NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
617 reportsClear category filter105,000 miles · Jul 16, 2014
Electrical System
MY SPEEDOMETER HAS STOPPED WORKING IN MY CAR AN I DON'T KNOW HOW FAST THE CAR IS TRAVELING, DONE A RESEARCH ONLINE AN THERE ARE THOUSAND PEOPLE WITH THE SAME PROBABLY AS MINE WITH THE EXACT SAME MAKE AND MODEL OF CAR AS I HAVE. SOMETHING NEEDS TO BE DONE CAUSE CHEVROLET WANT $500 TO REPLACE THE SPEEDOMETER AN THAT IS NOT RIGHT. …
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MY SPEEDOMETER HAS STOPPED WORKING IN MY CAR AN I DON'T KNOW HOW FAST THE CAR IS TRAVELING, DONE A RESEARCH ONLINE AN THERE ARE THOUSAND PEOPLE WITH THE SAME PROBABLY AS MINE WITH THE EXACT SAME MAKE AND MODEL OF CAR AS I HAVE. SOMETHING NEEDS TO BE DONE CAUSE CHEVROLET WANT $500 TO REPLACE THE SPEEDOMETER AN THAT IS NOT RIGHT. *TR
NHTSA ODI #10610973
86,225 miles · Jul 15, 2014
Electrical SystemFire
THE WIRING CONNECTING THE BLOWER MOTOR TO THE RESISTOR UNDER THE GLOVE BOX HAS MELTED THE CONNECTION BETWEEN THE TWO RESULTING IN SMOKE AND TOXIC FUMES FROM BURNING WIRES WHILE VEHICLE WAS IN OPERATION WITH A/C OPERATING ON HIGH. SHUTTING THE VEHICLE OFF STOPPED ANY FURTHER DAMAGE, I HAVE GOOGLED THIS ISSUE AND APPEARS AS THOUGH…
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THE WIRING CONNECTING THE BLOWER MOTOR TO THE RESISTOR UNDER THE GLOVE BOX HAS MELTED THE CONNECTION BETWEEN THE TWO RESULTING IN SMOKE AND TOXIC FUMES FROM BURNING WIRES WHILE VEHICLE WAS IN OPERATION WITH A/C OPERATING ON HIGH. SHUTTING THE VEHICLE OFF STOPPED ANY FURTHER DAMAGE, I HAVE GOOGLED THIS ISSUE AND APPEARS AS THOUGH ITS A KNOWN PROBLEM WITHOUT GM ACKNOWLEDGING THE ISSUE AND DOING ANY THING TO REMEDY THE ISSUE, ACCORDING TO COMPLAINTS FILED WITH CARCOMPLAINTS.COM. *TR
NHTSA ODI #10610809
121,000 miles · Jul 11, 2014
Electrical System
MY CAR WAS STARTING FINE BEFORE THIS. I LEFT WORK WENT OUT TO MY CAR TRIED TO START IT AND IT WOULD NOT DO ANYTHING OTHER THAN ELECTRICAL NOISES EVEN AFTER I TOOK KEY OUT. GOT A JUMP (IT WAS QUICK) THE GAUGE WAS MOVING SLIGHTLY. GOT TO WHERE I NEEDED TO BE AND TURNED THE CAR OFF AND IMMEDIATELY IT WOULD NOT START. JUMPED IT AGAI…
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MY CAR WAS STARTING FINE BEFORE THIS. I LEFT WORK WENT OUT TO MY CAR TRIED TO START IT AND IT WOULD NOT DO ANYTHING OTHER THAN ELECTRICAL NOISES EVEN AFTER I TOOK KEY OUT. GOT A JUMP (IT WAS QUICK) THE GAUGE WAS MOVING SLIGHTLY. GOT TO WHERE I NEEDED TO BE AND TURNED THE CAR OFF AND IMMEDIATELY IT WOULD NOT START. JUMPED IT AGAIN GOT HOME AND THE KEY GOT STUCK IN IGNITION AND THE LIGHTS FLASHED INSIDE AND OUT OF THE VEHICLE ALL NIGHT! *TR
NHTSA ODI #10609766
125,000 miles · Jul 2, 2014
Electrical System
THE SPEEDOMETER STOPPED WORKING ALONG WITH OTHER CONTROLS ON THE GAUGE CLUSTER. IT SEEMS THAT THERE ARE MANY PEOPLE THAT HAVE HAD THE SAME ISSUE WITH THIS IN GM VEHICLES SO I AM CURIOUS AS TO WHY THIS HAS YET TO BE RECALLED. MOST PEOPLE DO NOT HAVE $500+ LAYING AROUND TO GET THIS FIXED. *TR
NHTSA ODI #10607851
76,000 miles · Jul 1, 2014
Electrical SystemService Brakes
LEAVING PARKING LOT (& WANTING TO TURN ONTO ROAD) I APPLIED MY 2005 TRAILBLAZER EXT BRAKES. MY FOOT & PEDAL WENT TO FLOOR WITH NO BRAKE AT ALL. THANKFULLY NO CARS & GOING SLOW ENOUGH OR I WOULD HAVE HIT THEM. INSTEAD OF STOPPING AT END OF PARKING LOT, I FOUND MYSELF ENTERING ROAD & SEEING TREES ON OTHER SIDE OF ROAD COMING UP …
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LEAVING PARKING LOT (& WANTING TO TURN ONTO ROAD) I APPLIED MY 2005 TRAILBLAZER EXT BRAKES. MY FOOT & PEDAL WENT TO FLOOR WITH NO BRAKE AT ALL. THANKFULLY NO CARS & GOING SLOW ENOUGH OR I WOULD HAVE HIT THEM. INSTEAD OF STOPPING AT END OF PARKING LOT, I FOUND MYSELF ENTERING ROAD & SEEING TREES ON OTHER SIDE OF ROAD COMING UP QUICKLY. I GRABBED THE EMERGENCY BRAKE LEVER. SCARED ME TO DEATH!!! VEHICLE THEN TAKEN TO REPAIR SHOP. SHOP OWNER REPORT = HOLE RUBBED IN BRAKE LINE CLOSE TO DRIVER FIREWALL SEPARATING ENGINE FROM SEAT AREA. HE FURTHER SAID "BEEN IN BUSINESS FOR 30+ YEARS AND HAD NEVER SEEN THIS BEFORE. SEEMS LIKE A HUGE DESIGN FLAW." RUBBING ON ANOTHER LINE & PINHOLE THERE NOW - WHICH WOULD EXPLAIN WHY MY A/C WAS NOT WORKING ON DRIVER SIDE, BUT WORKING ON THE PASS SIDE. HOW MANY OTHER PEOPLE HAD AN ACCIDENT? HAVE ANOTHER (?)... IF GM HAS KNOWN ABOUT A PROBLEM FOR YRS ON SEVERAL MODELS: VERY WELL DOCUMENTED ON INTERNET BY HUNDREDS (IF NOT THOUSANDS OF OWNERS) - WHY WON'T NHTSA MAKE GM DO SOMETHING? PROBLEM = SPEED GAUGE, OIL PRESSURE GAUGE, & RADIO ALL OF A SUDDEN STOP WORKING ONE DAY. THEN SOME DAYS THEY ALL WORK, SOME DAYS ONLY 1 WORK, SOME DAYS 2 WORK??? AN EQUIPMENT MALFUNCTION OR COMPUTER GLITCH? HAPPENED ABOUT 75K MILES ON BOTH MY AUTO & MY DAD'S 2005 CHEVY PICKUP. I LIVE IN SE, HE LIVES IN NE. TWO AREAS OF US; YET EACH DEALERSHIP WANTED ABOUT $600.00 TO FIX IT. CALLED GM: NO HELP AVAILABLE!! SEARCHED INTERNET FOR REPAIR FIX, & NOTICED TONS OF UNHAPPY OWNERS W/ SAME PROBLEM: GM WOULD NOT HELP THEM PAY FOR THIS PROBLEM - EVEN THOUGH IT'S THEIR EQUIPMENT PROBLEM. CLEARLY IT IS A SAFETY ISSUE: NO ONE CAN TELL HOW FAST ACTUALLY GOING & LED TO MANY ACCIDENTS & SPEEDING TICKETS I'M SURE! TIME NHTSA STEPS IN DON'T YOU THINK? THEN HAVE THE BRAKE/AC LINE RUBBING ISSUE - CLEARLY A SAFETY ISSUE & I HOPE YOU DO SOMETHING! I STILL HAVE THE BRAKE LINE. *TR
NHTSA ODI #10607447
120,000 miles · Jun 27, 2014
Electrical System
ODOMETER NOW READS ZERO, DO NOT KNOW SPEED. GAS GAUGE READS ZERO. IF REAR DEFROST IS ON AND A/C UNIT IS ON THE FUSE FOR THE SYSTEM WILL BLOW. RADIO SYSTEM IS NOT FUNCTIONING PROPERLY. *TR
NHTSA ODI #10606420
187,000 miles · Jun 6, 2014
Electrical SystemLatches/locks/linkages
DRIVER'S SIDE PASSENGER DOOR LEFT REAR DOOR LATCH ON 2002 CHEVROLET TRAILBLAZER LS IS STUCK. THE DOOR WILL NOT SHUT! I HAVE READ ANOTHER COMPLAINT FOR THE VERY SAME REASON AND A VERY SIMILAR SITUATION TO THE EXT AND THERE IS A RECALL ON THE EXT BUT DOESN'T PERTAIN TO THE LS. I CAN'T SHUT MY DOOR BECAUSE THE LATCH WON'T CONNECT.…
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DRIVER'S SIDE PASSENGER DOOR LEFT REAR DOOR LATCH ON 2002 CHEVROLET TRAILBLAZER LS IS STUCK. THE DOOR WILL NOT SHUT! I HAVE READ ANOTHER COMPLAINT FOR THE VERY SAME REASON AND A VERY SIMILAR SITUATION TO THE EXT AND THERE IS A RECALL ON THE EXT BUT DOESN'T PERTAIN TO THE LS. I CAN'T SHUT MY DOOR BECAUSE THE LATCH WON'T CONNECT.I OPENED THE DOOR AND COULD NOT SHUT IT AFTER THAT BECAUSE IT WOULDN'T LATCH. WE HAVE LOOKED EVERYWHERE AND HAVE NOT BEEN ABLE TO LOCATE THE PART AT A REASONABLE PRICE. I WAS IN THE PROCESS OF SELLING IT, BUT BECAUSE OF THIS FAULTY DEFECT WE CANNOT SELL IT. WE HAVE NOT BEEN ABLE TO GET IT FIXED. NO ONE SEEMS TO HAVE THE PART AND WE CONTACTED DEALERSHIPS AND THEY LOOKED UP RECALLS BUT COULDN'T HELP US CAUSE OUR VIN NUMBER ISN'T COVERED. WHAT DO WE DO NOW?? *TR
NHTSA ODI #10596736
95,000 miles · Jun 5, 2014
Electrical SystemFuel/propulsion SystemVehicle Speed Control
CLUSTER GAUGES ARE GOING OUT. THE SPEEDOMETER QUICK WORKING A FEW YEARS AGO AND IS INTERMITTENT AT BEST ON A DAILY BASIS. IT EITHER INDICATES A LESSER OR GREATER SPEED THAN ACTUAL OR JUST FALLS TO POINT STRAIGHT DOWN. I HAVE BEEN USING A MOUNTED GPS TO INDICATE SPEED. INITIAL REPAIR COST ESTIMATES WERE $500+ FOR THE PARTS SI…
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CLUSTER GAUGES ARE GOING OUT. THE SPEEDOMETER QUICK WORKING A FEW YEARS AGO AND IS INTERMITTENT AT BEST ON A DAILY BASIS. IT EITHER INDICATES A LESSER OR GREATER SPEED THAN ACTUAL OR JUST FALLS TO POINT STRAIGHT DOWN. I HAVE BEEN USING A MOUNTED GPS TO INDICATE SPEED. INITIAL REPAIR COST ESTIMATES WERE $500+ FOR THE PARTS SINCE THEY WILL ONLY REPLACE THE ENTIRE GAUGE CLUSTER. WITH LABOR, THE ESTIMATE WAS IN EXCESS OF $800. FUEL GAUGE IS NOW INOPERATIVE OR INTERMITTENT. WHEN I FILL THE TANK, THE FUEL GAUGE READS WAY PAST THE FULL LINE. HAVING TO RELY OF THE FUEL TO EMPTY AND THE FUEL USED COMPUTER INFORMATION ALONG WITH THE TRIP METER TO ESTIMATE FUEL. RECEIVED ANOTHER ESTIMATE FOR A MECHANIC TO PULL THE GAUGE CLUSTER AND REBUILD EACH INDIVIDUAL GAUGE MOTOR FOR AN ESTIMATE OF $500. BASED UPON THE NUMBER SIMILAR COMPLAINTS ON THIS SAME THING, THIS APPEARS TO BE A MANUFACTURING DEFECT THAT NEEDS TO BE CORRECTED BY GM. *TR
NHTSA ODI #10596333
120,000 miles · May 28, 2014
Electrical SystemExterior Lighting
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE LOW BEAMS FAILED TO ILLUMINATE. THE CONTACT MENTIONED THAT THE HIGH BEAMS WERE ABLE TO FUNCTION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 120,000 AND THE CURRENT MILEAGE WA…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE LOW BEAMS FAILED TO ILLUMINATE. THE CONTACT MENTIONED THAT THE HIGH BEAMS WERE ABLE TO FUNCTION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 120,000 AND THE CURRENT MILEAGE WAS 122,000. UPDATED 8/11/14*CN THE CONSUMER STATED THE HEADLIGHTS WENT OUT, FOR NO REASON. UPDATED 08/26/14
NHTSA ODI #10594665
100,000 miles · May 28, 2014
Electrical SystemStructure
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT ALL THE FUNCTIONS OF THE DRIVER DOOR HAD FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE DOOR MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILE…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT ALL THE FUNCTIONS OF THE DRIVER DOOR HAD FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE DOOR MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000 AND THE CURRENT MILEAGE WAS 115,000.
NHTSA ODI #10594570
NHTSA investigations
2RQ17002 · 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.
DP10001 · Fuel Level Gauge System Failure
Opened Jan 7, 2010 · Closed May 23, 2011
Status: closed (inferred from source dates) · Fuel System, Other; Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Additional source detail variants (2)
Fuel System, Other
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.