NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
261 reports154,654 miles · Dec 6, 2011
Air Bags
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 45 MPH, BOTH THE DRIVER AND PASSENGER SIDE AIR BAGS DEPLOYED WITHOUT IMPACT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE BOTH AIR BAGS WERE BEING REPLACED. THE MECHANIC WAS UNABLE TO DETERMINE THE CAUSE OF FAILURE. THE M…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 45 MPH, BOTH THE DRIVER AND PASSENGER SIDE AIR BAGS DEPLOYED WITHOUT IMPACT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE BOTH AIR BAGS WERE BEING REPLACED. THE MECHANIC WAS UNABLE TO DETERMINE THE CAUSE OF FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE MALFUNCTION. THE APPROXIMATE FAILURE MILEAGE WAS 154,654.
NHTSA ODI #10438759
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
56,500 miles · Aug 29, 2011
Electrical System
THE SPEEDOMETER IS NOT REGISTERING THE CORRECT SPEED, JUMPS AROUND WHILE DRIVING AND HAS AFFECTED THE CRUISE CONTROL. I FOUND THAT THIS ISSUE IS THE SAME AS NHTSA ITEM # 10023585 FOR MOST SIMILAR GM VEHICLES, BUT FOR SOME REASON, THIS FAMILY OF GM TRUCKS WAS NOT INCLUDED IN THE REPORTED ISSUE. WHEN THE VEHICLE IS STOPPED, THE S…
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THE SPEEDOMETER IS NOT REGISTERING THE CORRECT SPEED, JUMPS AROUND WHILE DRIVING AND HAS AFFECTED THE CRUISE CONTROL. I FOUND THAT THIS ISSUE IS THE SAME AS NHTSA ITEM # 10023585 FOR MOST SIMILAR GM VEHICLES, BUT FOR SOME REASON, THIS FAMILY OF GM TRUCKS WAS NOT INCLUDED IN THE REPORTED ISSUE. WHEN THE VEHICLE IS STOPPED, THE SPEEDOMETER NEEDLE DROPS WELL BELOW 0 AND THEN JUMPS AROUND WHEN THE VEHICLE STARTS MOVING. BASED ON CHECKS WITH OUR GPS, THE SPEEDOMETER IS OFF BY AS MUCH AS 20 MPH. *TR
NHTSA ODI #10422456
75,000 miles · Aug 13, 2011
Electrical SystemEngine And Engine CoolingFire
THIS VEHICLE HAD BEEN PARKED IN THE DRIVEWAY FROM 7:45 PM, (AUGUST 10, 2011). I WAS AWAKENED AT APPROX. 3:55 AM ON 8-10-2011 BY HEARING A MUFFLED BOOM. AT 4:00 AM (AUG. 11, 2011) I HEARD A LOUD BANG TYPE NOISE. I IMMEDIATELY GOT UP AND WENT TO INVESTIGATE. I WENT OUTSIDE AND FOUND MY 2004 TRAILBLAZER (EXT) ON FIRE FROM TH…
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THIS VEHICLE HAD BEEN PARKED IN THE DRIVEWAY FROM 7:45 PM, (AUGUST 10, 2011). I WAS AWAKENED AT APPROX. 3:55 AM ON 8-10-2011 BY HEARING A MUFFLED BOOM. AT 4:00 AM (AUG. 11, 2011) I HEARD A LOUD BANG TYPE NOISE. I IMMEDIATELY GOT UP AND WENT TO INVESTIGATE. I WENT OUTSIDE AND FOUND MY 2004 TRAILBLAZER (EXT) ON FIRE FROM THE ENGINE BAY AND JUST BEGINNING TO FLAME INSIDE THE VEHICLE'S PASSENGER COMPARTMENT AT THE DASHBOARD..IT ONLY TOOK MINUTES BEFORE THE VEHICLE WAS FULLY INVOLVED. THE FIRE BEGAN IN THE ENGINE BAY. THE FIRE MARSHALL REPORT IS STILL PENDING AND I WAS INFORMED IT WOULD TAKE 6 TO 8 WEEKS BEFORE IT WAS AVAILABLE. APPROX. TWO TO THREE MONTHS PRIOR, I TOOK THE VEHICLE TO A REPAIR GARAGE TO FIX THE LOW BEAM HEADLIGHTS (THEY HAD FAILED AND CHANGING THE BULBS WAS NO HELP. IT TURNED OUT THAT IT WAS A FAILED RELAY, WHICH WAS REPLACED. IT WAS A COUPLE OF WEEKS LATER THAT I HAD TO REPLACE THE VEHICLE'S BATTERY AS IT HAD GONE DEAD AND WOULD NOT TAKE A CHARGE. THE OLD BATTERY WAS ABOUT THREE YEARS OLD. THERE WERE NO OTHER BATTERY/HEADLIGHT ISSUES AFTER THESE REPAIRS. NO TOOLS OR OTHER PARTS WERE DROPPED INTO THE ENGINE BAY, OR LEFT IN THE BAY. I WAS AN AIRCRAFT MECHANIC AND OLD HABITS OF KEEPING RACK OF MY TOOLS NEVER DIE AND ALL TOOLS USED WERE ACCOUNTED FOR. THE ROADS WERE DRY WHERE IT WAS DRIVEN THERE WAS NO RAIN AT THE HOUSE ALL NIGHT. I REPORTED THIS TO CHEVROLET THAT DAY. AS A RESULT OF THE FIRE, THE EAVES OF THE HOUSE OVER THE GARAGE CAUGHT FIRE, MY WIFE, SON AND MYSELF HAD MINOR CARBON MONOXIDE POISONING, MY WORK TRUCK WAS DAMAGED BY THE HEAT OF THE FIRE, SO I CANNOT WORK (SELF EMPLOYED) UNTIL I GET A REPLACEMENT (NO RENTAL COMPANY WILL LET ME USE A TRUCK TO WORK FROM AS I NEED TO CARRY LARGE QUANTITIES OF CHLORINE IN MY PRESSURE CLEANING BUSINESS. THERE HAVE BEEN NO OTHER PROBLEMS OF THIS KIND BEFORE WITH THIS VEHICLE. *TR
NHTSA ODI #10419294
Mileage unknown · Aug 2, 2011
Electrical SystemExterior Lighting
THE RPM GAUGE, BATTERY GAUGE AND THE FUEL GAUGE STOPPED WORKING. FIRST THE RPM GAUGE STOPPED AND THEN ABOUT A YEAR LATER THE BATTERY GAUGE STOPPED AND LAST WAS THE FUEL GAUGE THAT STOPPED. THE FUEL GAUGE STOPPED WORKING JUST A COUPLE OF WEEKS AFTER THE BATTERY GAUGE. I AM ALSO HAVING PROBLEMS WITH THE DAYTIME RUNNING LIGHTS N…
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THE RPM GAUGE, BATTERY GAUGE AND THE FUEL GAUGE STOPPED WORKING. FIRST THE RPM GAUGE STOPPED AND THEN ABOUT A YEAR LATER THE BATTERY GAUGE STOPPED AND LAST WAS THE FUEL GAUGE THAT STOPPED. THE FUEL GAUGE STOPPED WORKING JUST A COUPLE OF WEEKS AFTER THE BATTERY GAUGE. I AM ALSO HAVING PROBLEMS WITH THE DAYTIME RUNNING LIGHTS NOT STAYING ON PERIODICALLY. THE DAYTIME RUNNING LIGHTS WILL GO OUT ABOUT TWICE A YEAR AND MAINLY AT NIGHT. *KB
NHTSA ODI #10416644
81,524 miles · Aug 1, 2011
Electrical System
THE INSTRUMENT CLUSTER STOPPED WORKING, ONLY THE TEMP GAUGE AND THE FUEL GAUGE WORKS. THE SPEEDOMETER, TACHOMETER, OIL PRESSURE GAUGES DO NOT WORK. I BELIEVE GENERAL MOTORS NEEDS TO ISSUE A RECALL ON THIS AS THIS IS A COMMON PROBLEM WITH THESE VEHICLES. *KB
NHTSA ODI #10416586
120,000 miles · Jul 25, 2011
Engine And Engine Cooling
THE EXT. MANIFOLD ON MY 2004 TRL BLAZER HAS A LEAK IN THE MAIFOLD BODY. THE VEHICLE HAS APPROX. 120000 MILES ON IT. THIS SHOULD BE A RECALL ITEM FOR MANUFACTURING DEFECT, BUT GM HAS NOT AS OF YET, ISSUED A RECALL. IT IS A COSTLY REPAIR, AS WELL AS A SAFETY CONCERN, GIVEN THAT THE EXHAUST FUMES CAN ENTER THE PASSENGER COMPARTMENT…
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THE EXT. MANIFOLD ON MY 2004 TRL BLAZER HAS A LEAK IN THE MAIFOLD BODY. THE VEHICLE HAS APPROX. 120000 MILES ON IT. THIS SHOULD BE A RECALL ITEM FOR MANUFACTURING DEFECT, BUT GM HAS NOT AS OF YET, ISSUED A RECALL. IT IS A COSTLY REPAIR, AS WELL AS A SAFETY CONCERN, GIVEN THAT THE EXHAUST FUMES CAN ENTER THE PASSENGER COMPARTMENT OF THE VEHICLE. I HAVE OWNED MANY GM VEHICLES OVERTIME, AND NEVER SEEN THIS BEFORE. *TR
NHTSA ODI #10415012
95,000 miles · Jun 27, 2011
Electrical System
SPEEDOMETER GOES COMPLETELY OUT, FALLING BELOW ZERO WHILE TRAVELING ON ROAD, TYPICALLY AFTER CRUISE CONTROL HAS BEEN USED, MULTIPLE WARNING LIGHTS FLASH WHILE ONSTAR AND COMPUTER SHOWING NO CODES AFTER 4X4 USED. UNABLE TO DIAGNOSE PROBLEMS BECAUSE PROBLEM IS INTERMITTENT AND AFTER VEHICLE PARKED FOR SEVERAL HOURS PROBLEM IS GONE…
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SPEEDOMETER GOES COMPLETELY OUT, FALLING BELOW ZERO WHILE TRAVELING ON ROAD, TYPICALLY AFTER CRUISE CONTROL HAS BEEN USED, MULTIPLE WARNING LIGHTS FLASH WHILE ONSTAR AND COMPUTER SHOWING NO CODES AFTER 4X4 USED. UNABLE TO DIAGNOSE PROBLEMS BECAUSE PROBLEM IS INTERMITTENT AND AFTER VEHICLE PARKED FOR SEVERAL HOURS PROBLEM IS GONE. OCCURS ABOUT ONCE A WEEK. HAS CAUSED SEVERAL INSTANCES OF BEING UNABLE TO DETERMINE HOW FAST YOUR TRAVELING. 2004 CHEVY TRAILBLAZER EXT LT 4X4 I6 ENGINE. *TR
NHTSA ODI #10409127
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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