NHTSA owner reports · September 18, 2026 snapshot.
Fuel/propulsion System complaints
43 reportsClear category filter118,000 miles · Dec 16, 2016
Fuel System, GasolineFuel/propulsion System
AFTER FUELING,WHEN DRIVING AND WHILE STATIONARY THE SMELL OF GAS FUMES INSIDE THE VEHICLE VERY STRONG DIFFICULTYSTARTING AND NOW WONT START AT ALL UPON FURTHER SELF INVESTAGATION FUEL IS COMIMING OUT ON TOP OF FUEL TANKSMALL HOLES SEEM TO EXIST WHERE FUEL IS COMING OUT HOW EVER I CANT GET IN FAR ENOUGH TO SEE THIS WAS DETERMINED…
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AFTER FUELING,WHEN DRIVING AND WHILE STATIONARY THE SMELL OF GAS FUMES INSIDE THE VEHICLE VERY STRONG DIFFICULTYSTARTING AND NOW WONT START AT ALL UPON FURTHER SELF INVESTAGATION FUEL IS COMIMING OUT ON TOP OF FUEL TANKSMALL HOLES SEEM TO EXIST WHERE FUEL IS COMING OUT HOW EVER I CANT GET IN FAR ENOUGH TO SEE THIS WAS DETERMINED BY FEELING AROUND ON THE FUEL TANK.
NHTSA ODI #10935593
155,000 miles · Nov 21, 2016
Fuel/propulsion System
LET ME BEGIN WITH STATING THAT MY 2004 TRAILBLAZER HAS HAD ITS SERVICE ENGINE SOON (SES) LIGHT ON FOR WELL OVER A YEAR DUE TO A LARGE EVAP LEAK (CODE P0455). AS A RESULT, I HAVE TAKEN IT TO TWO MECHANICS, HAD THE PURGE SOLENOID VALVE REPLACED TWICE, HAD A PLETHORA OF SMOKE TESTS AND ALL OTHER TESTS DONE, WITH NO RESOLVE. I RECEI…
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LET ME BEGIN WITH STATING THAT MY 2004 TRAILBLAZER HAS HAD ITS SERVICE ENGINE SOON (SES) LIGHT ON FOR WELL OVER A YEAR DUE TO A LARGE EVAP LEAK (CODE P0455). AS A RESULT, I HAVE TAKEN IT TO TWO MECHANICS, HAD THE PURGE SOLENOID VALVE REPLACED TWICE, HAD A PLETHORA OF SMOKE TESTS AND ALL OTHER TESTS DONE, WITH NO RESOLVE. I RECEIVED A LETTER FROM GM (DATED A YEAR BEFORE) JUST A COUPLE WEEKS AGO STATING THAT "SOME 2004 MODEL YEAR CHEVROLET TRAILBLAZER VEHICLES MAY CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE.. A FRACTURED ICV COULD ALLOW FUEL VAPORS TO PASS THROUGH AND DROPLETS OF FUEL TO ACCUMULATE ON THE SIDE OF THE FUEL TANK". THE LETTER GOES ON TO DESCRIBE THAT GM WILL REPAIR THE ICV IF THE CONDITION OCCURS WITHIN 15 YEARS THE VEHICLE WAS ORIGINALLY PLACED IN SERVICE OR 150,000 MILES, WHICHEVER COMES FIRST. MY TRAILBLAZER HAS BEEN IN SERVICE FOR 12 YEARS, HOWEVER I JUST PASSED 155,000 MILES. HAD I BEEN NOTIFIED AROUND THE TIME THE LETTER WAS SUPPOSED TO ARRIVE, I COULD HAVE EASILY TAKEN MY TRAILBLAZER TO THE DEALERSHIP AND HAD THIS REPAIR DONE WITH NO QUALMS. HOWEVER, BECAUSE I HAVE PASSED THE 150,000 MILE MARK, GM REFUSES TO COVER THIS REPAIR. THIS IS EXTREMELY UPSETTING CONSIDERING THE OBVIOUS SAFETY RISK PRESENTED WITH "DROPLETS OF FUEL ACCUMULATING ON THE SIDE OF THE FUEL TANK". WHEN SPEAKING TO A GM REPRESENTATIVE THIS MORNING, I WAS TOLD TO TAKE MY CAR TO A DEALERSHIP AND THIS WOULD BE AN OUT-OF-POCKET EXPENSE. CONSIDERING THE SAFETY ISSUE, I WANT MY TRAILBLAZER TO BE REPAIRED AND COVERED BY GM AS IT SHOULD BE FOR ALL TRAILBLAZER AND ENVOY OWNERS WITH THIS PROBLEM.
NHTSA ODI #10927223
46,500 miles · Jun 16, 2016
Fuel/propulsion System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHEN THE VEHICLE WAS STARTED, A STRONG ODOR OF FUEL WAS PRESENT. THE VEHICLE WAS DRIVEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A FAILURE WITH THE FUEL TANK. THE VEHICLE WAS KEPT AT THE DEALER FOR FOUR WEEKS. THE DEALER STATED THAT THE PART NEEDED TO REPAIR THE VEHIC…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHEN THE VEHICLE WAS STARTED, A STRONG ODOR OF FUEL WAS PRESENT. THE VEHICLE WAS DRIVEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A FAILURE WITH THE FUEL TANK. THE VEHICLE WAS KEPT AT THE DEALER FOR FOUR WEEKS. THE DEALER STATED THAT THE PART NEEDED TO REPAIR THE VEHICLE WAS NOT AVAILABLE AND NEEDED TO BE ORDERED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 46,500. ...UPDATED 07/13/16 *BF .....UPDATED 08/11/16 *BF
NHTSA ODI #10874588
131,000 miles · Mar 24, 2016
Fuel/propulsion System
MY VEHICLE IS IN THE GM SPECIAL COVERAGE ADJUSTMENT PROGRAM NUMBER 07099 AND IS UNDER THE GM SPL COVERAGE PGM UPDATE 14423. I WAS NOTIFIED THAT THE ICV COULD FRACTURE AND CREATE AN 'ENGINE SERVICE SOON' LIGHT. THAT LIGHT WAS ACTIVATED IN FEBRUARY. I TOOK IT IN, IT'S THE ICV. THEY SAID THEY'D REPLACE THE FUEL TANK AS SOON AS THEY…
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MY VEHICLE IS IN THE GM SPECIAL COVERAGE ADJUSTMENT PROGRAM NUMBER 07099 AND IS UNDER THE GM SPL COVERAGE PGM UPDATE 14423. I WAS NOTIFIED THAT THE ICV COULD FRACTURE AND CREATE AN 'ENGINE SERVICE SOON' LIGHT. THAT LIGHT WAS ACTIVATED IN FEBRUARY. I TOOK IT IN, IT'S THE ICV. THEY SAID THEY'D REPLACE THE FUEL TANK AS SOON AS THEY COULD GET PARTS. THEY STILL DON'T HAVE THE REPLACEMENT -- AND SAY IT COULD BE MAY OR JUNE. MEANWHILE THE 'CHECK ENGINE' LIGHT COULD BE ON FOR ICV -- OR IT COULD BE ANOTHER PROBLEM. WITH DRIPPING FUEL OUT IN THE OPEN, IT'S A SAFETY HAZARD -CAN'T BE USED ON A TRIP AND CAN'T BE SOLD/TRADED AS IT'S DEFECTIVE.
NHTSA ODI #10851376
104,000 miles · Feb 13, 2016
Fuel/propulsion System
GAS LEAKING AT FUEL PRESSURE REGULATOR AT 15 DEGREES F. SMELL OF GAS FUMES IN TRUCK LEAD ME TO INVESTIGATE PROBLEM. CAR WAS NOT MOVING. USED REMOTE START ON COLD DAY, GOT IN TRUCK AND SMELL FUMES @ 10AM SATURDAY MORNING. FULL DAYLIGHT, SAW GAS COMMING FROM SEAL OF PART, FUEL PRESSURE REGULATOR.
NHTSA ODI #10825958
165,000 miles · Jan 8, 2016
Fuel/propulsion System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THERE WAS AN ODOR OF FUEL WAS PRESENT INSIDE AND OUTSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE FUEL PUMP AND THE FUEL LINES WERE DAMAGED WHICH WERE CAUSED BY A FAULTY INLET CHECK VALVE . THE VEHICLE WAS NOT REPAIRED. TH…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THERE WAS AN ODOR OF FUEL WAS PRESENT INSIDE AND OUTSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE FUEL PUMP AND THE FUEL LINES WERE DAMAGED WHICH WERE CAUSED BY A FAULTY INLET CHECK VALVE . THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 165,000.
NHTSA ODI #10819009
Mileage unknown · Dec 12, 2015
Fuel/propulsion System
IN 2014 I NOTICED A STRONG ODOR OF GASOLINE ON A REGULAR BASIS COMING FROM MY 2004 CHEVY TRAILBLAZER. I HAD MY LOCAL GARAGE LOOK AT IT AND WAS TOLD THE FUEL TANK ASSEMBLY WAS COMPROMISED AND NEEDED TO BE REPLACED. MILEAGE AT THE TIME OF REPAIR WAS 124,000 AND COST WAS ALMOST $800 PARTS & LABOR. LOOKING ONLINE I NOTICED MANY O…
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IN 2014 I NOTICED A STRONG ODOR OF GASOLINE ON A REGULAR BASIS COMING FROM MY 2004 CHEVY TRAILBLAZER. I HAD MY LOCAL GARAGE LOOK AT IT AND WAS TOLD THE FUEL TANK ASSEMBLY WAS COMPROMISED AND NEEDED TO BE REPLACED. MILEAGE AT THE TIME OF REPAIR WAS 124,000 AND COST WAS ALMOST $800 PARTS & LABOR. LOOKING ONLINE I NOTICED MANY OTHER OWNERS OF THE SAME MAKE/MODEL DEALING WITH THIS ISSUE.
NHTSA ODI #10809795
134,000 miles · Dec 11, 2015
Fuel/propulsion System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE THE VEHICLE WAS PARKED, IT HAD A STRONG ODOR OF FUEL FUMES AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT THERE WERE ALSO A FEW DROPS OF FUEL ON THE GARAGE FLOOR UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT COULD NOT BE DIAGNOSED. …
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE THE VEHICLE WAS PARKED, IT HAD A STRONG ODOR OF FUEL FUMES AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT THERE WERE ALSO A FEW DROPS OF FUEL ON THE GARAGE FLOOR UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT COULD NOT BE DIAGNOSED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 134,000.
NHTSA ODI #10809639
150,300 miles · Dec 9, 2015
Fuel/propulsion System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE VEHICLE EMITTED A STRONG FUEL ODOR WHILE DRIVING AND THE CHECK ENGINE WARNING LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A LEAK CODE AT THE EVAPORATION SYSTEM. THE VEHICLE WAS NOT REPAIRED. TH…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE VEHICLE EMITTED A STRONG FUEL ODOR WHILE DRIVING AND THE CHECK ENGINE WARNING LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A LEAK CODE AT THE EVAPORATION SYSTEM. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 150,300.
NHTSA ODI #10809165
Mileage unknown · Dec 8, 2015
Fuel/propulsion System
ENVIAN UN RECALL CUANDO YA LA GARANTIA SE ACABO Y AHORA NO QUIEREN HONRARLA AUN CUANDO ES UN PROBLEMA DE GASOLINA POR ENDE DE SEGURIDAD.
NHTSA ODI #10809025
NHTSA investigations
4RQ17002 · 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.
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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