NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
1,466 reportsMileage unknown · Jul 24, 2014
Fuel System, Gasoline
APPROXIMATELY 5 OR 6 MONTHS AGO I STARTED NOTICING WHEN I WOULD FILL MY TANK, THE FUEL GAUGE WOULD NOT REGISTER FULL. I TOOK MY CAR TO THE DEALERSHIP AND THEY TOLD ME IT WAS THE FUEL SENSOR THAT WASN'T WORKING. THEY TOLD ME IT WOULD BE $600 FOR A NEW ONE. I COULDN'T AFFORD THAT, SO NOW I USE MY MILEAGE INDICATOR AS TO WHEN I …
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APPROXIMATELY 5 OR 6 MONTHS AGO I STARTED NOTICING WHEN I WOULD FILL MY TANK, THE FUEL GAUGE WOULD NOT REGISTER FULL. I TOOK MY CAR TO THE DEALERSHIP AND THEY TOLD ME IT WAS THE FUEL SENSOR THAT WASN'T WORKING. THEY TOLD ME IT WOULD BE $600 FOR A NEW ONE. I COULDN'T AFFORD THAT, SO NOW I USE MY MILEAGE INDICATOR AS TO WHEN I FILL UP. *TR
NHTSA ODI #10616004
Mileage unknown · Jul 23, 2014
Electrical SystemFuel System, GasolineVehicle Speed Control
MY TRAIL BLAZER CHECK ENGINE LIGHT STAYS ON WE CANNOT RESET IT. THE FULL GAUGE SAYS IT HAS MORE GAS THEN WHAT IT DOES, I HAVE TO GUESS TO AVOID RUNNING OUR OF GAS. SPEEDOMETER STOPS WORKING THEN IT FIXES ITS SELF. THE RADIO AND LIGHTS SOMETIMES STAY ON, AND KILLS MY BATTERY. *TR
NHTSA ODI #10615763
60,000 miles · Jul 23, 2014
Fuel System, Gasoline
FUEL GAUGE STOPPED WORKING. *TR
NHTSA ODI #10615647
195,000 miles · Jul 23, 2014
Electrical System
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE DRIVER SIDE TURN SIGNAL, BRAKE LIGHTS, HEADLIGHTS, AIR CONDITIONING, AND HEATER WERE ALL DEFECTIVE. AN INDEPENDENT MECHANIC STATED THAT THE ELECTRICAL SYSTEM WAS DEFECTIVE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE APPROXIMAT…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE DRIVER SIDE TURN SIGNAL, BRAKE LIGHTS, HEADLIGHTS, AIR CONDITIONING, AND HEATER WERE ALL DEFECTIVE. AN INDEPENDENT MECHANIC STATED THAT THE ELECTRICAL SYSTEM WAS DEFECTIVE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 195,000.
NHTSA ODI #10615576
62,000 miles · Jul 23, 2014
Electrical SystemEngine And Engine CoolingFuel System, Gasoline
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKES FAILED. THE FAILURE OCCURRED INTERMITTENTLY FOR THREE YEARS. THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 62,000. THE WINDOW REGULATOR, BATTERY CABLE, TANK LEVEL…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKES FAILED. THE FAILURE OCCURRED INTERMITTENTLY FOR THREE YEARS. THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 62,000. THE WINDOW REGULATOR, BATTERY CABLE, TANK LEVEL SENSOR, CLUTCH FAN, SERPENTINE BELT, TIGHT OUTER TIE ROD, HOOD LATCH,WATER PUMP, WERE ALL REPLACED. ALSO, THE ROTORS WERE WARPED, DUE TO RUST BY CLIMATE, THE REAR BRAKES PADS WERE WORN AND HAD TO BE REPLACED. THE FRONT ROTORS WERE MACHINED. THERE WAS AN INTERMITTENT SURGE AFTER ACCELERATING FROM A STOP. THERE WAS A SQUEALING NOISE COMING FROM THE BRAKES. THE PASSENGER SIDE BRAKE LIGHTS WERE BLOWING OUT. THE TAIL LIGHT CIRCUIT BOARD WAS REPLACED. THE CHECK ENGINE LIGHT ILLUMINATED, DUE TO A FAULTY EMISSION VENT VALVE AND HOSE ASSEMBLY. THE ABS WAS ENGAGING, WHEN COMING TO A STOP. UPDATED 10/01/14
NHTSA ODI #10615557
75,000 miles · Jul 22, 2014
Exterior Lighting
THE DATE, MILEAGE AND MPH WERE EITHER ESTIMATED OR JUST UT IN SINCE OPTIONS DID NOT INCLUDE "UNKNOWN". WHEN DRIVING AT NIGHT HEADLIGHTS SOMETIMES TURNS OFF. ONLY THE LOWBEAMS TURN OFF, BUT WHEN DRIVING WITH HIGH BEAMS IT IS DANGEROUS BUT NECESSARY (ESPECIALLY WHEN ON THE HIGHWAYS). I CALLED GM AND THEY PRETTY MUCH CLAIMED THAT…
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THE DATE, MILEAGE AND MPH WERE EITHER ESTIMATED OR JUST UT IN SINCE OPTIONS DID NOT INCLUDE "UNKNOWN". WHEN DRIVING AT NIGHT HEADLIGHTS SOMETIMES TURNS OFF. ONLY THE LOWBEAMS TURN OFF, BUT WHEN DRIVING WITH HIGH BEAMS IT IS DANGEROUS BUT NECESSARY (ESPECIALLY WHEN ON THE HIGHWAYS). I CALLED GM AND THEY PRETTY MUCH CLAIMED THAT NO ONE HAD EVER COMPLAINED ABOUT IT. BUT I DID RESEARCH AND IT HAPPENS A LOT. *TR
NHTSA ODI #10615440
52,000 miles · Jul 20, 2014
Electrical SystemFuel System, GasolineVehicle Speed Control
THE VEHICLE PRESENTED WITH ERROR ON READING THE SPEED ONE IS TRAVELING AT. FUEL GAUGE NOT WORKING PROPERLY AND NOT READING GAS CORRECTLY. *TR
NHTSA ODI #10614826
32,262 miles · Jul 18, 2014
Steering
FAULTY IGNITION SWITCH NEEDED REPLACEMENT: NO BLOWER ON DEFROST, AIR, HEAT. BRAKE LIGHTS AND ABS LIGHTS CAME ON. ONLY 32,262 MILES. $240.34 TO REPLACE. WILL I BE REIMBURSED SINCE THIS IS A RECALL? *TR
NHTSA ODI #10614624
105,000 miles · Jul 16, 2014
Electrical System
MY SPEEDOMETER HAS STOPPED WORKING IN MY CAR AN I DON'T KNOW HOW FAST THE CAR IS TRAVELING, DONE A RESEARCH ONLINE AN THERE ARE THOUSAND PEOPLE WITH THE SAME PROBABLY AS MINE WITH THE EXACT SAME MAKE AND MODEL OF CAR AS I HAVE. SOMETHING NEEDS TO BE DONE CAUSE CHEVROLET WANT $500 TO REPLACE THE SPEEDOMETER AN THAT IS NOT RIGHT. …
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MY SPEEDOMETER HAS STOPPED WORKING IN MY CAR AN I DON'T KNOW HOW FAST THE CAR IS TRAVELING, DONE A RESEARCH ONLINE AN THERE ARE THOUSAND PEOPLE WITH THE SAME PROBABLY AS MINE WITH THE EXACT SAME MAKE AND MODEL OF CAR AS I HAVE. SOMETHING NEEDS TO BE DONE CAUSE CHEVROLET WANT $500 TO REPLACE THE SPEEDOMETER AN THAT IS NOT RIGHT. *TR
NHTSA ODI #10610973
86,225 miles · Jul 15, 2014
Electrical SystemFire
THE WIRING CONNECTING THE BLOWER MOTOR TO THE RESISTOR UNDER THE GLOVE BOX HAS MELTED THE CONNECTION BETWEEN THE TWO RESULTING IN SMOKE AND TOXIC FUMES FROM BURNING WIRES WHILE VEHICLE WAS IN OPERATION WITH A/C OPERATING ON HIGH. SHUTTING THE VEHICLE OFF STOPPED ANY FURTHER DAMAGE, I HAVE GOOGLED THIS ISSUE AND APPEARS AS THOUGH…
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THE WIRING CONNECTING THE BLOWER MOTOR TO THE RESISTOR UNDER THE GLOVE BOX HAS MELTED THE CONNECTION BETWEEN THE TWO RESULTING IN SMOKE AND TOXIC FUMES FROM BURNING WIRES WHILE VEHICLE WAS IN OPERATION WITH A/C OPERATING ON HIGH. SHUTTING THE VEHICLE OFF STOPPED ANY FURTHER DAMAGE, I HAVE GOOGLED THIS ISSUE AND APPEARS AS THOUGH ITS A KNOWN PROBLEM WITHOUT GM ACKNOWLEDGING THE ISSUE AND DOING ANY THING TO REMEDY THE ISSUE, ACCORDING TO COMPLAINTS FILED WITH CARCOMPLAINTS.COM. *TR
NHTSA ODI #10610809
NHTSA investigations
2RQ17002 · 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.
DP10001 · Fuel Level Gauge System Failure
Opened Jan 7, 2010 · Closed May 23, 2011
Status: closed (inferred from source dates) · Fuel System, Other; Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Additional source detail variants (2)
Fuel System, Other
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
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