHT HILL. WHEN IT TURNED GREEN I TRIED TO MOVE AHEAD AND ALL 4 BRAKES HAD LOCKED UP AND I HAD NO FORWARD MOTION. I PUSHED HAD ON GAS PEDAL AND WAS ABLE TO CREEP AT ABOUT 1 MPH TO A DRIVEWAY. WHEN I ENTERED DRIVEWAY I HEARD A "CLINK" AND BRAKES RELEASED.THIS VEH HAS 5200 MILES AND IS A 2008 TRAILBLAZER SS AWD. THIS IS THE 1ST INSTANCE OF THIS TYPE.I TOOK IT TO MY SERVICING CHEVY DEALER AND THEY CHECKED IT OUT AND SAID THAT "MECHANICALLY " IT WAS FINE. THEY CONTACTED CHEVROLET TAC AND WERE TOLD THIS HAS NEVER EVER HAPPENED IN THE WHOLE DATA BASE FOR GM AND NO REPAIRS AUTHORIZED TILL IT CAN BE REPLICATED FOR THEM TO SEE. THERE WERE NO CODES STORED . THIS HAPPENED 0N 4-25-09. I WENT BACK TO DEALERSHIP ON 4-28-09 AND THE AGAIN CALLED TAC TO SEE IF THERE WAS ANYONE WHO HAD INFO ON THIS TYPE OF FAILURE OF THE BRAKES....BUT AGAIN NO LUCK. I FEEL STRONGLY THAT THIS IS A SAFETY ISSUE AND CHEVROLET SHOULD BE DOING MORE THAN LIP SERVICE.... *TR
NHTSA ODI #10267152
1,066 miles · Mar 26, 2009
Air BagsSeat Belts
THIS COMPLAINT IS IN CONJUNCTION WITH MY FALSE AND DELAYED SIDE CURTAIN AIRBAG DEPLOYMENT, REPORT DATE OF MARCH 25, 2009. I JUST DISCOVERED THAT BOTH FRONT SEAT BELT SYSTEMS MUST BE REPLACED. THE DRIVERS SIDE SEAT BELT IS LIMP. THE PASSENGER SIDE SEAT BELT IS SO TIGHT IT NOT ONLY BROKE TOP OF THE BELT HOUSING ON TOP OF THE SEAT…
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THIS COMPLAINT IS IN CONJUNCTION WITH MY FALSE AND DELAYED SIDE CURTAIN AIRBAG DEPLOYMENT, REPORT DATE OF MARCH 25, 2009. I JUST DISCOVERED THAT BOTH FRONT SEAT BELT SYSTEMS MUST BE REPLACED. THE DRIVERS SIDE SEAT BELT IS LIMP. THE PASSENGER SIDE SEAT BELT IS SO TIGHT IT NOT ONLY BROKE TOP OF THE BELT HOUSING ON TOP OF THE SEAT (PIECES), THE BELT IS SO TIGHT IT IS DEFORMING THE SEAT. I CANT IMAGINE WHAT THIS WOULD HAVE DONE TO A PASSENGER, HAD I HAVE HAD ONE IN THAT SEAT. *TR
NHTSA ODI #10263133
1,065 miles · Mar 17, 2009
Air Bags
SIDE WINDOW AIRBAG DEPLOYMENT, DEPLOYED VIRTUALLY SECONDS AFTER I MADE A SUDDEN ABRUPT MANEUVER (IN AVOIDANCE OF ANOTHER VEHICLE). I WAS NORMALLY PROCEEDING STRAIGHT DOWN THE ROADWAY AT THE TIME OF DEPLOYMENT. THE PASSENGER AIRBAG DEPLOYED RAPIDLY AND AT THE SAME TIME THE DRIVERS SIDE DEPLOYED VERY SLOWLY AS IF IN SLOW MOTION. I…
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SIDE WINDOW AIRBAG DEPLOYMENT, DEPLOYED VIRTUALLY SECONDS AFTER I MADE A SUDDEN ABRUPT MANEUVER (IN AVOIDANCE OF ANOTHER VEHICLE). I WAS NORMALLY PROCEEDING STRAIGHT DOWN THE ROADWAY AT THE TIME OF DEPLOYMENT. THE PASSENGER AIRBAG DEPLOYED RAPIDLY AND AT THE SAME TIME THE DRIVERS SIDE DEPLOYED VERY SLOWLY AS IF IN SLOW MOTION. IN AN ATTEMPT TO SEE TO TURN LEFT I CONTACTED A CURB AND RESULTING IN A FLAT TIRE (RIGHT FRONT). THESE AIR BAGS SHOULD NOT HAVE DEPLOYED AND ESPECIALLY MOMENTS AFTER MY MANEUVER. G.M. HAS CONCLUDED THAT I EXPERIENCED A NEAR ROLLOVER SITUATION, AND THAT ALL SENSORS FUNCTIONED NORMALLY. G.M. HAS DECLINED ANY ASSISTANCE ON THE AIRBAG AND HEADLINER (AS A RESULT OF DEPLOYMENT) REPLACEMENT, THAT IS THE ONLY EXISTING DAMAGE TO THE VEHICLE WITH 1066 MILES ON IT. THE VEHICLE IS SITTING AT THE DEALER WITH ITS ESTIMATE OF $4000.00 TO RESET ALL. I AM SURE THAT THERE IS A HIGH POSSIBILITY THAT THIS WILL RE-OCCUR. NOBODY CAN OR WILL ANSWER OR ADDRESS MY QUESTIONS AND CONCERNS THAT THERE IS SOMETHING WRONG WITH THE SYSTEM IN THIS VEHICLE THAT, NOT ONLY ERRONEOUSLY ACTIVATED, BUT SUBSTANTIALLY LATE IN THE MATER OF ANY SUDDEN MOVEMENT. I AM CONSIDERING CANCELING MY EXTENDED WARRANTY AS I MAY NOT OWN THIS VEHICLE THROUGH THE COURSE OF ITS MANUFACTURERS WARRANTY AS A RESULT OF THIS UNNERVING EXPERIENCE. *TR
NHTSA ODI #10262132
6,500 miles · Mar 13, 2009
Air BagsCrash
TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING 35 MPH, THE CONTACT WAS INVOLVED IN A HEAD-ON CRASH. THE ENTIRE FRONT END OF HIS VEHICLE WAS CRUSHED AND THE INSURANCE COMPANY DECLARED THE VEHICLE AS DESTROYED. THE SEAT BELTS PROPERLY RESTRAINED THE CONTACT, BUT THE AIR BAGS FAILED TO DEPLOY. THERE WERE NO INJ…
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TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING 35 MPH, THE CONTACT WAS INVOLVED IN A HEAD-ON CRASH. THE ENTIRE FRONT END OF HIS VEHICLE WAS CRUSHED AND THE INSURANCE COMPANY DECLARED THE VEHICLE AS DESTROYED. THE SEAT BELTS PROPERLY RESTRAINED THE CONTACT, BUT THE AIR BAGS FAILED TO DEPLOY. THERE WERE NO INJURIES, BUT A POLICE REPORT WAS FILED. THE FAILURE MILEAGE WAS 6,500.
NHTSA ODI #10261711
400 miles · Feb 20, 2009
Electrical System
I BOUGHT THIS 08 CHEVY TRAILBLAZER NEW 9-30-08.FROM THE DATE I BOUGHT IT I NOTICED THE CHARGING HAND ON THE INSTRUMENT PANEL SHOWS THE BATTERY NOT CHARGING ABOUT 50% OF THE TIME,THE OWNERS MANUAL SAYS THIS IS A FUEL SAVING FEATURE .WHEN THE BATTERY IS FULLY CHARGED THE ALTERNATOR QUITS CHARGING.AFTER APPROXIMATELY 1 MONTH OF DR…
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I BOUGHT THIS 08 CHEVY TRAILBLAZER NEW 9-30-08.FROM THE DATE I BOUGHT IT I NOTICED THE CHARGING HAND ON THE INSTRUMENT PANEL SHOWS THE BATTERY NOT CHARGING ABOUT 50% OF THE TIME,THE OWNERS MANUAL SAYS THIS IS A FUEL SAVING FEATURE .WHEN THE BATTERY IS FULLY CHARGED THE ALTERNATOR QUITS CHARGING.AFTER APPROXIMATELY 1 MONTH OF DRIVING THIS VEH.I NOTICED WHEN IT QUIT FULLY CHARGING THE POWER WINDOWS WOULD NOT ROLL BUT 1/3RD OF THE WAY UP,THE VEH.CAN'T BE DRIVEN IN THE RAIN DUE TO THE WIPERS BARELY MOVING,THE BOSE STEREO SYSTEM LOSES POWER AND MALFUNCTIONS,AND IM SURE OTHER THINGS DON'T FUNCTION PROPERLY,THE TRANSMISSION MALFUNCTIONS AND WONT SHIFT LIKE IT IS DESIGNED TO DO,THE MILES PER GALLON GAUGE RESETS ITSELF WHILE THE VEH.IS MOVING. I HAVE HAD THE VEH.TO THE LOCAL CHEVY DEALER AND THEY DON'T HAVE A CLUE TO WHY IT IS DOING THIS,I THINK IF YOUR DRIVING ON A MAJOR HIGHWAY AND RUN INTO A HARD RAINSTORM YOU WOULD BE LUCKY TO GET OFF THE HIGHWAY BEFORE CAUSING A MAJOR ACCIDENT DUE TO THE WIPERS NOT WORKING PROPERLY,,I EXPERIENCED THE SITUATION ONCE BUT WAS LUCKY TRAFFIC WAS LIGHT. AM TAKING THE VEH.TO ANOTHER DEALER THIS WEEK TO SEE IF THEY CAN FIX THE PROBLEM. THE WIPERS NOT WORKING PROPERLY IS AN EXTREMELY DANGEROUS PROBLEM. *TR
NHTSA ODI #10259480
57,300 miles · Dec 23, 2008
Fuel System, Gasoline
FOR THREE WEEKS MY FUEL LIGHT DENOTES THAT I AM ON EMPTY. I THOUGHT THAT I HAD FORGOTTEN TO GET SOME GAS. BUT WHEN I STARTED TO PAY ATTENTION TO THE GAS LIGHT, I NOTICED THAT, EVEN WHEN I FILLED UP THE GAS TANK, I WAS STILL GETTING THAT RINGING SOUND THAT DENOTES 'EMPTY'. I TOOK MY CAR TO THE DEALERSHIP AND THEY SAID THAT THE…
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FOR THREE WEEKS MY FUEL LIGHT DENOTES THAT I AM ON EMPTY. I THOUGHT THAT I HAD FORGOTTEN TO GET SOME GAS. BUT WHEN I STARTED TO PAY ATTENTION TO THE GAS LIGHT, I NOTICED THAT, EVEN WHEN I FILLED UP THE GAS TANK, I WAS STILL GETTING THAT RINGING SOUND THAT DENOTES 'EMPTY'. I TOOK MY CAR TO THE DEALERSHIP AND THEY SAID THAT THEY WOULD CHARGE ME ABOUT $460 TO FIX THE PROBLEM, THAT AN AWFUL LOT OF MONEY FOR A FUEL LIGHT. WHAT'S UP WITH THIS? *TR
NHTSA ODI #10252608
19,002 miles · Oct 1, 2008
Suspension
TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT HEARD SOUNDS COMING FROM THE REAR OF THE VEHICLE. THE NOISE BEGAN TO WORSEN GRADUALLY AND THE VEHICLE WAS TAKEN TO THE CHEVROLET DEALER; HOWEVER, THEY COULD NOT FIND ANY FAILURES. THE VEHICLE HAS BEEN TAKEN TO THE SHOP THREE TIMES AND HAS STILL NOT BEEN PROPERLY DI…
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TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT HEARD SOUNDS COMING FROM THE REAR OF THE VEHICLE. THE NOISE BEGAN TO WORSEN GRADUALLY AND THE VEHICLE WAS TAKEN TO THE CHEVROLET DEALER; HOWEVER, THEY COULD NOT FIND ANY FAILURES. THE VEHICLE HAS BEEN TAKEN TO THE SHOP THREE TIMES AND HAS STILL NOT BEEN PROPERLY DIAGNOSED. THE CONTACT FEELS THAT THIS IS A SAFETY ISSUE BECAUSE THE VEHICLE IS CURRENTLY BEGINNING TO DRIFT WHILE DRIVING. HE FEELS THAT THE DRIFTING AND THE NOISE ARE RELATED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 19,002.
NHTSA ODI #10244164
1,326 miles · Sep 8, 2008
Power Train
RENTED 2009 CHEVROLET TRAILBLAZER SUV FROM NATIONAL CAR RENTAL ON 8/31/08 WITH 436 MILES ON ODOMETER. DROVE APPROX 800 MILES OVER A PERIOD OF 7 DAYS. ON 9/6/08, WHILE DRIVING ON I-75 SOUTHBOUND AT 70MPH, VEHICLE SHIFTED ITSELF INTO 3RD GEAR, WOULD NOT GO INTO 4TH OR OVERDRIVE. RPM'S AT 70 MPH WERE APPROX 3,500. PULLED OFF …
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RENTED 2009 CHEVROLET TRAILBLAZER SUV FROM NATIONAL CAR RENTAL ON 8/31/08 WITH 436 MILES ON ODOMETER. DROVE APPROX 800 MILES OVER A PERIOD OF 7 DAYS. ON 9/6/08, WHILE DRIVING ON I-75 SOUTHBOUND AT 70MPH, VEHICLE SHIFTED ITSELF INTO 3RD GEAR, WOULD NOT GO INTO 4TH OR OVERDRIVE. RPM'S AT 70 MPH WERE APPROX 3,500. PULLED OFF ROAD AT INTERSTATE EXIT, TRANSMISSION MADE A "CLUNK", JOLTING ME AND MY WIFE RATHER INTENSELY. TOPPED OFF THE FUEL, QUITE GINGERLY BEGAN OUR TRIP AGAIN. AS VEHICLE REACHED 45-50MPH, IT DOWNSHIFTED ITSELF INTO 3RD GEAR, JUMPING THE RPM'S AND CAUSING THE VEHICLE TO LURCH HARSHLY. CALLED NATIONAL, REQUESTED THEY "TALK US IN" TO SAGINAW, MI OFFICE FOR VEHICLE EXCHANGE. NATIONAL REP TOLD ME SHE "COULD NOT READ A MAP" AND "CAN'T TELL WHAT EXIT YOU SHOULD TAKE TO GET HERE". WE ONCE AGAIN PULLED OFF THE ROAD AT AN EXIT, SLOWED TO A STOP, PUT VEHICLE IN PARK WHILE ATTEMPTING TO LOCATE A NATIONAL OFFICE. WHILE ON "HOLD" WITH NATIONAL'S ROADSIDE ASSISTANCE DEPT., DECIDED TO TRY TO GET ON THE ROAD AGAIN. REACHED 40MPH ON I-75, WHEN TRANSMISSION COMPLETELY FAILED. MOTOR REVVED WHEN THROTTLE DEPRESSED, BUT NO FORWARD MOTION OCCURRED. PULLED OFF IN EMERGENCY LANE (NARROW, NEXT TO A STEEP DITCH), AND WERE STUCK THERE FOR NEARLY TWO HOURS WHILE NATIONAL PERFORMED A "TOW-EXCHANGE". EVENTUALLY, ANOTHER VEHICLE WAS BROUGHT OUT, BUT NOT UNTIL AFTER WE WERE STUCK WITH HUGE SEMI TRACTORS RUNNING 80MPH PAST US FOR TWO HOURS, AND HAVING NO MEANS OF SHELTER FROM THE POTENTIAL OF BECOMING "ROADKILL"!! FAILURE OF TRANSMISSION WAS UNPRECEDENTED. VEHICLE DROVE NORMALLY UNTIL IT WOULD NOT SHIFT INTO 4TH / OVERDRIVE. FAILURE WAS PROGRESSIVE AND SEVERE THEREAFTER. *TR
NHTSA ODI #10241343
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.