NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
183 reportsClear category filter143,000 miles · Feb 26, 2014
Electrical SystemExterior LightingFuel/propulsion System
THE FIRST DAY WE HAD THE TRUCK THE SPEEDOMETER DISPLAYED THE WRONG SPEED AND HAS BEEN THAT WAY. IT WORKS OCCASIONALLY. THEN A WEEK LATER THE LOW BEAM HEAD LIGHTS WENT OUT WHILE DRIVING. THEY CAME BACK ON AFTER A FEW MINS. THIS HAPPENED AGAIN A FEW DAYS AGO. THE FUEL GAGE IS IN ACCURATE AS WELL. I TOOK IT TO A SHOP AND THEY SAID …
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THE FIRST DAY WE HAD THE TRUCK THE SPEEDOMETER DISPLAYED THE WRONG SPEED AND HAS BEEN THAT WAY. IT WORKS OCCASIONALLY. THEN A WEEK LATER THE LOW BEAM HEAD LIGHTS WENT OUT WHILE DRIVING. THEY CAME BACK ON AFTER A FEW MINS. THIS HAPPENED AGAIN A FEW DAYS AGO. THE FUEL GAGE IS IN ACCURATE AS WELL. I TOOK IT TO A SHOP AND THEY SAID THE INSTRUMENT CLUSTER NEEDS TO BE REPLACED BUT FOUND NO ISSUES WITH THE HEAD LIGHTS BUT THERE IS DEFINITELY AN ISSUE WITH THE HEADLIGHTS AND THAT IS VERY DANGEROUS. *TR
NHTSA ODI #10565935
110,000 miles · Feb 4, 2014
Electrical System
TL* THE CONTACT OWNS 2005 GMC ENVOY. THE CONTACT STATED WHILE DRIVING, THE SPEEDOMETER FAILED TO DISPLAY THE ACTUAL SPEED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE IT WAS DIAGNOSED THAT THE ENTIRE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE AP…
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TL* THE CONTACT OWNS 2005 GMC ENVOY. THE CONTACT STATED WHILE DRIVING, THE SPEEDOMETER FAILED TO DISPLAY THE ACTUAL SPEED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE IT WAS DIAGNOSED THAT THE ENTIRE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 110,000. THE CURRENT MILEAGE WAS 118,000.
NHTSA ODI #10562892
100,914 miles · Jan 13, 2014
Electrical SystemFuel System, Gasoline
AT LEES THAN 1/4 TANK OF FUEL THE GAS GAUGE IS CLOSE, AFTER REFUELING, THE FUEL GAUGE GOES WAY PAST FULL AND WILL STAY LIKE THAT UNTIL FUEL IS BELOW 1/4 TANK. LAST TIME THE TRUCK TOOK 19.85 GALLONS IN A 20 GALLON TANK UNTIL IT STARTED WORKING CORRECTLY AGAIN. ONE TANK IT WORKED FINE AND NEXT FILL UP IT WAS WAY BEYOND FULL AGAIN.…
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AT LEES THAN 1/4 TANK OF FUEL THE GAS GAUGE IS CLOSE, AFTER REFUELING, THE FUEL GAUGE GOES WAY PAST FULL AND WILL STAY LIKE THAT UNTIL FUEL IS BELOW 1/4 TANK. LAST TIME THE TRUCK TOOK 19.85 GALLONS IN A 20 GALLON TANK UNTIL IT STARTED WORKING CORRECTLY AGAIN. ONE TANK IT WORKED FINE AND NEXT FILL UP IT WAS WAY BEYOND FULL AGAIN. AT THE SAME TIME WHEN FUEL GAUGE IS WRONG, THE SPEEDOMETER WILL BE OFF. MANY TIMES FREEZING AT 35MPH WHILE TRAVELING 65MPH. AFTER MANY RESETS OF IGNITION, THE SPEEDOMETER WILL COME BACK. ALSO WHEN ALL OF THIS IS HAPPENING WITH THE SPEEDOMETER AND FUEL GAUGE, THE RADIO HAS NO AUDIO. EVERY NOW AND AGAIN, THE RADIO WILL COME BACK AND WORK ON ONE SPEAKER. MOST OF THE TIME IT IS OUT. WHEN WEATHER IS WARMER, ALL 3 FUNCTIONS SEEM TO WORK REGULARLY. BELOW 50 DEGREES, ALL MALFUNCTION. *TR
NHTSA ODI #10559725
84,000 miles · Dec 31, 2013
Electrical SystemFuel System, Gasoline
THE FUEL SENSOR ON THIS VEHICLE FAILS PREMATURELY. *TR
NHTSA ODI #10557947
Mileage unknown · Aug 6, 2013
Electrical System
INITIALLY THE AMP GAUGE PEGGED OUT FOLLOWED WITHIN A MONTH BY THE SPEEDOMETER GIVING UP OR SOMETIMES READING 120 MPH WHILE SITTING AT A RED LIGHT. I WAS TOLD THAT THIS WAS A COMMON PROBLEM AND COULD BE REPAIRED AT A COST OF ABOUT $600. NOT BEING ABLE TO AFFORD THAT AT THE TIME, I INSTALLED A GPS UNIT SO I WOULD HAVE SOME TYPE …
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INITIALLY THE AMP GAUGE PEGGED OUT FOLLOWED WITHIN A MONTH BY THE SPEEDOMETER GIVING UP OR SOMETIMES READING 120 MPH WHILE SITTING AT A RED LIGHT. I WAS TOLD THAT THIS WAS A COMMON PROBLEM AND COULD BE REPAIRED AT A COST OF ABOUT $600. NOT BEING ABLE TO AFFORD THAT AT THE TIME, I INSTALLED A GPS UNIT SO I WOULD HAVE SOME TYPE OF SPEEDOMETER. WITHIN 2 MOS. TIME THE CAR STALLED UPON TAKEOFF FROM A LIGHT WITH RINGING BELLS,THE DASH WARNING LIGHTS DIMLY LIT AND THE TACHOMETER BOUNCING FROM 500 TO 2500 RPMS WHILE THE ENGINE WAS STOPPED. THE CAR WOULD NOT RE-START UNTIL THE KEY WAS TURNED OFF ONCE OR TWICE AND THE WARNING LIGHTS LIT BRIGHTLY. THIS PROBLEM HAS BEEN RECURRING MORE AND MORE FREQUENTLY SOMETIMES AT HIGHWAY SPEEDS OVER 65MPH. I'M TOLD GM IS WELL AWARE OF THE PROBLEM BUT REFUSES TO ISSUE A RECALL BECAUSE IT IS NOT MANDATED AS A "SAFETY PROBLEM". I DRIVE THE INTERSTATES FOR A LIVING AND HAVE NEARLY BEEN REAR ENDED NUMEROUS TIMES ALREADY. HOW CAN THIS NOT BE A SAFETY ISSUE AND HOW CAN A COMPANY WHICH TOOK MILLIONS OF TAXPAYER BAILOUT MONEY NOT BE FORCED TO DEAL WITH THIS ISSUE. *TR
NHTSA ODI #10533959
118,600 miles · Jun 29, 2013
Electrical System
THE SPEEDOMETER STOPS WORKING AFTER ABOUT TWO HOURS OF DRIVING. IT GOES TO ZERO. IT SOMETIMES STARTS AGAIN IF THE VEHICLE IS STOPPED AND STARTED AGAIN, BUT IT WILL QUIT WORKING IF A LONG DRIVE CONTINUES. IT WORKS PERFECTLY WHEN DRIVING AROUND TOWN ON SHORT TRIPS. THE SERVICE BULLETIN APPARENTLY SAYS TO "CLEAN GROUND CONNECTI…
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THE SPEEDOMETER STOPS WORKING AFTER ABOUT TWO HOURS OF DRIVING. IT GOES TO ZERO. IT SOMETIMES STARTS AGAIN IF THE VEHICLE IS STOPPED AND STARTED AGAIN, BUT IT WILL QUIT WORKING IF A LONG DRIVE CONTINUES. IT WORKS PERFECTLY WHEN DRIVING AROUND TOWN ON SHORT TRIPS. THE SERVICE BULLETIN APPARENTLY SAYS TO "CLEAN GROUND CONNECTION". HOWEVER, THIS DID NOT FIX THE PROBLEM. I AM TOLD I NEED TO HAVE SPEEDOMETER REPLACED AT A COST OF OVER $600.00. *TR
NHTSA ODI #10522432
100,000 miles · Jun 17, 2013
Electrical System
A RECALL HAS JUST BEEN ISSUED FOR GMC ENVOY. DRIVER SIDE DOOR PANEL SHORTS OUT AND MAY CAUSE A FIRE. RECALL FOR 2006 AND 2007 MODEL YEARS. MY CAR IS A 2005 AND THE DRIVER DOOR CONTROLS HAVE BEEN SHORTING OUT FOR ABOUT A YEAR. I HAVE NOT YET HAD A FIRE BUT WHY WAS MY MODEL YEAR NOT RECALLED AND WHAT STEPS CAN I TAKE TO HAVE THIS …
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A RECALL HAS JUST BEEN ISSUED FOR GMC ENVOY. DRIVER SIDE DOOR PANEL SHORTS OUT AND MAY CAUSE A FIRE. RECALL FOR 2006 AND 2007 MODEL YEARS. MY CAR IS A 2005 AND THE DRIVER DOOR CONTROLS HAVE BEEN SHORTING OUT FOR ABOUT A YEAR. I HAVE NOT YET HAD A FIRE BUT WHY WAS MY MODEL YEAR NOT RECALLED AND WHAT STEPS CAN I TAKE TO HAVE THIS MODEL YEAR INCLUDED IN THIS RECALL? *TR
NHTSA ODI #10520240
Mileage unknown · Mar 12, 2013
Electrical SystemFuel/propulsion System
2005 GMC ENVOY BOUGHT IN FEBRUARY OF 2011. A FEW MONTHS LATER THE FUEL GAUGE ONLY REGISTERS AS EMPTY REGARDLESS OF HOW MUCH FUEL WAS ADDED TO THE TANK. *TR
NHTSA ODI #10502534
79,032 miles · Mar 6, 2013
Electrical SystemFuel/propulsion System
FUEL GAUGE STOPPED WORKING IN APRIL 2011. SHOWING EMPTY EVEN WHEN FULL. TOOK TO DEALER. MENTIONED I HEARD TRAILBLAZERS ALSO HAVING ISSUE. WAS TOLD NO RECALLS. HAD TO PAY FOR REPAIRS. FINALLY GOT NOTICE CAN GET PORTION OF MONEY BACK. IT TOOK MONTHS TO GET PORTION OF MONEY BACK. I HAD TO KEEP FOLLOWING UP EVEN THOUGH THEY CONFIRME…
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FUEL GAUGE STOPPED WORKING IN APRIL 2011. SHOWING EMPTY EVEN WHEN FULL. TOOK TO DEALER. MENTIONED I HEARD TRAILBLAZERS ALSO HAVING ISSUE. WAS TOLD NO RECALLS. HAD TO PAY FOR REPAIRS. FINALLY GOT NOTICE CAN GET PORTION OF MONEY BACK. IT TOOK MONTHS TO GET PORTION OF MONEY BACK. I HAD TO KEEP FOLLOWING UP EVEN THOUGH THEY CONFIRMED THEY HAD MY PAPERWORK. STRIKE 1. HAD CAR IN FOR 100,000 MILE SERVICE, 9/24 - 9/25/2012, ONLY TO GO BACK LATER BECAUSE OF CAR SEEMING TO NOW HAVE ISSUES ACCELERATING AND CAR WAS NOT RESET AFTER OIL CHANGE. TOLD NEEDED ENGINE MOUNTS. DISPUTED THIS AS SEEMS STRANGE CAR WAS RUNNING AND SOUNDING FINE BEFORE 100K MILE SERVICE. WENT BACK AND FORTH WITH DEALER.TOOK CAR BACK TO HAVE MASTER TECH CHECK AND ALSO BECAUSE OIL GAUGE STUCK IN ONE SPOT. WENT IN 12/31/2012. WAS QUOTED REPAIR PRICE FOR OIL SENSOR AND NOW REPAIR QUOTE NOT ONLY HAS ENGINE MOUNT REPLACEMENT BUT ALSO QUOTED TRANS MOUNT REPLACEMENT. REALLY....REFUSED REPAIR. STRIKE 2 AND 3. BTW, ALSO NEEDED NEW TIRES. I WENT TO OTHER DEALER APPROXIMATELY 35 MINUTES AWAY INSTEAD TO GET TIRES. ON 3/5/2013, ON WAY HOME NOTICE SPEEDOMETER SHOWING ABOUT 90 MILES EVEN THOUGH GPS SAYS I'M ONLY DOING ABOUT 67. EXITED INTERSTATE, SHUT CAR OFF AND TURNED BACK ON. NO CHANGE. GOT HOME, TURNED CAR OFF. SPEEDOMETER STUCK AT 20 MILES. MORNING OF 3/6/13, STARTED CAR, SPEEDOMETER STUCK AT 7 MILES. WORKED FULL DAY. GOT HOME AND IT WAS BACK TO ZERO AFTER TURNING CAR OFF. CURRENT ODOMETER IS APPROXIMATELY 106,102. THESE PEOPLE NEED TO OWN UP TO THEIR MISTAKES AND ERRORS. WE SPEND ENOUGH MONEY WITH THEM. GRASS MAY NOT BE GREENER WITH OTHER MAKE VEHICLE BUT CUSTOMER SERVICE GOES A LONG WAY!!!!! WILL TAKE A LOT TO GET ME TO BUY ANOTHER GMC OR SIMILAR VEHICLE. *TR
NHTSA ODI #10501894
100,000 miles · Feb 18, 2013
Electrical System
I PURCHASED MY ENVOY APPROX. 1 YEAR AGO. I HAVE 105,000 MILES ON IT CURRENTLY. MY SPEEDOMETER WOULD GET STUCK AT 50 MPH BUT WOULD SEEM TO ALWAYS END UP FIXING ITSELF. NOW IT IS PEGGED AT 120 AND HAS BEEN THAT WAY FOR 2 MONTHS. # 5 ON MY AC/HEAT BLOWER IS NOT WORKING. MY ENGINE LIGHT IS ON. MY WINDSHIELD WIPERS TURN ON EVERY T…
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I PURCHASED MY ENVOY APPROX. 1 YEAR AGO. I HAVE 105,000 MILES ON IT CURRENTLY. MY SPEEDOMETER WOULD GET STUCK AT 50 MPH BUT WOULD SEEM TO ALWAYS END UP FIXING ITSELF. NOW IT IS PEGGED AT 120 AND HAS BEEN THAT WAY FOR 2 MONTHS. # 5 ON MY AC/HEAT BLOWER IS NOT WORKING. MY ENGINE LIGHT IS ON. MY WINDSHIELD WIPERS TURN ON EVERY TIME I START MY CAR. I CAN NOT TURN THEM OFF , USUALLY AFTER ABOUT 30 WIPES IT WILL TURN OFF. THIS IS VERY FRUSTRATING TO ME. AS I AM RESEARCHING THESE PROBLEMS ON THE INTERNET, HOPING TO FIND SOME SORT OF RECALL, I FIND MANY OTHER ENVOY OWNERS WITH THE SAME PROBLEMS!!!! I REALLY FEEL THAT GMC SHOULD BE RESPONSIBLE FOR THIS AS MANY PEOPLE ARE IN THIS SITUATION. I HAVE TO SAY WITH THIS MANY PROBLEMS, IT'S THE VEHICLE NOT THE PEOPLE AND I THINK GMC NEEDS TO BACK THEIR PRODUCT AND TAKE CARE OF THESE ISSUES. *TR
NHTSA ODI #10498455
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.