NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
627 reportsClear category filter75,476 miles · Oct 19, 2012
Electrical System
AFTER DRIVING MY LS TRAILBLAZER TO THE STORE, I GOT BACK IN TO NOTICE THE SPEEDOMETER WAS NO LONGER RESTING AT "0". THIS WAS BEFORE I EVEN STARTED THE VEHICLE. IT WAS SITTING AT THE "55" POINT! UPON STARTING THE VEHICLE, THE GAUGE DID NOT MOVE BACK TO ZERO. SO AS I DROVE AWAY, GOING NO MORE THAN 10MPH, THE GAUGE SUGGESTED I WAS …
Read full complaint
AFTER DRIVING MY LS TRAILBLAZER TO THE STORE, I GOT BACK IN TO NOTICE THE SPEEDOMETER WAS NO LONGER RESTING AT "0". THIS WAS BEFORE I EVEN STARTED THE VEHICLE. IT WAS SITTING AT THE "55" POINT! UPON STARTING THE VEHICLE, THE GAUGE DID NOT MOVE BACK TO ZERO. SO AS I DROVE AWAY, GOING NO MORE THAN 10MPH, THE GAUGE SUGGESTED I WAS GOING 65! I WAS SCARED DRIVING HOME BECAUSE I DID NOT KNOW MY EXACT SPEED. UPON GETTING HOME AND SHUTTING OFF THE VEHICLE, I NOTICED THE GAUGE RESTED AT THE "50" POINT. SO I TURNED ON THE VEHICLE, THEN QUICKLY TURNED IT OFF. THE SPEEDOMETER WAS NOW RESTING AT "45". I CONTINUED TO QUICKLY START AND THEN SHUT OFF THE VEHICLE, EVENTUALLY WORKING THE GAUGE BACK DOWN TO ZERO. BUT THIS DOES NOT SEEM LIKE THE RIGHT THING TO DO. THERE IS OBVIOUSLY SOMETHING WRONG. IN THE PAST, I HAVE HAD SMALLER SCALE INCIDENTS WITH THE TACHOMETER GAUGE. IT WOULD ZERO ITSELF AT 1 OR 2 RPMS, THUS INDICATING MY ENGINE WAS REVVING HIGHER THAN IT ACTUALLY WAS. MOREOVER, A COUPLE TIMES MY FUEL GAUGE WAS POINTING OUTSIDE OF THE E TO F RANGE! THERE IS SOMETHING SERIOUSLY WRONG WITH THE ELECTRICAL SYSTEM. GM, YOU NEED TO RECALL THIS AND FIX IT PLEASE. *TR
NHTSA ODI #10481097
87,000 miles · Sep 17, 2012
Electrical System
WHILE TAKING MY GIRLS TO SCHOOL MY SPEEDOMETER READING WAS 50MPH FASTER THAN I WAS ACTUALLY GOING AND MY TACT WAS NOT REGISTERING AT ALL. WHEN I STOPPED THE CAR I TURNED ENGINE OFF AND RESTARTED THE CAR AND NEITHER GAUGE WORKS AT ALL AND HASN'T IN OVER A YEAR. I TOOK THE VEHICLE TO MY LOCAL DEALERSHIP AND THEY WANT 800.00 TO F…
Read full complaint
WHILE TAKING MY GIRLS TO SCHOOL MY SPEEDOMETER READING WAS 50MPH FASTER THAN I WAS ACTUALLY GOING AND MY TACT WAS NOT REGISTERING AT ALL. WHEN I STOPPED THE CAR I TURNED ENGINE OFF AND RESTARTED THE CAR AND NEITHER GAUGE WORKS AT ALL AND HASN'T IN OVER A YEAR. I TOOK THE VEHICLE TO MY LOCAL DEALERSHIP AND THEY WANT 800.00 TO FIX IT AND SAID IT WAS A MALFUNCTION IN THE CLUSTER AND I HAVE CHECKED AND IT IS A SEVERE PROBLEM WITH THIS MAKE AND MODEL. I HAVE BEEN DRIVING WITHOUT THESE GAUGES WORKING AND JUDGE MY SPEED WITH THE TRAFFIC, BUT I AM A SINGLE MOM WITH LIMITED RESOURCES AND PURCHASED A GM VEHICLE BECAUSE OF THE SAFETY REPORTS. I FEEL THAT WITH ALL OF THE OTHER SAME COMPLAINTS DOES IT TAKE A LOSS OF LIFE TO GET THIS ISSUE RESOLVED. *TR
NHTSA ODI #10475573
70,000 miles · Jul 23, 2012
Electrical System
WHILE DRIVING ON THE FREEWAY WITH MY FAMILY THE SPEEDOMETER AND TACH STOPPED WORKING. WE HAVE BEEN CALLING GM TO FIND A SOLUTION WITH NO RESULTS. I HAVE COME TO REALIZE THAT I AM ONE OF MANY WITH THIS SAME ISSUE WITH THEIR 2004 TRAILBLAZER. WE CANNOT UNDERSTAND HOW GM CAN SAY THAT THIS IS NOT A SAFETY ISSUE WHEN THIS PUTS OUR C…
Read full complaint
WHILE DRIVING ON THE FREEWAY WITH MY FAMILY THE SPEEDOMETER AND TACH STOPPED WORKING. WE HAVE BEEN CALLING GM TO FIND A SOLUTION WITH NO RESULTS. I HAVE COME TO REALIZE THAT I AM ONE OF MANY WITH THIS SAME ISSUE WITH THEIR 2004 TRAILBLAZER. WE CANNOT UNDERSTAND HOW GM CAN SAY THAT THIS IS NOT A SAFETY ISSUE WHEN THIS PUTS OUR CHILDREN AND FAMILIES IN DANGER WHEN EVER THEY ARE IN A VEHICLE THAT IS NOT PRODUCING ACCURATE FEEDBACK CONCERNING OUR SPEED AND PERFORMANCE OF THE VEHICLE. *TR
NHTSA ODI #10467078
50,000 miles · Jul 17, 2012
Electrical System
I HAVE THE SAME PROBLEM THAT AN EARLIER BLOGGER AS, ALL MY GAUGES ARE STUCK, THE SPEEDOMETER IS STUCK, THE OIL GAUGE STUCK, GAS GAUGE STUCK, I THINK GM NEEDS TO TAKE CONTROL OF THEIR PROBLEM AND CORRECT IT, NOT JUST SAY IT'S NOT A PROBLEM THEY WILL NOT FIX. THERE NEEDS TO BE A RECALL FOR THIS PROBLEM PIN THE TRAILBLAZER TRUCKS. …
Read full complaint
I HAVE THE SAME PROBLEM THAT AN EARLIER BLOGGER AS, ALL MY GAUGES ARE STUCK, THE SPEEDOMETER IS STUCK, THE OIL GAUGE STUCK, GAS GAUGE STUCK, I THINK GM NEEDS TO TAKE CONTROL OF THEIR PROBLEM AND CORRECT IT, NOT JUST SAY IT'S NOT A PROBLEM THEY WILL NOT FIX. THERE NEEDS TO BE A RECALL FOR THIS PROBLEM PIN THE TRAILBLAZER TRUCKS. *TR
NHTSA ODI #10466321
84,000 miles · Jul 2, 2012
Electrical System
LOVE THE VEHICLE EXCEPT THE FACT ALL MY GAUGES STICK.... GM HAD TOLD ME THIS HAS TO BE SAFETY ISSUE IN ORDER TO BE RECALLED... I'M PRETTY SURE NOT KNOWING HOW FAST I AM GOING ON THE HIGHWAY IS A SAFETY ISSUE... ESPECIALLY WITH LITTLE CHILDREN IN THE CAR. THIS IS UNACCEPTABLE. I REFUSE TO PAY FOR A DEFECT THAT IS HAPPENING IN…
Read full complaint
LOVE THE VEHICLE EXCEPT THE FACT ALL MY GAUGES STICK.... GM HAD TOLD ME THIS HAS TO BE SAFETY ISSUE IN ORDER TO BE RECALLED... I'M PRETTY SURE NOT KNOWING HOW FAST I AM GOING ON THE HIGHWAY IS A SAFETY ISSUE... ESPECIALLY WITH LITTLE CHILDREN IN THE CAR. THIS IS UNACCEPTABLE. I REFUSE TO PAY FOR A DEFECT THAT IS HAPPENING IN MANY GM VEHICLES... IF I CAN FIND ALL THE COMPLAINTS I'M SURE GM CAN AS WELL. HOW DO WE GET GM TO FIX THESE PROBLEMS AND TRY TO KEEP CUSTOMERS???? *JS
NHTSA ODI #10463955
79,548 miles · Jun 5, 2012
Electrical SystemElectronic Stability Control (esc)
I HAVE A 2004 CHEVY TRAILBLAZER AND THE CLUSTER IS GOING BAD . FINDING OUT THAT I'M NOT THE ONLY ONE THAT HAS THIS PROBLEM . I HAD THE SAME PROBLEM WITH MY CHEVY AVALANCHE AND IT WAS RECALLED . I THINK THAT THIS A PROBLEM WHILE DRIVING . I THINK SOMEONE SHOULD DO SOMETHING BEFORE SOMEONE GETS HURT. BECAUSE THE GAUGES GO OUT THE …
Read full complaint
I HAVE A 2004 CHEVY TRAILBLAZER AND THE CLUSTER IS GOING BAD . FINDING OUT THAT I'M NOT THE ONLY ONE THAT HAS THIS PROBLEM . I HAD THE SAME PROBLEM WITH MY CHEVY AVALANCHE AND IT WAS RECALLED . I THINK THAT THIS A PROBLEM WHILE DRIVING . I THINK SOMEONE SHOULD DO SOMETHING BEFORE SOMEONE GETS HURT. BECAUSE THE GAUGES GO OUT THE ON AND WHILE DRIVING. IT COULD HURT A YOUNG DRIVER THAT DOESN'T WHAT TO DO. GM KNOWS THE PROBLEM BUT WILL NOT DO ANYTHING ABOUT IT . IT THE SAME PROBLEM THAT THEY DID A RECALL ON WITH THE TRUCKS. SO I THINK THEY SHOULD FIX THIS PROBLEM. SO COULD YOU PLEASE HELP BEFORE SOMEONE GETS HURT BAD OVER THIS PROBLEM. THANK YOU PLEASE HELP! *TR
NHTSA ODI #10460617
70,000 miles · May 25, 2012
Electrical System
THIS ISSUE NEEDS TO BE ADDRESSED, MY SPEEDOMETER AND TRANS METER ON LEFT OF SPEEDOMETER STARTED SHOWING MY CHEVROLET SPEED WAS 80 MILES AN HOUR EVEN IN PARK. THEN WHILE I DRIVE IT WILL MOVE TO 100 MILES AN HOUR WHILE I'M DRIVING 35, AND IT MOVES UP AND DOWN DEPENDING ON MY SPEED. SOME TIMES IT WILL WORK OTHER TIMES IT WILL NOT …
Read full complaint
THIS ISSUE NEEDS TO BE ADDRESSED, MY SPEEDOMETER AND TRANS METER ON LEFT OF SPEEDOMETER STARTED SHOWING MY CHEVROLET SPEED WAS 80 MILES AN HOUR EVEN IN PARK. THEN WHILE I DRIVE IT WILL MOVE TO 100 MILES AN HOUR WHILE I'M DRIVING 35, AND IT MOVES UP AND DOWN DEPENDING ON MY SPEED. SOME TIMES IT WILL WORK OTHER TIMES IT WILL NOT SHOW THE CORRECT SPEED, OR ACCELERATION ON TRANS METER TO THE LEFT OF SPEEDOMETER. I HAVE WENT ONLINE AND SEEN 1000'S OF PEOPLE SAYING THE SAME THING AT THE SAME MILES OF THE CHEVROLET. 70,000-90,000 MOST ARE AROUND 80,000. SHOULDN'T THIS HAVE BEEN RECALLED YEARS AGO? AND WHY HAVE THIS ISSUE BEEN IGNORED FOR SO LONG? *TR
NHTSA ODI #10459640
98,000 miles · Apr 27, 2012
Electrical System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE TRAVELING AT VARIOUS SPEEDS, THE CONTACT NOTICED THAT ALL OF THE GAUGES ON THE INSTRUMENT PANEL FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE INSTRUMENT PANEL NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CURRENT MILEAGE WAS…
Read full complaint
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE TRAVELING AT VARIOUS SPEEDS, THE CONTACT NOTICED THAT ALL OF THE GAUGES ON THE INSTRUMENT PANEL FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE INSTRUMENT PANEL NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CURRENT MILEAGE WAS 101,000 AND THE FAILURE MILEAGE WAS 98,000.
NHTSA ODI #10456694
50,000 miles · Apr 6, 2012
Electrical System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE DIGITAL INSTRUMENT PANEL FAILED. THE CONTACT WAS UNABLE TO READ THE SPEED TRAVELED, MILEAGE OR FUEL LEVELS. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE INSTRUMENT PANEL WAS NOT UNDER WARRANTY. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAIL…
Read full complaint
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE DIGITAL INSTRUMENT PANEL FAILED. THE CONTACT WAS UNABLE TO READ THE SPEED TRAVELED, MILEAGE OR FUEL LEVELS. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE INSTRUMENT PANEL WAS NOT UNDER WARRANTY. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 50,000 AND THE CURRENT MILEAGE WAS 73,000.
NHTSA ODI #10454380
60,000 miles · Mar 30, 2012
Electrical SystemFuel System, Other
FUEL GAUGE HAS BEEN FLUCTUATING WILDLY FOR A COUPLE OF MONTHS, GENERALLY READING EMPTY (EVEN AFTER FILL UP) BUT OCCASIONALLY FULL (WHEN A FILL UP IS NEEDED). DEALER SAID FUEL GAUGE SENSOR WAS BAD & THAT IT WOULD BE APPROX $900 TO FIX. LOOKING INTO THE PROBLEM ONLINE I SEE THERE ARE THOUSANDS OF PEOPLE WITH THE SAME PROBLEM. …
Read full complaint
FUEL GAUGE HAS BEEN FLUCTUATING WILDLY FOR A COUPLE OF MONTHS, GENERALLY READING EMPTY (EVEN AFTER FILL UP) BUT OCCASIONALLY FULL (WHEN A FILL UP IS NEEDED). DEALER SAID FUEL GAUGE SENSOR WAS BAD & THAT IT WOULD BE APPROX $900 TO FIX. LOOKING INTO THE PROBLEM ONLINE I SEE THERE ARE THOUSANDS OF PEOPLE WITH THE SAME PROBLEM. *JS
NHTSA ODI #10453574
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