NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
627 reportsClear category filterMileage unknown · Nov 17, 2015
Electrical SystemExterior LightingInterior LightingCrash
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING AT 25 MPH, THE VEHICLE LOST INTERIOR AND EXTERIOR LIGHTING. THE CONTACT STATED THAT THE LOW BEAM HEADLIGHTS FAILED WHICH CAUSED THE CONTACT TO CRASH INTO A CREEK. A POLICE REPORT WAS FILED. THE CONTACT WAS NOT INJURED IN THE CRASH. THE VEHIC…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING AT 25 MPH, THE VEHICLE LOST INTERIOR AND EXTERIOR LIGHTING. THE CONTACT STATED THAT THE LOW BEAM HEADLIGHTS FAILED WHICH CAUSED THE CONTACT TO CRASH INTO A CREEK. A POLICE REPORT WAS FILED. THE CONTACT WAS NOT INJURED IN THE CRASH. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE.
NHTSA ODI #10794435
150,000 miles · Sep 9, 2015
Electrical System
IGNITION KEY WOULD NOT TURN OFF AND WAS LOCKED TO "ON" POSITION. I HAD TO TAKE IT TO A LOCAL SERVICE STATION WHERE THEY INSTALLED A REPLACED THE KEY CYLINDER FOR THE COST OF $345. I BELIEVE THIS MAY BE RELATED TO THE EARLIER RECALL OF OTHER GM MODELS RECALLED DUE TO IGNITION ISSUES. I DID NOT CONTACT THE DEALER AS I NEEDED TO …
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IGNITION KEY WOULD NOT TURN OFF AND WAS LOCKED TO "ON" POSITION. I HAD TO TAKE IT TO A LOCAL SERVICE STATION WHERE THEY INSTALLED A REPLACED THE KEY CYLINDER FOR THE COST OF $345. I BELIEVE THIS MAY BE RELATED TO THE EARLIER RECALL OF OTHER GM MODELS RECALLED DUE TO IGNITION ISSUES. I DID NOT CONTACT THE DEALER AS I NEEDED TO GET IT REPAIRED IN A TIMELY MANNER.
NHTSA ODI #10762384
123,000 miles · May 4, 2015
Electrical System
IT WAS RAINING WENT TO TURN ON THE BACK WIPER BLADE AND ALL I HEARD WAS A POP AND THE FUSE BLEW, A FEW MILES DOWN THE ROAD ENGINE STILL RAN, BUT CHECK ENGINE LIGHT, AIRBAG LIGHT, BATTERY LIGHT, MOST OF THE INSTRUMENT PANEL WAS OUT, THE RADIO TURNED OFF, WINDOWS WOULD NOT OPEN AND DOORS AUTOMATICALLY UNLOCKED, GOT TO A SAFE SPOT…
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IT WAS RAINING WENT TO TURN ON THE BACK WIPER BLADE AND ALL I HEARD WAS A POP AND THE FUSE BLEW, A FEW MILES DOWN THE ROAD ENGINE STILL RAN, BUT CHECK ENGINE LIGHT, AIRBAG LIGHT, BATTERY LIGHT, MOST OF THE INSTRUMENT PANEL WAS OUT, THE RADIO TURNED OFF, WINDOWS WOULD NOT OPEN AND DOORS AUTOMATICALLY UNLOCKED, GOT TO A SAFE SPOT TO STOP TURNED THE BLAZER OFF LET IT SET TURNED IT BACK ON, CHECK ENGINE LIGHT STILL ON ALL THE OTHERS WENT OUT AND THE WINDOWS OPENED WHEN I HIT THE BUTTON. WHEN ONE FUSE COST 8.00 AND BLEW AS SOON AS I PUT IT IN, I CAN'T AFFORD TO FIX ALL THIS, AND I AM AFRAID TO DRIVE IT ON THE EXPRESSWAY WHICH IS HOW I GET TO WORK, JUST IN CASE OF FIRE OR ADDITIONAL PROBLEMS. *TR
NHTSA ODI #10714335
71,000 miles · Apr 10, 2015
Electrical SystemVehicle Speed Control
SPEEDOMETER AND TACHOMETER. BOTH HAVE NOT WORKED PROPERLY FOR A FEW MONTHS NOW... UN SAFE WILL BE GETTING IT FIX UNFORTUNATELY ITS GOING TO COST ALOT OF MONEY BUT WILL SAVE LIVES...I HAVE HEARD MANY COMPLAINTS ABOUT THIS SAME ISSUE DID SOME RESEARCH AND THERE WERE QUIET ALOT OF PPL W SAME PROBLEMS.. SOMETHING NEEDS TO BE DONE TO…
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SPEEDOMETER AND TACHOMETER. BOTH HAVE NOT WORKED PROPERLY FOR A FEW MONTHS NOW... UN SAFE WILL BE GETTING IT FIX UNFORTUNATELY ITS GOING TO COST ALOT OF MONEY BUT WILL SAVE LIVES...I HAVE HEARD MANY COMPLAINTS ABOUT THIS SAME ISSUE DID SOME RESEARCH AND THERE WERE QUIET ALOT OF PPL W SAME PROBLEMS.. SOMETHING NEEDS TO BE DONE TO PREVENT ANY AND ALL SAFETY ISSUES. *TR
NHTSA ODI #10705026
71,000 miles · Apr 10, 2015
Electrical SystemVehicle Speed Control
I HAVE 2004 TRAILBLAZER IN JAN MY TACH AND SPEEDOMETER HAVE NOT WORKED PROPERLY ...I CANNOT AFFORD THE 500 DOLLAR PLUS FIX ON THIS VEHICLE. I HAVE READ MANY COMPLAINTS IN REGARDS TO THE SAME SITUATION. APPARENTLY NO ONE HAS TAKEN CARE OF THIS PROBLEM. IFROM MY UNDERSTANDING THERE HAVE BEEN RECALLS ON MOST OTHER VEHICLES WITH…
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I HAVE 2004 TRAILBLAZER IN JAN MY TACH AND SPEEDOMETER HAVE NOT WORKED PROPERLY ...I CANNOT AFFORD THE 500 DOLLAR PLUS FIX ON THIS VEHICLE. I HAVE READ MANY COMPLAINTS IN REGARDS TO THE SAME SITUATION. APPARENTLY NO ONE HAS TAKEN CARE OF THIS PROBLEM. IFROM MY UNDERSTANDING THERE HAVE BEEN RECALLS ON MOST OTHER VEHICLES WITH THE SAME PROBLEM, I DO NOT UNDERSTAND WHY THERE ISN'T ONE FOR THE TRAILBLAZER.PLEASE ADVISE WHAT TO DO. *TR
NHTSA ODI #10705022
Mileage unknown · Apr 2, 2015
Electrical System
INSTRUMENT CLUSTER PANEL COMPLETELY GONE CRAZY. ALL GAUGES ARE OUT OF CONTROL. I AM NOT ABLE TO TELL MY SPEED AND SOME OF THE LIGHTS COME IN THE PANEL WHILE THE TRUCK IS OFF. HAVE TO DISCONNECT THE BATTERY TO MAKE SURE THE THING WILL NOT CATCH FIRE.. THIS ISSUE REALLY NEEDS TO BE INVESTIGATED DUE TO A POSSIBLE FIRE HAZARD. *…
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INSTRUMENT CLUSTER PANEL COMPLETELY GONE CRAZY. ALL GAUGES ARE OUT OF CONTROL. I AM NOT ABLE TO TELL MY SPEED AND SOME OF THE LIGHTS COME IN THE PANEL WHILE THE TRUCK IS OFF. HAVE TO DISCONNECT THE BATTERY TO MAKE SURE THE THING WILL NOT CATCH FIRE.. THIS ISSUE REALLY NEEDS TO BE INVESTIGATED DUE TO A POSSIBLE FIRE HAZARD. *TR
NHTSA ODI #10703328
100,000 miles · Apr 1, 2015
Electrical System
THE INSTRUMENT PANEL FAILED. THE SPEEDOMETER READS BETWEEN 60 (AT A STOP) AND >120 (HIGHWAY SPEED). THE TACHOMETER ARM POINTS STRAIGHT DOWN AT ALL TIMES. I AM PLANNING ON REPLACING IT MYSELF, KNOWING A RECALL WILL TAKE TOO LONG FOR ME TO WAIT BECAUSE OF THE OBVIOUS SAFETY CONCERNS. I HAVE READ MANY FORUMS AND TALKED TO OTHERS WI…
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THE INSTRUMENT PANEL FAILED. THE SPEEDOMETER READS BETWEEN 60 (AT A STOP) AND >120 (HIGHWAY SPEED). THE TACHOMETER ARM POINTS STRAIGHT DOWN AT ALL TIMES. I AM PLANNING ON REPLACING IT MYSELF, KNOWING A RECALL WILL TAKE TOO LONG FOR ME TO WAIT BECAUSE OF THE OBVIOUS SAFETY CONCERNS. I HAVE READ MANY FORUMS AND TALKED TO OTHERS WITH GM VEHICLES AROUND THIS YEAR. I KNOW OF THE RECALL ON THE 2002 MODELS AND IT SEEMS GM DIDN'T TRY THAT HARD TO FIX FUTURE MODELS. PLEASE FIX THIS SAFETY CONCERN AND SAVE OTHER'S MONEY AND, MORE IMPORTANTLY, LIVES BECAUSE OF THIS CARELESSNESS DISPLAYED BY GM. *TR
NHTSA ODI #10703232
180,000 miles · Mar 17, 2015
Electrical SystemVisibilityFireInjury
TL* THE CONTACT OWNED A 2004 CHEVROLET TRAILBLAZER. WHILE AT AN AUTOMATED CAR WASH, THE DRIVER SIDE WINDOW SWITCH SHORT CIRCUITED WITHOUT WARNING. AS A RESULT, FLAMES APPEARED AND ENGULFED THE VEHICLE. THE VEHICLE WAS DESTROYED. A FIRE REPORT AND A POLICE REPORT WERE FILED. BOTH THE CONTACT AND THE PASSENGER SUFFERED SMOKE INHAL…
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TL* THE CONTACT OWNED A 2004 CHEVROLET TRAILBLAZER. WHILE AT AN AUTOMATED CAR WASH, THE DRIVER SIDE WINDOW SWITCH SHORT CIRCUITED WITHOUT WARNING. AS A RESULT, FLAMES APPEARED AND ENGULFED THE VEHICLE. THE VEHICLE WAS DESTROYED. A FIRE REPORT AND A POLICE REPORT WERE FILED. BOTH THE CONTACT AND THE PASSENGER SUFFERED SMOKE INHALATION THAT REQUIRED MEDICAL ATTENTION. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE CONTACT WAS MADE AWARE OF NHTSA CAMPAIGN NUMBER: 13V248000 (ELECTRICAL SYSTEM, VISIBILITY); HOWEVER, THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 180,000.
NHTSA ODI #10694902
124,000 miles · Mar 1, 2015
Electrical System
SPEEDOMETER AND OTHER DASHBOARD GAUGES ARE GETTING STUCK AND NO LONGER OPERATING. I AM TOLD THAT THE ELECTRICAL COMPONENT - INSTRUMENT CLUSTER IS THE CAUSE, I HAVE ALSO BEEN TOLD THAT THIS IS VERY FREQUENT OCCURRENCE WITH THESE GM/CHEVROLET MODELS. *TR
NHTSA ODI #10691336
163,000 miles · Feb 17, 2015
Electrical SystemExterior Lighting
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE AT A STOP, THE CONTACT NOTICED THAT THE TAIL LIGHTS FAILED TO ILLUMINATE. IN ADDITION, WHEN THE KEY WAS TURNED TO THE OFF POSITION, THE VEHICLE REMAINED ON. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT BOTH TAIL LIGHT STRIPS NEEDED TO BE REPLACED. THE V…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. WHILE AT A STOP, THE CONTACT NOTICED THAT THE TAIL LIGHTS FAILED TO ILLUMINATE. IN ADDITION, WHEN THE KEY WAS TURNED TO THE OFF POSITION, THE VEHICLE REMAINED ON. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT BOTH TAIL LIGHT STRIPS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 163,000. UPDATED 4/27/15*CN THE CONSUMER STATED BOTH TAIL LIGHTS FAILED, THE STOP LIGHT ON BOTH SIDES, AND THE BRAKE LIGHTS. IGNITION WIRE WAS BURNED. UPDATED 10/9/15*JS
NHTSA ODI #10683851
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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