NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
1,081 reports55,000 miles · Jan 15, 2009
Fuel System, Gasoline
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT HIS GAS TANK FILLER NECK FAILED AND WAS LOOSE. AS A RESULT, FUEL LEAKS OUT. THE MANUFACTURER AND DEALER STATED THAT THE VIN WAS NOT COVERED UNDER THE RECALL AND THEY ONLY OFFERED TO PAY 50% OF THE REPAIR COST. THE FAILURE MILEAGE WAS 55,000. UPDATED …
Read full complaint
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
NHTSA ODI #10255216
78,000 miles · Jan 13, 2009
Electrical System
I HAD BEEN DRIVING WITH A FAULTY SPEEDOMETER IN MY 2004 CHEVY TRAILBLAZER FOR SOME TIME WITHOUT EVEN KNOWING IT WAS NOT WORKING PROPERLY. INABILITY TO GAUGE SPEED IS A MAJOR SAFETY CONCERN IN MY OPINION AND THE PROBLEM IS NOT LIMITED TO MY VEHICLE. IT IS A WELL KNOWN DEFECT AFFECTING GM CLUSTERS, SO MUCH SO THAT IS HAS BEEN THE …
Read full complaint
I HAD BEEN DRIVING WITH A FAULTY SPEEDOMETER IN MY 2004 CHEVY TRAILBLAZER FOR SOME TIME WITHOUT EVEN KNOWING IT WAS NOT WORKING PROPERLY. INABILITY TO GAUGE SPEED IS A MAJOR SAFETY CONCERN IN MY OPINION AND THE PROBLEM IS NOT LIMITED TO MY VEHICLE. IT IS A WELL KNOWN DEFECT AFFECTING GM CLUSTERS, SO MUCH SO THAT IS HAS BEEN THE SOURCE OF A RECALL IN THE SILVERADO. THAT, HOWEVER DOES NOTHING TO HELP THE OTHER THOUSANDS OF PEOPLE WITH THESE DEFECTIVE AND DANGEROUS CLUSTERS MADE BY THE SAME COMPANY DRIVING IN OTHER GM VEHICLES LIKE THE TRAILBLAZER WITH NO INDICATION OF THEIR SPEED. A PRODUCT THAT AFFECTS SAFETY LIKE THIS DOES SHOULD BE IMMEDIATELY RECALLED FOR ALL AFFECTED VEHICLES. WHEN I SEARCHED FOR GM CLUSTER THERE ARE WELL OVER 500 COMPLAINTS ABOUT THESE AND NO LESS THAN 3 COMPANIES OUT THERE INDEPENDENTLY FIXING THEM WHILE GM DOES NOTHING ABOUT THE PROBLEM. THANK YOU FOR YOUR ATTENTION TO THIS SERIOUS MATTER. *TR
NHTSA ODI #10254899
50,000 miles · Jan 13, 2009
Electrical System
2004 CHEVROLET TRAILBLAZER LS WITH 50,000 MILES SPEEDOMETER STOPPED WORKING. SOMETIMES IT SHOWS 40, SOMETIMES IT SHOWS 120MPH WHILE PARKED IN MY DRIVEWAY. FOUND TO BE A COMMON PROBLEM IN THIS MODEL, BUT NO RECALL. THIS IS VERY UNSAFE FOR ALL DRIVERS AND PASSENGERS. JANUARY 13TH, 2009 - HAVE APPOINTMENT TO REPLACE ENTIRE IN…
Read full complaint
2004 CHEVROLET TRAILBLAZER LS WITH 50,000 MILES SPEEDOMETER STOPPED WORKING. SOMETIMES IT SHOWS 40, SOMETIMES IT SHOWS 120MPH WHILE PARKED IN MY DRIVEWAY. FOUND TO BE A COMMON PROBLEM IN THIS MODEL, BUT NO RECALL. THIS IS VERY UNSAFE FOR ALL DRIVERS AND PASSENGERS. JANUARY 13TH, 2009 - HAVE APPOINTMENT TO REPLACE ENTIRE INSTRUMENT CLUSTER AT A COST OF $500 THAT I HAVE TO PAY. GM SHOULD REPLACE FAULTY PARTS AT NO COST, OR AT LEAST COVER PART OF THE REPLACEMENT. THIS MODEL OF VEHICLE IS UNSAFE TO DRIVE IN THIS CONDITION. WITH OTHER MODELS IN THIS SAME YEAR HAVING A RECALL FOR THE SAME PROBLEM, I DON'T SEE WHY GM CANNOT EXPAND IT TO INCLUDE AN OBVIOUS CONTINUING PROBLEM. PLEASE LOOK INTO THIS MATTER AND HAVE GM RECALL THIS PROBLEM FOR THE SAFETY OF ALL MOTORISTS. *TR
NHTSA ODI #10254861
53,000 miles · Jan 12, 2009
Electrical System
1. SPEEDOMETER ON 2004 CHEVROLET TRAILBLAZER STARTED TO GIVE FALSE READINGS. YOU COULD BE IN A 25 MPH SPEED ZONE AND THE SPEEDOMETER WOULD SHOW A100 MPH. 2. INTERMITTENT. 3. REPLACED SPEEDOMETER ON JANUARY 9, 2009 (54,000 MILES ON CAR). *TR
NHTSA ODI #10254740
71,050 miles · Jan 11, 2009
Electrical System
THE DASHBOARD GAUGES BEGAN DISPLAYING INCORRECT INFORMATION FOLLOWED A DAY LATER BY COMPLETE FAILURE. I KNOW OTHERS WITH THE SAME PROBLEMS. THERE IS NO RECALL FOR THIS ERROR. THERE IS NO WAY TO DETERMINE THE SPEED OF THE CAR. THIS IS A VERY EXPENSE AND COMMON ERROR FOR THE TRAILBLAZER. *TR
NHTSA ODI #10254670
36,500 miles · Jan 11, 2009
Electrical System
TACHOMETER AND SPEEDOMETER NOT WORKING CORRECTLY. TACH WORKS FOR A SHORT TIME THEN DROPS TO ZERO. SPEEDOMETER SHOWS 30MPH =/- WHILE STOPPED. WHILE MOVING IT SHOWS 30MPH+/- OVER ACTUAL SPEED ACCORDING TO MY COMPUTER SCANNER. CONTACTED GM AND THEY SAID THERE WAS NOT RECORD OF THIS TYPE OF COMPLAINT AND IT IS NOT COVERED UNDER WARR…
Read full complaint
TACHOMETER AND SPEEDOMETER NOT WORKING CORRECTLY. TACH WORKS FOR A SHORT TIME THEN DROPS TO ZERO. SPEEDOMETER SHOWS 30MPH =/- WHILE STOPPED. WHILE MOVING IT SHOWS 30MPH+/- OVER ACTUAL SPEED ACCORDING TO MY COMPUTER SCANNER. CONTACTED GM AND THEY SAID THERE WAS NOT RECORD OF THIS TYPE OF COMPLAINT AND IT IS NOT COVERED UNDER WARRANTY. *TR
NHTSA ODI #10254507
40,000 miles · Jan 11, 2009
Electrical System
I HAVE A 2004 CHEVY TRAILBLAZER, THE RPM GAUGE STOPPED WORKING AND IT HAS SLOWLY PROGRESSED TO THE OIL GAUGE AND NOW THE SPEEDOMETER READS WAY OFF THE CHARTS. I SEE THROUGH SOME INTERNET SEARCHING THAT THIS IS A RECURRING PROBLEM WITH THESE VEHICLES. I HAVE NOT HAD THIS PROBLEM REPAIRED AS OF YET, AS I FEEL WITH THIS BEING SUCH…
Read full complaint
I HAVE A 2004 CHEVY TRAILBLAZER, THE RPM GAUGE STOPPED WORKING AND IT HAS SLOWLY PROGRESSED TO THE OIL GAUGE AND NOW THE SPEEDOMETER READS WAY OFF THE CHARTS. I SEE THROUGH SOME INTERNET SEARCHING THAT THIS IS A RECURRING PROBLEM WITH THESE VEHICLES. I HAVE NOT HAD THIS PROBLEM REPAIRED AS OF YET, AS I FEEL WITH THIS BEING SUCH A SAFETY ISSUE AND SUCH A REPEATED PROBLEM WITH THE CHEVY. TRAILBLAZER THAT CHEVROLET SHOULD ISSUE A RECALL. *TR
NHTSA ODI #10254503
51,000 miles · Jan 9, 2009
Electrical System
I OWN A 2004 CHEVY TRAILBLAZER, BOTH THE TACH AND SPEEDO OPERATE ERRATICALLY. THE SPEEDO IS OF PARTICULAR CONCERN, THE ERRATIC READING INDICATES THE WRONG VEHICLE SPEED, MANT TIMES IS READS 20 - 40MPH TO LOW WHICH CAN LEAD DRIVING HAZARD. THIS IS SIGNIFICANT SAFETY ISSUE. RESEARCH ON THE INTERNET SHOWS THIS A VERY SIGNIFICAN…
Read full complaint
I OWN A 2004 CHEVY TRAILBLAZER, BOTH THE TACH AND SPEEDO OPERATE ERRATICALLY. THE SPEEDO IS OF PARTICULAR CONCERN, THE ERRATIC READING INDICATES THE WRONG VEHICLE SPEED, MANT TIMES IS READS 20 - 40MPH TO LOW WHICH CAN LEAD DRIVING HAZARD. THIS IS SIGNIFICANT SAFETY ISSUE. RESEARCH ON THE INTERNET SHOWS THIS A VERY SIGNIFICANT PROBLEM ON THESE VEHICLES, WITH THE INCIDENT RATE A MAGNITUDE HIGHER THAN NORMAL / ACCEPTABLE FAILURE RATES. *TR
NHTSA ODI #10254400
71,589 miles · Jan 8, 2009
Exterior Lighting
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT WAS PULLED OVER BY A POLICE OFFICER. HE WAS INFORMED THAT BOTH THE DRIVER'S AND PASSENGER SIDE BRAKE LIGHTS WERE INOPERABLE. HE DROVE THE VEHICLE TO HIS RESIDENCE, CHECKED THE FUSE PANEL, AND NOTICED THAT THE FUSE WAS STILL GOOD.…
Read full complaint
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT WAS PULLED OVER BY A POLICE OFFICER. HE WAS INFORMED THAT BOTH THE DRIVER'S AND PASSENGER SIDE BRAKE LIGHTS WERE INOPERABLE. HE DROVE THE VEHICLE TO HIS RESIDENCE, CHECKED THE FUSE PANEL, AND NOTICED THAT THE FUSE WAS STILL GOOD. THE MANUFACTURER STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 04V527000 (EXTERIOR LIGHTING:BRAKE LIGHTS). THE MANUFACTURER ALSO STATED THAT THEY WERE NOT OBLIGATED TO PERFORM THE REPAIRS ON THE VEHICLE. THE DEALER INFORMED THE CONTACT TO BRING THE VEHICLE TO THEIR ESTABLISHMENT FOR INSPECTION. THE CURRENT MILEAGE WAS 71,624 AND FAILURE MILEAGE WAS 71,589.
NHTSA ODI #10254241
Mileage unknown · Jan 6, 2009
Electrical System
2004 CHEVROLET TRAILBLAZER WITH A DEFECTIVE SPEEDOMETER. CONSUMER STATES THAT THE SPEEDOMETER WAS REPLACED AND COST HIM NEARLY $600. HE FEELS THAT THE TRAILBLAZER SHOULD BE ADDED TO THE RECALL LIST. *KB *JB
NHTSA ODI #10254531
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.
Illustration