NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
29 reportsClear category filter111,000 miles · Aug 26, 2014
EngineFuel System, Gasoline
STARTING ABOUT A FEW WEEKS AGO MY 2004 CHEVY TRAILBLAZER EXT HAS REEKED OF UNSPENT GASOLINE, AND THIS SMELL CONSUMES THE ENTIRE INTERIOR AND EXTERIOR OF THE VEHICLE. THE VEHICLE ALSO HAS SMALL LEAK BELOW RESERVOIR WHICH APPEARS TO BE LEAKING UNSPENT FUEL. CHEVY OFFERED A "SPECIAL COVERAGE" TO CORRECT THIS ISSUE (CORROSION ON TOP…
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STARTING ABOUT A FEW WEEKS AGO MY 2004 CHEVY TRAILBLAZER EXT HAS REEKED OF UNSPENT GASOLINE, AND THIS SMELL CONSUMES THE ENTIRE INTERIOR AND EXTERIOR OF THE VEHICLE. THE VEHICLE ALSO HAS SMALL LEAK BELOW RESERVOIR WHICH APPEARS TO BE LEAKING UNSPENT FUEL. CHEVY OFFERED A "SPECIAL COVERAGE" TO CORRECT THIS ISSUE (CORROSION ON TOP OF FUEL TANK RESERVOIR), HOWEVER IT ONLY COVERS VEHICLES UNDER 10 YEARS OF AGE AND UNDER 120K MILES. MY VEHICLE IS UNDER THAT MILEAGE, HOWEVER THIS REPAIR WILL NOT BE COVERED DUE TO AGE OF VEHICLE (MINE WAS ASSEMBLED IN MARCH). THIS ISSUE IS A MAJOR SAFETY CONCERN, AS ANY SMALL SPARK COULD CAUSE THIS VEHICLE TO IGNITE. I CANNOT CONTINUE TO DRIVE MY VEHICLE, AND FEEL THIS NEEDS TO BE RECTIFIED BEFORE IT CAUSES CATASTROPHIC LOSS (EITHER BUILDING OR PERSONAL). *TR
NHTSA ODI #10628406
83,000 miles · Apr 2, 2014
Electrical SystemExterior LightingFuel System, Gasoline
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
NHTSA ODI #10576687
161,000 miles · Oct 27, 2013
Fuel System, Gasoline
I HAVE A 2004 CHEVROLET TRAILBLAZER EXT WITH 161,000 MILES ON IT. A FEW WEEKS AGO I GOT TO NOTICING A REAL STRONG GAS ODOR IN AND AROUND THE VEHICLE. I HAVE DONE A LOT OF RESEARCH AND HAVE HAD THE VEHICLE CHECKED OUT AND CAME TO THE CONCLUSION THAT IT IS THE COMMON PROBLEM THAT IS AFFECTING MANY OTHER TRAILBLAZER EXT OWNERS. IT …
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I HAVE A 2004 CHEVROLET TRAILBLAZER EXT WITH 161,000 MILES ON IT. A FEW WEEKS AGO I GOT TO NOTICING A REAL STRONG GAS ODOR IN AND AROUND THE VEHICLE. I HAVE DONE A LOT OF RESEARCH AND HAVE HAD THE VEHICLE CHECKED OUT AND CAME TO THE CONCLUSION THAT IT IS THE COMMON PROBLEM THAT IS AFFECTING MANY OTHER TRAILBLAZER EXT OWNERS. IT IS THE FUEL TANK INLET CHECK VALVE AT THE TOP OF THE FUEL TANK. IN DOING MY RESEARCH I HAVE NOTICED THAT MANY PEOPLE HAVE HAD THIS ISSUE FIXED BY SOME RECALLS THAT HAVE BEEN ISSUED SO I TOOK THE VEHICLE TO MY LOCAL CHEVROLET DEALER TO FIND OUT ABOUT IT ONLY TO BE INFORMED THAT MINE IS 41,000 MILES PAST THE RECALL MILEAGE AND WILL COST UPWARDS OF $1,000 TO FIX. I AM WORRIED ABOUT A POSSIBLE FIRE OR EXPLOSION WITH THIS ISSUE. I AM AFRAID TO DRIVE IT TO WORK EVERY DAY AND TO USE IT TO TAKE MY CHILDREN TO SCHOOL. I JUST WISH THAT CHEVROLET WOULD FIX THIS SO I DON'T HAVE TO WORRY EVERY DAY ABOUT DRIVING IT. I DON'T FEEL THAT THERE SHOULD BE A MILEAGE RESTRICTION ON A SAFETY ISSUE THAT COULD RESULT IN DEATH OR GREAT INJURY. *TR
NHTSA ODI #10549713
156,000 miles · Jul 31, 2013
Fuel System, Gasoline
I BEGAN SMELLING GAS FROM THE VEHICLE AND NOTED THAT THERE IS GAS DRIPPING FROM AROUND THE GAS TANK. I CONTACTED MY MECHANIC AND WAS TOLD THAT THIS IS THE THIRD TRAILBLAZER HE HAS SEEN IN 2 WEEKS WITH THE SAME PROBLEM. CHEVROLET ADVISES THAT THERE WAS A FIX WHICH WAS GOOD ONLY UNTIL 120,000 MILES. HOW AM I SUPPOSED TO KNOW TO TA…
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I BEGAN SMELLING GAS FROM THE VEHICLE AND NOTED THAT THERE IS GAS DRIPPING FROM AROUND THE GAS TANK. I CONTACTED MY MECHANIC AND WAS TOLD THAT THIS IS THE THIRD TRAILBLAZER HE HAS SEEN IN 2 WEEKS WITH THE SAME PROBLEM. CHEVROLET ADVISES THAT THERE WAS A FIX WHICH WAS GOOD ONLY UNTIL 120,000 MILES. HOW AM I SUPPOSED TO KNOW TO TAKE IT AND HAVE IT FIXED BEFORE 120,000 MILES IF I AM NOT NOTIFIED BY GM? THIS OBVIOUSLY IS A SERIOUS SAFETY ISSUE INVOLVING THE TRAILBLAZER WHICH GM IS AWARE OF BUT HAS THUS FAR RESISTED RECALLING. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10532784
103,000 miles · Jun 6, 2013
Electrical SystemFuel System, Gasoline
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 FALS…
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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 FAULTY). GIVEN THE EXPANSIVE NATURE OF THIS ISSUE, AND THE POTENTIAL DANGERS OF NOT KNOWING YOUR SPEED, FUEL LEVEL, OIL PRESSURE OR RPMS, I'M HAVING PROBLEMS SEEING WHY THIS ISN'T A RECALL ALREADY. IT SEEMS TO HAPPEN MORE IN THE 2003-2006 MODELS MORE THAN OTHERS FROM WHAT I'VE FOUND AS WELL. *TR
NHTSA ODI #10515530
Mileage unknown · Mar 31, 2012
Fuel System, Gasoline
TANK IS SUBJECT TO CRACKING CAUSING ROUGH IDLE VEHICLE SPEED SURGES AND GAS VAPORS IN THE VEHICLE AND AROUND THE VEHICLE. VEHICLE WILL FAIL EMISSIONS. MANUFACTURE RECALL WAS PUT OUT BUT VEHICLE HAS TO BE MADE AT A CERTAIN FACULTY AND MINE WASN'T, BUT HAS THE SAME PROBLEM AS THE RECALLED CARS. *JS
NHTSA ODI #10453643
144,000 miles · Dec 28, 2011
Fuel System, Gasoline
MY VEHICLE IS CURRENTLY PARKED IN MY FAMILY'S GARAGE, AS I AM EXPERIENCING A STRONG GAS SMELL. THERE IS NO VISIBLE LEAK, BUT I DO NOT DARE TO TRANSPORT MY CHILDREN IN THE VEHICLE UNTIL I CAN FIND WHAT THE GAS SMELL IS ORIGINATING FROM. *TR
NHTSA ODI #10441453
88,000 miles · Nov 22, 2011
Fuel System, Gasoline
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. T…
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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.
NHTSA ODI #10436772
Mileage unknown · Nov 21, 2011
Fuel System, Gasoline
NOTICED GASOLINE ODORS INSIDE THE VEHICLE ON OCT. 2011. PERSONAL AUTO MECHANIC TOLD ME LAST WEEK THAT THERE'S A CRACK ON THE FUEL FILL NECK AREA WHERE THE GAS NOZZLE IS INSERTED. *TR
NHTSA ODI #10436557
113,000 miles · Jun 11, 2011
Fuel System, Gasoline
THE FUEL TANK IS LEAKING. THE FILL TUBE SEPARATED FROM THE TANK AND IS LEAKING FUEL ONTO THE TANK. THERE IS A STRONG FUEL ODOR AS WELL. CALLED CHEVROLET THEY STATED THAT VEHICLES ARE ONLY BEING REPAIRED FOR THIS ISSUE IN NORTHERN, EASTERN AND MIDWESTERN STATES. STATED THEY WILL NOT FIX MY ISSUE THOUGH IT HAS THE SAME ISSUES …
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THE FUEL TANK IS LEAKING. THE FILL TUBE SEPARATED FROM THE TANK AND IS LEAKING FUEL ONTO THE TANK. THERE IS A STRONG FUEL ODOR AS WELL. CALLED CHEVROLET THEY STATED THAT VEHICLES ARE ONLY BEING REPAIRED FOR THIS ISSUE IN NORTHERN, EASTERN AND MIDWESTERN STATES. STATED THEY WILL NOT FIX MY ISSUE THOUGH IT HAS THE SAME ISSUES COVERED UNDER THE SPECIAL COVERAGE, DUE TO MY GEOGRAPHIC LOCATION. *TR
NHTSA ODI #10405954
NHTSA investigations
3RQ17002 · 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.
EA07009 · Fuel Pump Module Leaks Gasoline
Opened Jul 10, 2007 · Closed Aug 28, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline:delivery:fuel Pump
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.
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