NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
261 reports156,000 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…
Read full complaint
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
62,000 miles · Jul 25, 2013
Electrical System
SPEEDOMETER GETS STUCK AT RANDOM PLACES. IMPOSSIBLE TO KNOW HOW FAST YOU ARE GOING. GM RECALLED FOR THIS BUT NOT ON TRAILBLAZERS. *TR
NHTSA ODI #10531817
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…
Read full complaint
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 · Apr 25, 2013
Fuel/propulsion System
DUE TO A SERVICE ENGINE SOON WARNING LIGHT AND SMELLING GAS INSIDE MY VEHICLE, I TOOK MY VEHICLE TO MY LOCAL MECHANIC. HE STATED THERE WAS A CRACK IN THE NECK OF MY FUEL TANK. THE TANK NEEDS TO BE REPLACED. HE ALSO STATED THAT THIS IS A COMMON PROBLEM WITH TRAILBLAZERS. I LOOKED UP ANY RECALLS. FOUND SPECIAL COVERAGE ADJUSTMENT …
Read full complaint
DUE TO A SERVICE ENGINE SOON WARNING LIGHT AND SMELLING GAS INSIDE MY VEHICLE, I TOOK MY VEHICLE TO MY LOCAL MECHANIC. HE STATED THERE WAS A CRACK IN THE NECK OF MY FUEL TANK. THE TANK NEEDS TO BE REPLACED. HE ALSO STATED THAT THIS IS A COMMON PROBLEM WITH TRAILBLAZERS. I LOOKED UP ANY RECALLS. FOUND SPECIAL COVERAGE ADJUSTMENT - FUEL TANK INLET CHECK VALVE FRACTURE#07099A. I CALLED A LOCAL DEALER WHO CONFIRMED THAT WAS RIGHT. HOWEVER MY VIN # DOES NOT FALL UNDER VIN #'S LISTED. THE DEALER CALLED A LOCAL GM REP. AND I WAS OFFERED 40% COVERED BY GM MEANING I WOULD HAVE TO COVER THE OTHER 60%. I DO NOT UNDERSTAND WHY ONLY SOME VIN#'S ARE IN THIS AND NOT ALL OF THEM. IT SEEMS THAT THIS A PROBLEM THAT IS VERY COMMON IN THESE TRAILBLAZERS. I DO NOT FEEL SAFE DRIVING MY FAMILY OF 5 AROUND IN THIS TRAILBLAZER WITH A FRACTURE FUEL TANK INLET CHECK VALVE AND THE STRONG SMELL OF GAS IN THE TRUCK AND RISK OF FIRE FROM GAS LEAKING OUT. THIS SHOULD BE A RECALL ITEM SO THAT THOSE OF US THAT HAVE TRAILBLAZERS NOT WITH IN THE VIN #'S COVERED CAN GET THIS FIXED AND BE SAFE. CHEVROLET/GM SHOULD STEP UP AND MAKE THIS A RECALL THIS IS A HUGE SAFETY ISSUE. *TR
NHTSA ODI #10509610
95,115 miles · Feb 13, 2013
Fuel/propulsion System
DUE TO A SERVICE ENGINE SOON WARNING LIGHT AND SMELLING GAS INSIDE MY VEHICLE, I TOOK MY VEHICLE TO MY LOCAL MECHANIC. HE STATED THERE WAS A CRACK IN THE NECK OF MY FUEL TANK. THE TANK NEEDS TO BE REPLACED. HE ALSO STATED THAT THIS IS A COMMON PROBLEM WITH TRAILBLAZERS. I THEN TOOK THE VEHICLE TO THE GM DEALER WHERE IT WAS PURCH…
Read full complaint
DUE TO A SERVICE ENGINE SOON WARNING LIGHT AND SMELLING GAS INSIDE MY VEHICLE, I TOOK MY VEHICLE TO MY LOCAL MECHANIC. HE STATED THERE WAS A CRACK IN THE NECK OF MY FUEL TANK. THE TANK NEEDS TO BE REPLACED. HE ALSO STATED THAT THIS IS A COMMON PROBLEM WITH TRAILBLAZERS. I THEN TOOK THE VEHICLE TO THE GM DEALER WHERE IT WAS PURCHASED. THEIR INITIAL DIAGNOSIS WAS THE FUEL CAP NEEDED TO BE REPLACED. AT THAT POINT I ASKED THEM TO CHECK FOR A CRACK. THEY DID AND VERIFIED THERE IS A CRACK. I MENTIONED GM CAMPAIGN 07099A - A RECALL FOR TRAILBLAZER EXT'S TO REMEDY THIS PROBLEM BY REPLACING THE FUEL TANK AT NO CHARGE. UNFORTUNATELY, THIS RECALL ONLY AFFECTED CERTAIN VIN #'S AND MINE IS NOT WITHIN THE AFFECTED NUMBER RANGE. I BELIEVE THIS IS A VERY DANGEROUS SAFETY DEFECT THAT SHOULD BE REMEDIED BY THE DEALER AT NO COST TO ME. THE DEALER OFFERED A 50/50 RESOLUTION WHICH TO ME ONLY SERVES TO PROVE THEIR CULPABILITY IN THE MATTER. I DO NOT FEEL SAFE DRIVING THE VEHICLE AND AM VERY CONCERNED FOR MY SAFETY AND THE SAFETY OF MY TWO YEAR OLD GRANDDAUGHTER WHOM I REGULARLY TRANSPORT IN THIS VEHICLE. *TR
NHTSA ODI #10497980
88,000 miles · Feb 12, 2013
Exterior Lighting
I WAS GETTING ON THE EXPRESSWAY & BOTH HEADLIGHTS JUST STOPPED WORKING. I DROVE HOME WITH NO LIGHTS ON THE FRONT OF MY CAR IN THE DARK, VERY VERY VERY UNSAFE. HOW DO ALL THE LIGHTS ON THE FRONT OF YOUR CAR GO OUT ALL AT THE SAME TIME. *TR
NHTSA ODI #10497965
75,234 miles · Feb 3, 2013
Electrical System
2004 CHEVROLET TRAILBLAZER EXT WITH 76,500 MILES ON IT. WHILE DRIVING TO WORK I NOTICED THE OIL PRESSURE GAUGE WAS READING MAXIMUM. I IMMEDIATELY PULLED OVER IN THE DARK ON A BUSY HWY TO CHECK OIL AND IT WAS FULL. THEN APPROX 2 WEEKS LATER THE OIL PRESSURE GAUGE IS POINTING DOWN AND STAYS THERE. NOW THE SPEEDOMETER IS READING 80…
Read full complaint
2004 CHEVROLET TRAILBLAZER EXT WITH 76,500 MILES ON IT. WHILE DRIVING TO WORK I NOTICED THE OIL PRESSURE GAUGE WAS READING MAXIMUM. I IMMEDIATELY PULLED OVER IN THE DARK ON A BUSY HWY TO CHECK OIL AND IT WAS FULL. THEN APPROX 2 WEEKS LATER THE OIL PRESSURE GAUGE IS POINTING DOWN AND STAYS THERE. NOW THE SPEEDOMETER IS READING 80 MPH EVEN WHEN STOPPED. THIS IS A HUGE SAFETY ISSUE. I HAVE SERIOUS DOUBTS AS TO WHETHER THE GAS AND WATER TEMP GAUGE IS READING CORRECTLY. THERE ARE NUMEROUS COMPLAINTS ALREADY FILED ABOUT THIS MODEL AND MANY OTHER CHEVROLET MODELS. RECALLS HAVE BEEN MADE ON SOME MODELS FOR THIS PROBLEM, BUT NOT THIS ONE. CHEVROLET NEEDS TO RECALL THIS MODEL ASAP AND CORRECT THE INFAMOUS PROBLEM THAT THEY ARE WELL AWARE OF. THIS IS A VERY COSTLY REPAIR AND ONE THAT THE CONSUMER SHOULD NOT HAVE TO PAY FOR. *TR
NHTSA ODI #10496229
52,582 miles · Sep 29, 2012
Fuel/propulsion System
I WAS DRIVING DOWN THE ROAD WHEN I RAN OUT OF GAS. IT STILL SHOWED OVER 100 MILES LEFT ON THE GAUGE. THAT WAS ABOUT 3 MONTHS AFTER I PURCHASED THE VEHICLE. ABOUT TWO MONTHS LATER, I HAD THE SAME PROBLEM. I STARTED KEEPING THE GAS ON 3/4 OF A TANK AT ALL TIMES TO MAKE SURE THERE WAS FUEL IN IT. THE PROBLEM KEPT HAPPENING. T…
Read full complaint
I WAS DRIVING DOWN THE ROAD WHEN I RAN OUT OF GAS. IT STILL SHOWED OVER 100 MILES LEFT ON THE GAUGE. THAT WAS ABOUT 3 MONTHS AFTER I PURCHASED THE VEHICLE. ABOUT TWO MONTHS LATER, I HAD THE SAME PROBLEM. I STARTED KEEPING THE GAS ON 3/4 OF A TANK AT ALL TIMES TO MAKE SURE THERE WAS FUEL IN IT. THE PROBLEM KEPT HAPPENING. TODAY, IT WAS ON 200+ MILES AND I RAN OUT. THIS IS RIDICULOUS! DO I REALLY HAVE TO KEEP TRACK OF HOW MANY MILES I PUT ON IT SO I KNOW WHEN I NEED TO REFILL? *TR
NHTSA ODI #10477964
120,000 miles · Sep 26, 2012
Electrical SystemExterior LightingVehicle Speed Control
ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREE…
Read full complaint
ALL GAUGES ON CONTROL PANEL NOT WORKING, BUT ALL SERVICE LIGHTS COME ON CHECK ENGINE, ABS SEAT BELT, REDUCE POWER, BATTERY LIGHTS. SPEED AND FUEL ARE IMPOSSIBLE TO KNOW AS WELL AS WARNINGS TO OBSERVE FROM LIGHTS. 2004 CHEVROLET TRAILBLAZER, SPEEDOMETER WILL SHOW A FASTER SPEED THAN YOU MOVING OR WILL GO TO 0 WHILE ON THE FREEWAY. THE TACH HAS THE SAME PROBLEM. THIS IS A SERIOUS SAFETY ISSUE AND IT SHOULD BE RECALLED NOW. I HEARD THAT THEY HAD THE SAME ISSUE ON PICK-UPS AND THEY WERE RECALLED. MOST INSTRUMENT BACKLIGHTS HAVE BURNED OUT PREVENTING THE SPEEDOMETER AND OTHER GAUGES FROM BEING SEEN AT NIGHT. VERY DANGEROUS. QUICK SEARCH ON INTERNET RESULTS IN A SEVERE EPIDEMIC OF THIS PROBLEM WITH ALL GM SUV'S. A CLASS ACTION LAWSUIT RESULTED IN A NATIONWIDE RECALL FOR THIS PROBLEM FOR ALL SIMILAR VEHICLES BUT NOT THE CHEVY TRAILBLAZER OR GMC ENVOY. THIS SEEMS TO BE A CRIMINAL ACT BY GM. SOMETHING NEEDS TO BE DONE TO PROTECT OWNERS OF THESE VEHICLES. DRIVING DOWN HIGHWAY HEADLIGHTS GO OUT..WHILE DRIVING AT NIGHT THE LOW BEAM LIGHTS WENT OUT, I HAD TO DRIVE HOME WITH HIGH BEAMS ON, HTTP://WWW.ABOUTAUTOMOBILE.COM/COMPLAINT/2004/CHEVROLET/TRAILBLAZER/ELECTRICAL+SYSTEM CHECK OUT ALL THESE OTHER COMPLAINTS THERE ARE HUNDREDS OF THEM AND I AM ONE OF MANY. THIS IS SO DANGEROUS AND A SAFETY HAZARD TO OTHERS AS WELL, PLEASE GET US A RECALL ON THESE CARS THE EXPENSES ARE TREMENDOUS. *TR
NHTSA ODI #10477097
61,384 miles · Sep 7, 2012
Electrical System
THE SPEEDOMETER STARTED TO MALFUNCTION WHILE DRIVING 40 MPH NORTH BOUND ON DAVIS BLVD. THE SPEEDOMETER WAS READING 80 MPH THEN WHEN STOPPED IT WAS STILL READING 80 MPH. IT THEN MOVED PAST THE GAUGE NOT ALLOWING TO KNOW MY ACTUAL SPEED. THIS TO ME IS A CAR SAFETY ISSUE BECAUSE WE NEVER KNOW HOW FAST WE ARE GOING. THE GAS GAUG…
Read full complaint
THE SPEEDOMETER STARTED TO MALFUNCTION WHILE DRIVING 40 MPH NORTH BOUND ON DAVIS BLVD. THE SPEEDOMETER WAS READING 80 MPH THEN WHEN STOPPED IT WAS STILL READING 80 MPH. IT THEN MOVED PAST THE GAUGE NOT ALLOWING TO KNOW MY ACTUAL SPEED. THIS TO ME IS A CAR SAFETY ISSUE BECAUSE WE NEVER KNOW HOW FAST WE ARE GOING. THE GAS GAUGE HAS BEEN MALFUNCTIONING FOR MORE THAT 24 MONTHS. THE CAUTION LIGHT (YELLOW) TURNS ON WHEN YOU NEED TO FILL THE TANK SO WE HAVE BEEN USING THIS LIGHT TO FILL THE CAR WITH GAS. THE GAUGE NEEDS TO BE REPAIRED. SINCE THE CAR IS NOT ABUSED WE FILL THIS IS SOMETHING WHICH SHOULD HAVE LASTED THE REGULAR 100,000 MILES BEFORE THERE WAS A PROBLEM. THE WARRANTY PERIOD IS OVER. FROM TALKING TO OTHER USERS AND REPEATED SEARCHES ONLINE IT SEEM TO BE A REGULAR FAILURE ITEM. I BELIEVE IT SHOULD BE REPAIRED BY GENERAL MOTORS CORPORATION. MANY DRIVERS HAVE HAD TO SPEND LOTS OF MONEY TO HAVE THIS ITEM FIXED IN LESS THAN AVERAGE MEAN TIMES BETWEEN FAILURE OF (100,000 MILES). *TR
NHTSA ODI #10474259
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.