NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
1,081 reports95,272 miles · Feb 23, 2010
Air BagsCrashInjury
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE THE CONTACT WAS DRIVING 35 MPH HE CRASHED INTO ANOTHER VEHICLE AND THEN INTO A LIGHT POLE WHICH DESTROYED THE VEHICLE; HOWEVER, DURING THE CRASH NONE OF THE AIR BAGS DEPLOYED. THE DRIVER AND PASSENGER WERE INJURED. NO ONE WAS INJURED IN THE OTHER VEHICLE. THE VEHICLE WAS DI…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE THE CONTACT WAS DRIVING 35 MPH HE CRASHED INTO ANOTHER VEHICLE AND THEN INTO A LIGHT POLE WHICH DESTROYED THE VEHICLE; HOWEVER, DURING THE CRASH NONE OF THE AIR BAGS DEPLOYED. THE DRIVER AND PASSENGER WERE INJURED. NO ONE WAS INJURED IN THE OTHER VEHICLE. THE VEHICLE WAS DIAGNOSED BY THE DEALERSHIP WHO STATED THAT NO FAILURES COULD BE FOUND. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 95,272 UPDATED 03/30/10. *LJ ACCORDING TO GM, THE NOTICE ON THE DASH READOUT STATED THE AIR BAGS DEPLOYED. UPDATED 06/30/10.*JB
NHTSA ODI #10313103
48,000 miles · Feb 20, 2010
Electrical System
SPEEDOMETER STOPPED WORKING ON MY 2004 CHEVY TRAIL BLAZER DEALER SAID IT WAS NOT COVERED UNDER WARRANTY THE CAR HAD 48000 MILES ON IT WHEN IT STOPPED WORKING. *TR
NHTSA ODI #10312391
Mileage unknown · Feb 18, 2010
Engine And Engine CoolingFire
2004 CHEVROLET TRAILBLAZER ENGINE COMPARTMENT CAUGHT FIRE WHILE DRIVING ON THE OHIO TURNPIKE. *KB OHIO TRAFFIC CRASH REPORT# 10-0001-91 UPDATED 04/15/10 *BF
NHTSA ODI #10312109
36,500 miles · Feb 18, 2010
Service Brakes, HydraulicCrash
WHILE STOPPED BEHIND A TRUCK AT A TRAFFIC LIGHT, MY 2004 CHEVY TRAIL BLAZER STARTED MOVING FORWARD WHILE MY FOOT WAS STILL ON THE BRAKE PEDAL. MY VEHICLE WOULD NOT STOP AND COLLIDED IN THE REAR OF THE TRUCK JUST AHEAD OF ME WHILE STOPPED AT THE TRAFFIC LIGHT. *TR
NHTSA ODI #10311925
70,000 miles · Feb 17, 2010
Electrical System
I HAVE A 2004 CHEVROLET TRAILBLAZER. THE SPEEDOMETER, THE FUEL GAUGE AND THE TACHOMETER NO LONGER WORKS ON THIS VEHICLE. WHEN I CALLED THE CHEVROLET CUSTOMER SERVICE CENTER, TO CHECK FOR A RECALL, I WAS TOLD THAT THERE WAS NO RECALL FOR THE TRAILBLAZER. THERE WAS HOWEVER A RECALL FOR THE EXACT SAME PROBLEM ON THE CHEVROLET AVAL…
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I HAVE A 2004 CHEVROLET TRAILBLAZER. THE SPEEDOMETER, THE FUEL GAUGE AND THE TACHOMETER NO LONGER WORKS ON THIS VEHICLE. WHEN I CALLED THE CHEVROLET CUSTOMER SERVICE CENTER, TO CHECK FOR A RECALL, I WAS TOLD THAT THERE WAS NO RECALL FOR THE TRAILBLAZER. THERE WAS HOWEVER A RECALL FOR THE EXACT SAME PROBLEM ON THE CHEVROLET AVALANCHE, TAHOE AND SUBURBAN. I JUST CANT UNDERSTAND WHY CHEVROLET WILL NOT RECALL THE TRAILBLAZER FOR THE EXACT SAME PROBLEM. MY SPEEDOMETER SOMETIMES REGISTERS TO THE POINT OF SEEING NO NUMBERS ON THE NEEDLE. THE GAS GAUGE RARELY REGISTERS THAT I EVEN HAVE ANY GAS. I HAVE TO KEEP UP WITH MY GAS MANUALLY AND WITH MY TRIP ODOMETER. I FIND THIS VERY DISTURBING THAT CHEVROLET WILL NOT RECALL THE TRAILBLAZER. WHAT CAN I DO AS A CONSUMER TO HELP CHEVROLET MAKE THIS OBVIOUS PROBLEM RIGHT? *TR
NHTSA ODI #10311559
42,397 miles · Feb 17, 2010
Electrical System
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING 70 MPH THE CONTACT NOTICED THAT THE SPEEDOMETER INCREASED FROM 70 MPH TO 120 MPH. ALTHOUGH THE SPEEDOMETER READ 120 MPH THE VEHICLE WAS NOT TRAVELING AT THAT SPEED. THE CONTACT TOOK THE VEHICLE TO A DEALER REGARDING THE INSTRUMENT PANEL AND THEY STATED THAT IT NEE…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING 70 MPH THE CONTACT NOTICED THAT THE SPEEDOMETER INCREASED FROM 70 MPH TO 120 MPH. ALTHOUGH THE SPEEDOMETER READ 120 MPH THE VEHICLE WAS NOT TRAVELING AT THAT SPEED. THE CONTACT TOOK THE VEHICLE TO A DEALER REGARDING THE INSTRUMENT PANEL AND THEY STATED THAT IT NEEDED TO BE REPLACED. THE CONTACT HAS REVIEWED CONCERNS REGARDING THE INSTRUMENT CLUSTER FOR HIS YEAR MAKE AND MODEL AND SINCE THERE WAS A RELATED RECALL, THE MANUFACTURER SHOULD BE RESPONSIBLE FOR THE REPAIRS. THE FAILURE MILEAGE WAS 42,397. UPDATED 3/16/10 *CN THE CONSUMER WAS INFORMED HIS VEHICLE WAS NOT INCLUDED IN THE RECALL, BECAUSE THE INSTRUMENT CLUSTER PANEL WAS MADE BY ANOTHER MANUFACTURER. UPDATED 06/11/10.*JB
NHTSA ODI #10311492
69,000 miles · Feb 16, 2010
Electrical System
SPEEDOMETER MALFUNCTIONS AT VARIOUS TIMES. ON CARCOMPLAINTS.COM THERE ARE 46 COMPLAINTS OF SPEEDOMETER PROBLEMS WITH THIS MODEL VEHICLE AND NOTHING IS BEING DONE ABOUT THEM AND NOBODY KNOWS WHAT THE FIX IS. ONE GARAGE TOLD ME THE BATTERY WAS BAD SO REPLACING IT WOULD FIX THE PROBLEM, IT DIDN'T. I HAD A SPEED CONTROL SENSOR PUT …
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SPEEDOMETER MALFUNCTIONS AT VARIOUS TIMES. ON CARCOMPLAINTS.COM THERE ARE 46 COMPLAINTS OF SPEEDOMETER PROBLEMS WITH THIS MODEL VEHICLE AND NOTHING IS BEING DONE ABOUT THEM AND NOBODY KNOWS WHAT THE FIX IS. ONE GARAGE TOLD ME THE BATTERY WAS BAD SO REPLACING IT WOULD FIX THE PROBLEM, IT DIDN'T. I HAD A SPEED CONTROL SENSOR PUT IN, AND THAT DIDN'T FIX THE PROBLEM EITHER. NO WARNING LIGHTS ARE COMING ON, SO NOBODY KNOWS WHAT ELSE TO DO. I DON'T HAVE ANY MORE MONEY TO PUT IN THIS VEHICLE. THE BATTERY AND THE SPEED CONTROL SENSOR TOGETHER HAVE COST ME OVER $200. *TR
NHTSA ODI #10311153
119,000 miles · Feb 16, 2010
Electrical System
ALL GAUGES INCLUDING SPEEDOMETER ON 2004 CHEVY TRAILBLAZER STOPPED WORKING!! THOUSANDS OF PEOPLE ARE HAVING THE SAME PROBLEM AND IT IS VERY EXPENSIVE TO FIX AND VERY UNSAFE TO NOT. GM RECALLED ALL KINDS OF GM'S WITH SAME PROBLEM EXCEPT FOR TRAILBLAZER. PLEASE HELP US WITH THIS ONGOING PROBLEM SINCE GM DOESN'T WANT TO STEP UP. *T…
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ALL GAUGES INCLUDING SPEEDOMETER ON 2004 CHEVY TRAILBLAZER STOPPED WORKING!! THOUSANDS OF PEOPLE ARE HAVING THE SAME PROBLEM AND IT IS VERY EXPENSIVE TO FIX AND VERY UNSAFE TO NOT. GM RECALLED ALL KINDS OF GM'S WITH SAME PROBLEM EXCEPT FOR TRAILBLAZER. PLEASE HELP US WITH THIS ONGOING PROBLEM SINCE GM DOESN'T WANT TO STEP UP. *TR
NHTSA ODI #10310857
Mileage unknown · Feb 16, 2010
Engine And Engine Cooling
2004 TRAILBLAZER ,SES LIGHT ON ..CODE..SECONDARY AIR PUMP FAILURE. I REPAIRED $600.00 + NEEDED TO DO SO TO PASS EMISSIONS AND GET NEW PLATES. 2 YRS LATER ,SAME CODE,SAME ACTION REQUIRED TO RE-NEW PLATES. *TR
NHTSA ODI #10310856
70,000 miles · Feb 14, 2010
Fuel System, GasolineCrash
MY 2004 TRAILBLAZER KICKED INTO FULL SPEED WHILE I WAS TRAVELING IN AN ICY ROAD AT 20 MPH. IT AUTOMATICALLY SWITCHED TO 4 WHEEL DRIVE, SPUN AT A 90 DEG. WENT INTO A DEEP DITCH, SPUN BACK STRAIGHT AND HEADED UP THE DITCH, AGAIN FULL SPEED, INTO A CULVERT AND TOTALED THE VEHICLE. BOTH AIR BAG SENSORS WERE KNOCKED OFF THE VEHICLE A…
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MY 2004 TRAILBLAZER KICKED INTO FULL SPEED WHILE I WAS TRAVELING IN AN ICY ROAD AT 20 MPH. IT AUTOMATICALLY SWITCHED TO 4 WHEEL DRIVE, SPUN AT A 90 DEG. WENT INTO A DEEP DITCH, SPUN BACK STRAIGHT AND HEADED UP THE DITCH, AGAIN FULL SPEED, INTO A CULVERT AND TOTALED THE VEHICLE. BOTH AIR BAG SENSORS WERE KNOCKED OFF THE VEHICLE AND NEITHER ONE OPENED. I WAS NOT INJURED. SHOOK UP A LITTLE. TRAVELING ALONE AND COMING HOME FROM CHURCH ON A SUNDAY MORNING AT NOON. *TR
NHTSA ODI #10310334
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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