NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
627 reportsClear category filter136,000 miles · Dec 11, 2014
Electrical SystemExterior LightingFire
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE LOW BEAM HEADLIGHTS TURNED ON AND OFF WITHOUT WARNING. THE FAILURE RECURRED ON SEVERAL OCCASIONS. THE CONTACT ALSO STATED THAT THE LOW BEAM HEADLIGHTS FAILED AND THERE WAS A BURNING SMELL IN THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANI…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE LOW BEAM HEADLIGHTS TURNED ON AND OFF WITHOUT WARNING. THE FAILURE RECURRED ON SEVERAL OCCASIONS. THE CONTACT ALSO STATED THAT THE LOW BEAM HEADLIGHTS FAILED AND THERE WAS A BURNING SMELL IN THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUSE BOX AND WIRING BURNED AND NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 136,000.
NHTSA ODI #10663673
156,000 miles · Nov 7, 2014
Electrical SystemExterior Lighting
THE HEADLIGHT SOCKET (LOW BEAM) ON THE DRIVERS SIDE MELTED AND NEARLY CAUGHT FIRE. AND THE RPM GAUGE STEPPER IS MESSING UP. *TR
NHTSA ODI #10653410
Mileage unknown · Oct 5, 2014
Electrical System
SPEEDOMETER AND GAUGE PANEL NOT WORKING. NO GAUGES MOVE TO SHOW SPEED, GAS LEVEL, BATTERY LEVEL, TEMP. *TR
NHTSA ODI #10641544
49,000 miles · Sep 29, 2014
Electrical SystemFuel/propulsion System
WHILE DRIVING FUEL LEVEL GAUGE JUMPS UP AND DOWN FROM EMPTY TO FULL. IT STAYS AT WHAT EVER LEVEL IT WANTS TO. YOU CANNOT BE CERTAIN HOW MUCH FUEL IS IN GAS TANK AT ANY CERTAIN TIME! *TR
NHTSA ODI #10639876
92,004 miles · Aug 26, 2014
Electrical System
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE MAKING A TURN AT 5 MPH, THE SPEEDOMETER FAILED. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE INSTRUMENT CLUSTER GAUGE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILUR…
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TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE MAKING A TURN AT 5 MPH, THE SPEEDOMETER FAILED. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE INSTRUMENT CLUSTER GAUGE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 92,004.
NHTSA ODI #10628445
Mileage unknown · Aug 24, 2014
Electrical System
NO ACCIDENT. THIS IS A PART RECALL. I WAS WANDERING IF THERE IS A RECALL ON THE FAN CONTROL MODULE. I SEEN WHERE THE ONE I HAVE ON MY CAR IS REPLACED WITH A NEW TYPE. MY FAN NOW ONLY WORKS ON ONE SPEED. THE OTHER 4 SPEEDS WILL NOT WORK. IT IS VERY UPSETTING,IT WILL ONLY WORK ON THE 4TH SPEED. I BOUGHT ONE TO REPLACE THE OL…
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NO ACCIDENT. THIS IS A PART RECALL. I WAS WANDERING IF THERE IS A RECALL ON THE FAN CONTROL MODULE. I SEEN WHERE THE ONE I HAVE ON MY CAR IS REPLACED WITH A NEW TYPE. MY FAN NOW ONLY WORKS ON ONE SPEED. THE OTHER 4 SPEEDS WILL NOT WORK. IT IS VERY UPSETTING,IT WILL ONLY WORK ON THE 4TH SPEED. I BOUGHT ONE TO REPLACE THE OLD ONE BUT IT WILL NOT WORK ON MY CAR. WHAT IS THE NUMBER I SHOULD BE USING. IF THIS IS A GM FREE REPLACEMENT PLEASE SEND ME ONE. THANKS. MY HUSBAND IS A RETIRED GM WORKER. *TR
NHTSA ODI #10627822
22,000 miles · Aug 20, 2014
Electrical SystemExterior Lighting
THE PROBLEMS STARTED IN 2006 AND WERE VERY INTERMITTENT. THERE IS AN ELECTRICAL ISSUE WITH THE INSTRUMENT PANEL, LIGHTS, BATTERY , AND OTHER UNKNOWN ITEMS. THE DEALER CHECK THE ELECTRICAL SYSTEM WHEN IT STARTED, BUT COULD NOT FIND ANY PROBLEM. SOMETIMES, WHILE DRIVING AT NIGHT THE LIGHTS WENT OFF, AND I WOULD HAVE TO PUL…
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THE PROBLEMS STARTED IN 2006 AND WERE VERY INTERMITTENT. THERE IS AN ELECTRICAL ISSUE WITH THE INSTRUMENT PANEL, LIGHTS, BATTERY , AND OTHER UNKNOWN ITEMS. THE DEALER CHECK THE ELECTRICAL SYSTEM WHEN IT STARTED, BUT COULD NOT FIND ANY PROBLEM. SOMETIMES, WHILE DRIVING AT NIGHT THE LIGHTS WENT OFF, AND I WOULD HAVE TO PULL OFF THE ROAD, CHECK ANY FUSES AND RELAYS, AND THEN THEY WOULD COME BACK ON. THE NEXT ELECTRICAL ISSUE WAS WITH THE SPEEDOMETER, WHICH ON A TRIP ACROSS TO FLORIDA IT WOULD BE ERRATIC AND INDICATE I WAS TRAVELING OVER 120 MILES AN HOUR WHEN MY GPS SAID I WAS DRIVING AT 65. AFTER THE WARRANTY EXPIRED I HAVE HAD ISSUES WITH REPLACING MULTIPLE BATTERIES WHICH GO DEAD EVERY 4 OR 5 DAYS DEPENDING ON USAGE. AFTER THE SPEEDOMETER STOPPED WORKING, EACH OTHER INSTRUMENT PANEL ITEM WORKED ON AND OFF. THIS INCLUDES THE GAS TANK GAUGE, THE AMMETER, THE TEMPERATURE GAUGE, TACHOMETER, AND THE OIL PRESSURE GAUGE. THEY ALL WORKED ON AND OFF FOR THE NEXT 3 YEARS, AND NOW NONE OF THESE VERY IMPORTANT INSTRUMENT PANEL GAUGES HAVE WORKED FOR OVER 2 YEARS. I WONDER IF THE ELECTRONICS THAT EFFECT THE AIR BAGS WOULD WORK IF I EVER HAVE AN ACCIDENT. I HAVE REPLACED MANY BATTERIES, I STILL HAVE TO CHARGE EACH ONE EVERY 4 OR 5 DAYS OR I CANNOT START THE TRUCK. I HAVE CHECKED ONLINE AND THERE ARE THOUSANDS OF TRAILBLAZER, AND THEIR RELATED GM VEHICLES WITH THE SAME PROBLEMS. I HEAR THAT A RECALL WAS ISSUED FOR THE GMC-ENVOY WHICH IS THE SAME RELATED PARTS VEHICLE BUT THERE IS NOT ONE FOR THE TRAILBLAZER? I AM DEALING WITH THESE ISSUES AND HOPING FOR THE RECALL THAT WE ALL HAVE BEEN WAITING FOR. THANK GOD I HAVE A 97 TOYOTA CAMRY THAT RUNS WELL. I WISH [XXX] WOULD READ THIS. I ALSO HAVE PHOTOS OF THE NON-WORKING INSTRUMENT PANEL, AND THE 120MPH SPEEDOMETER. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10626662
90,000 miles · Aug 4, 2014
Electrical System
THE GAUGE CLUSTER STOPPED WORKING. I HAVE NO SPEEDOMETER, NO TEMP SENSOR, NO OIL PRESSURE, AND NO BATTERY CHARGE. *TR
NHTSA ODI #10618712
192,000 miles · Jul 30, 2014
Electrical SystemLatches/locks/linkagesVisibility
TL * THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE POWER WINDOW AND LOCK ON THE DRIVER SIDE DOOR WERE INOPERABLE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING, BUT WAS NOT REPAIRED. THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 13V248000 (ELECTRICAL SYSTEM, VISIBILITY). THE MANUFACTU…
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TL * THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE POWER WINDOW AND LOCK ON THE DRIVER SIDE DOOR WERE INOPERABLE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING, BUT WAS NOT REPAIRED. THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 13V248000 (ELECTRICAL SYSTEM, VISIBILITY). THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 192,000. UPDATED 12/09/14*LJ
NHTSA ODI #10617745
42,950 miles · Jul 17, 2014
Electrical SystemExterior LightingVehicle Speed Control
I CAN START MY VEHICLE AND THE GAUGES STARTED STICKING. I AM CONSTANTLY BEING SHOCKED BY THE DRIVER DOOR. MY GAUGES NO LONGER WORK AT ALL AND HAVE COMPLETELY WENT HAYWIRE. I HAVE NO DASH LIGHTS. MY VEHICLE HAS JUST DIED IN THE MIDDLE OF A BUSY STREET. I DO NOT KNOW HOW MUCH FUEL I HAVE, HOW FAST I AM GOING. MY CRUISE CONTROL EIT…
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I CAN START MY VEHICLE AND THE GAUGES STARTED STICKING. I AM CONSTANTLY BEING SHOCKED BY THE DRIVER DOOR. MY GAUGES NO LONGER WORK AT ALL AND HAVE COMPLETELY WENT HAYWIRE. I HAVE NO DASH LIGHTS. MY VEHICLE HAS JUST DIED IN THE MIDDLE OF A BUSY STREET. I DO NOT KNOW HOW MUCH FUEL I HAVE, HOW FAST I AM GOING. MY CRUISE CONTROL EITHER AT TIMES INCREASES MY SPEED OR DOES NOT HOLD THE SPEED. I HAVE TO USE A GPS DEVICE TO KNOW APPROXIMATE SPEED. THIS VEHICLE NEEDS TO BE RECALLED. I LOVE MY VEHICLE BUT IT HAS TONS OF ISSUES. *TR
NHTSA ODI #10611363
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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