NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
93 reportsClear category filter49,532 miles · Apr 29, 2008
Fuel System, GasolineInjury
CHECK ENGINE LIGHT CAME ON THREE TIMES WITHIN THE FIRST MONTH AND A HALF I OWNED THE USED 04 TRAILBLAZER. IT SEEMS COMMON FROM WHAT MOST PEOPLE POSTED ON THE INTERNET THAT THIS PROBLEM OCCURS ANYWHERE FROM 35 - 55K MILES. THE GAS TANK WOULD CONSTANTLY RELEASE AN ODOR AND I WOULD GET DIZZY EVERY TIME I DROVE THE TRUCK. I TOOK I…
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CHECK ENGINE LIGHT CAME ON THREE TIMES WITHIN THE FIRST MONTH AND A HALF I OWNED THE USED 04 TRAILBLAZER. IT SEEMS COMMON FROM WHAT MOST PEOPLE POSTED ON THE INTERNET THAT THIS PROBLEM OCCURS ANYWHERE FROM 35 - 55K MILES. THE GAS TANK WOULD CONSTANTLY RELEASE AN ODOR AND I WOULD GET DIZZY EVERY TIME I DROVE THE TRUCK. I TOOK IT IN TO THE DEALER AND THEY SAID IT WAS JUST A LEAK IN THE GAS CAP AND THAT IT NEEDED TO BE REPLACED. ONCE THE WARRANTY EXPIRED (ONE WEEK LATER), THE S.E..LIGHT CAME ON AGAIN AND THE DEALER SERVICE DEPARTMENT STATED THAT THERE WAS A CRACK IN THE NECK OF THE TANK AND THAT IT NEEDED TO BE REPLACED. I PICKED IT UP TODAY AFTER IT WAS REPLACED AND TOTALED TO $1,430. GM KNOWS ABOUT THIS PROBLEM AND HOPEFULLY THE LETTER THAT I HAVE WRITTEN TO THEM WILL SOLVE THIS ISSUE AND THAT I WILL EITHER BE REIMBURSED OR COMPENSATED SOMEHOW FOR LOST WORK AND INTEREST PAID ON THIS BILL. *TR
NHTSA ODI #10226063
36,500 miles · Apr 11, 2008
Fuel System, Gasoline
SERVICE ENGINE LIGHT ON , JUST OUT OF WARRANTY AT THE TIME. GARAGE FOUND LEAK IN FUEL TANK FILL NECK. GASOLINE SMELL. *TR
NHTSA ODI #10224243
33,000 miles · Apr 3, 2008
Fuel System, Gasoline
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING AT VARIOUS SPEEDS, THE CHECK ENGINE LIGHT ILLUMINATED AND THE MESSAGE CENTER INFORMED THE CONTACT TO TIGHTEN THE GAS CAP. WHEN HE ATTEMPTED TO TIGHTEN THE GAS CAP, HE NOTICED A THIN CRACK IN THE FILLER NECK. WHEN HE FILLS THE GAS TANK, THERE WAS SOME LEAKAGE FROM…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING AT VARIOUS SPEEDS, THE CHECK ENGINE LIGHT ILLUMINATED AND THE MESSAGE CENTER INFORMED THE CONTACT TO TIGHTEN THE GAS CAP. WHEN HE ATTEMPTED TO TIGHTEN THE GAS CAP, HE NOTICED A THIN CRACK IN THE FILLER NECK. WHEN HE FILLS THE GAS TANK, THERE WAS SOME LEAKAGE FROM THE CRACK OF THE FILLER NECK. THE CONTACT HAS TAKEN THE VEHICLE TO THE DEALER, BUT IT WAS NOT SERVICED BECAUSE THE WARRANTY WAS EXPIRED. THE CURRENT MILEAGE WAS 34,000 AND FAILURE MILEAGE WAS 33,000. UPDATED 04/22/08. *LJ THE PIPE TO THE GAS TANK WAS COMPOSED OF PLASTIC. IT HAS A CRACK ABOUT 1/2 INCHES LONG AT THE GAS CAP AREA, THUS ALLOWING VAPORS TO ESCAPE THE TANK. UPDATED
NHTSA ODI #10223266
37,500 miles · Mar 2, 2008
Fuel System, Gasoline
2004 CHEVY TRAILBLAZER. GAS LEAK WHERE THE FILLER NECK CONNECTS TO THE TANK. I HAVE SEEN MANY, MANY OF THESE ON THE FORUMS. GM HAS A BAD DESIGN HERE. *TR
NHTSA ODI #10219804
46,540 miles · Feb 23, 2008
Fuel System, Gasoline
CORRODED (LEAKING) METAL ELBOW FROM THE FUEL PUMP MODULE TO THE GAS LINES. FAILURE OF THE METAL ELBOW CAUSED GAS TO BE PUMPED ONTO THE TOP OF FUEL TANK AND SURROUNDING AREAS WHILE DRIVING WITH JUST A HINT OF A GAS SMELL INSIDE THE VEHICLE. THE DEFECTIVE FUEL MODULE WAS REPLACED AT AN INDEPENDENT AUTO REPAIR SHOP. THE TECHNICIAN…
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CORRODED (LEAKING) METAL ELBOW FROM THE FUEL PUMP MODULE TO THE GAS LINES. FAILURE OF THE METAL ELBOW CAUSED GAS TO BE PUMPED ONTO THE TOP OF FUEL TANK AND SURROUNDING AREAS WHILE DRIVING WITH JUST A HINT OF A GAS SMELL INSIDE THE VEHICLE. THE DEFECTIVE FUEL MODULE WAS REPLACED AT AN INDEPENDENT AUTO REPAIR SHOP. THE TECHNICIAN SHOWED ME THE OLD PART AND WHERE IT WAS LEAKING. CORROSION WAS VERY HEAVY ON THE ELBOWS. *TR
NHTSA ODI #10218941
100,000 miles · Feb 10, 2008
Fuel System, Gasoline
GAS LEAKING FROM GAS TANK AND CAUSING A PUDDLE OF GAS TO FORM UNDER VEHICLE. VEHICLES IS A 2004 CHEVY TRAILBLAZER. REFER TO NHTSA ACTION # PE07013. *TR
NHTSA ODI #10217571
71,206 miles · Feb 5, 2008
Fuel System, Gasoline
I OWN A 2004 CHEVROLET TRAILBLAZER THAT UPON TRYING TO START SPRAYED GAS ALL OVER THE GROUND AND MY KIDS GETTING IN CAR. I HAD VEHICLE TOWED TO DEALER JUST TO FIND THERE WAS NOTHING THEY WOULD DO SINCE I HAVE 70,000 MILES ON VEHICLE . THE DEALER SAID THE FUEL PUMP HAD RUSTED THROUGH AND NEEDED REPLACING AT A COST OF 1,200.00$. S…
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I OWN A 2004 CHEVROLET TRAILBLAZER THAT UPON TRYING TO START SPRAYED GAS ALL OVER THE GROUND AND MY KIDS GETTING IN CAR. I HAD VEHICLE TOWED TO DEALER JUST TO FIND THERE WAS NOTHING THEY WOULD DO SINCE I HAVE 70,000 MILES ON VEHICLE . THE DEALER SAID THE FUEL PUMP HAD RUSTED THROUGH AND NEEDED REPLACING AT A COST OF 1,200.00$. SHOULD A $25,000.00 AMERICAN MADE SUV LAST MORE THAN 4 YEARS??? *TR
NHTSA ODI #10217065
30,000 miles · Dec 31, 2007
Fuel System, Gasoline
I AM THE FIRST AND ONLY OWNER OF A 2004 CHEVROLET TRAILBLAZER. AROUND 25,000 MILES, SES LIGHT CAME ON, GOT SERVICED UNDER WARRANTY WITH A BURNED OUT O2 SENSOR AS THE CAUSE. AT 30, 000 MILES, THE SES LIGHT CAME ON AGAIN. I TOOK IT TO THE DEALERSHIP (OUT OF WARRANTY) AND PAID $80 FOR DIAGNOSTICS. SERVICE REP CAME BACK SAYING V…
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I AM THE FIRST AND ONLY OWNER OF A 2004 CHEVROLET TRAILBLAZER. AROUND 25,000 MILES, SES LIGHT CAME ON, GOT SERVICED UNDER WARRANTY WITH A BURNED OUT O2 SENSOR AS THE CAUSE. AT 30, 000 MILES, THE SES LIGHT CAME ON AGAIN. I TOOK IT TO THE DEALERSHIP (OUT OF WARRANTY) AND PAID $80 FOR DIAGNOSTICS. SERVICE REP CAME BACK SAYING VEHICLE WAS FINE, CODES WERE IN THE COMPUTER'S HISTORY AND NO PROBLEMS EXIST. TWO DAYS LATER, SES LIGHT POPS BACK UP. DUE TO THE WEATHER, I GARAGED MY TRAILBLAZER AND BEGAN TO SMELL FUEL INSIDE MY HOUSE, AND WAS EVEN STRONGER IN THE GARAGE. RAW FUEL WAS LEAKING OUT FROM UNDER THE GAS TANK, AND PARTS WERE DOUSED. I CALL GM, EXPLAIN THE PROBLEM AND BASICALLY WAS TOLD THERE WERE NO RECALLS/SPECIAL REPAIRS ETC. ON 2004 MODELS. THEY DID CALL THE DEALERSHIP AND WILL HAVE A REP CALL ME BACK. *TR
NHTSA ODI #10213295
Mileage unknown · Sep 28, 2007
Fuel System, Gasoline
I HAVE A 2004 CHEVY TRAILBLAZER AND FROM DAY ONE I'VE HAD PROBLEMS WITH GAS OVERFLOWING OUT OF MY VEHICLE WHEN PUMPING GAS IN TO IT. I'M NOT TRYING TO TOP OFF THE TANK, AT THE FIRST CLICK I STOP PUMPING AND GAS OVERFLOWS OUTSIDE OF THE VEHICLE ALL OVER MY CAR, MY FEET AND LEGS AND THE GROUND. SOMETIMES I DON'T EVEN GET THE WARNI…
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I HAVE A 2004 CHEVY TRAILBLAZER AND FROM DAY ONE I'VE HAD PROBLEMS WITH GAS OVERFLOWING OUT OF MY VEHICLE WHEN PUMPING GAS IN TO IT. I'M NOT TRYING TO TOP OFF THE TANK, AT THE FIRST CLICK I STOP PUMPING AND GAS OVERFLOWS OUTSIDE OF THE VEHICLE ALL OVER MY CAR, MY FEET AND LEGS AND THE GROUND. SOMETIMES I DON'T EVEN GET THE WARNING CLICK THAT IT'S FULL. IT DOESN'T DO IT ALL THE TIME SO WHEN I'VE TAKEN IT TO MY DEALERSHIP THEY SAY THEY CAN'T DUPLICATE THE PROBLEM. I'VE MET OTHER TRAILBLAZER OWNERS AT THE PUMP AND THEY SAY THEY HAVE THE SAME PROBLEM. THIS DOESN'T SEEM SAFE OR ENVIRONMENTALLY SOUND. I HAVE HAD THE VEHICLE FOR 4 YEARS AND HAVE TRIED MANY DIFFERENT GAS STATIONS/PUMPS. *JB
NHTSA ODI #10204382
12,000 miles · Sep 16, 2007
Fuel System, Gasoline
WHEN FILLING UP WITH GAS, IT SPEWS FROM THE TANK WHEN GAS NOZZLE IS REMOVED. IT DOES NOT MATTER HOW MUCH GAS IS IN TANK & HAPPENS EVEN WHEN TANK IS NOT BEING TOPPED OFF. ALSO WHEN FILLING, YOU MUST CONSTANTLY REPOSITION THE NOZZLE BECAUSE OF GAS BUILD UP IN TANK LINE WILL INADVERTENTLY CAUSE PUMP TO TURN OFF. THIS HAS HAPPENED O…
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WHEN FILLING UP WITH GAS, IT SPEWS FROM THE TANK WHEN GAS NOZZLE IS REMOVED. IT DOES NOT MATTER HOW MUCH GAS IS IN TANK & HAPPENS EVEN WHEN TANK IS NOT BEING TOPPED OFF. ALSO WHEN FILLING, YOU MUST CONSTANTLY REPOSITION THE NOZZLE BECAUSE OF GAS BUILD UP IN TANK LINE WILL INADVERTENTLY CAUSE PUMP TO TURN OFF. THIS HAS HAPPENED ON NUMEROUS OCCASIONS, HOWEVER LAST NIGHT WAS THE FINAL STRAW, TRAILBLAZER HAD A QUARTER TANK OF GAS, AFTER PUMPING IN LESS THAN A GALLON, NOZZLE/PUMP STARTED ITS CLICKING/AUTO SHUT OFF. I REMOVED THE NOZZLE TO REPOSITION IT AS USUAL & UPON REMOVAL OF NOZZLE GAS SPRAYED (LIKE SPRAYING FROM A HOSE NOZZLE)FROM THE TANK AS IF UNDER PRESSURE. I WAS COMPLETELY COVERED WITH GAS FROM THE WAIST DOWN, I'M NOT TALKING ABOUT A LIGHT SPRAY BUT SOAKED THROUGH MY CLOTHES TO THE SKIN WITH GAS. BASED ON THE AMOUNT OF GAS LEFT ON THE GROUND I ESTIMATE THAT 2 OR 3 GALLONS SPRAYED FROM THE TANK, THE ONLY WAY IT WAS STOPPED WAS BY PUTTING THE CAP ON. ALTHOUGH NOT SERIOUSLY INJURED I AM NOW COVERED IN A RASH FROM THE GAS FROM THE WAIST DOWN. *JB
NHTSA ODI #10203111
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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