NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
164 reportsClear category filter164,403 miles · Jun 1, 2012
Air BagsElectrical SystemService Brakes
I HAVE OWNED A GMC ALL MY ADULT LIFE. THIS ENVOY HAS BEEN NOTHING BUT PROBLEMS ....NOW THE GAUGES SEEM TO BE ALL SCREWED UP AND AFTER READING POST FROM ONLINE..I WILL NEED TO PUT MORE TIME AND MORE MONEY INTO THIS SUV. NOTHING LIKE DRIVING LATE AT NIGHT WORRIED ABOUT WHAT'S HAPPENING NOW. I GO FROM SITTING AT A RED LIGHT AND …
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I HAVE OWNED A GMC ALL MY ADULT LIFE. THIS ENVOY HAS BEEN NOTHING BUT PROBLEMS ....NOW THE GAUGES SEEM TO BE ALL SCREWED UP AND AFTER READING POST FROM ONLINE..I WILL NEED TO PUT MORE TIME AND MORE MONEY INTO THIS SUV. NOTHING LIKE DRIVING LATE AT NIGHT WORRIED ABOUT WHAT'S HAPPENING NOW. I GO FROM SITTING AT A RED LIGHT AND MY CAR LOSING PRESSURE AND TURNING OFF, TO NOW EVERY TIME I GET INTO IT AND LEAVE MY HOUSE I HEAR THE DOOR BELL AND ALL MY PANELS SYMBOLS FLASH AND SHOWS NO GAS TO NO BATTERY LIFE.. I AM NOT PLEASED AND WILL NEVER PURCHASE A GM AGAIN..SO SAD. *TR
NHTSA ODI #10460265
132,000 miles · Apr 20, 2012
Electrical System
TL* THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED THAT THE FUEL GAUGE WOULD DISPLAY AN EMPTY READING AFTER REFUELING. IN ADDITION, ALL OF THE OTHER GAUGES ON THE INSTRUMENT PANEL FAILED. THE VEHICLE WAS TAKEN TO A DEALER AND THE DEALER STATED THAT THE INSTRUMENT PANEL NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAI…
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TL* THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED THAT THE FUEL GAUGE WOULD DISPLAY AN EMPTY READING AFTER REFUELING. IN ADDITION, ALL OF THE OTHER GAUGES ON THE INSTRUMENT PANEL FAILED. THE VEHICLE WAS TAKEN TO A DEALER AND THE DEALER STATED THAT THE INSTRUMENT PANEL NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOTIFIED AND THEY OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 132,000.
NHTSA ODI #10455891
68,000 miles · Mar 12, 2012
Electrical System
THE SPEEDOMETER AND GAS GAUGE IN MY 2004 ENVOY DO NOT WORK. JUST LIKE EVERYONE ELSE HERE THE SPEEDOMETER IN MINE SOMETIMES READS OVER 100 MPH WHEN I MIGHT BE DOING 35MPH. MOST OF THE TIME IT JUST STAYS AT 0 SO I DON'T KNOW HOW FAST I'M GOING. THE GAS GAUGE JUST DOESN'T WORK AT ALL. I CAN'T AFFORD THE REPAIR AND FROM ALL THE OTHE…
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THE SPEEDOMETER AND GAS GAUGE IN MY 2004 ENVOY DO NOT WORK. JUST LIKE EVERYONE ELSE HERE THE SPEEDOMETER IN MINE SOMETIMES READS OVER 100 MPH WHEN I MIGHT BE DOING 35MPH. MOST OF THE TIME IT JUST STAYS AT 0 SO I DON'T KNOW HOW FAST I'M GOING. THE GAS GAUGE JUST DOESN'T WORK AT ALL. I CAN'T AFFORD THE REPAIR AND FROM ALL THE OTHER COMPLAINTS I'VE SEEN GM SHOULD FIX IT FOR FREE ANYWAY. HOW MANY PEOPLE HAVE TO COMPLAIN BEFORE THE NTSB WILL GET BEHIND THE CAR OWNERS? ONE PERSON HERE SAID THAT GM ACTUALLY WON A LAWSUIT AND WAS COMPENSATED FOR THE FAULTY PARTS BUT DID NOT DO THE RECALL ON THE ENVOYS! *TR
NHTSA ODI #10451119
65,000 miles · Feb 15, 2012
Electrical SystemStructure
FIRST MY SPEEDOMETER STOPPED REGISTERING A SPEED FOLLOWED BY THE GAS GAUGE GOING OUT. MY RADIO GOES IN AND OUT (MORE OUT THAN IN), MY SUNROOF STARTED OPENING AND CLOSING ON ITS OWN WHEN TURNING THE CAR ON AND OFF, AND THE ROOF LEAKS AROUND WHERE THE VISOR IS WHEN IT RAINS HARD. I HAVE SEEN MANY OTHER CONSUMERS WITH THESE SAME …
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FIRST MY SPEEDOMETER STOPPED REGISTERING A SPEED FOLLOWED BY THE GAS GAUGE GOING OUT. MY RADIO GOES IN AND OUT (MORE OUT THAN IN), MY SUNROOF STARTED OPENING AND CLOSING ON ITS OWN WHEN TURNING THE CAR ON AND OFF, AND THE ROOF LEAKS AROUND WHERE THE VISOR IS WHEN IT RAINS HARD. I HAVE SEEN MANY OTHER CONSUMERS WITH THESE SAME PROBLEMS AND WOULD REALLY LIKE TO HAVE THESE PROBLEMS ADDRESSED BY SOMEONE AT GMC. *TR
NHTSA ODI #10448075
50,000 miles · Jan 17, 2012
Electrical SystemFuel System, Gasoline
STARTING SHORTLY AFTER ENVOY WAS BOUGHT I NOTICED THAT THE FUEL GAUGE WOULD SHOW QUARTER TANK ONE, THEN AFTER SHUTTING OFF AND STARTING AGAIN IT WAS OUT OF FUEL AND THE LIGHT WAS ON. IN JULY 2011 THE OIL PRESSURE GAUGE WENT HIGH AND IT IS NOW PEGGED AND DOESN'T RESET. I ASKED DEALER ABOUT IT AND THERE WAS AN OUTRAGEOUS PRICE JUS…
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STARTING SHORTLY AFTER ENVOY WAS BOUGHT I NOTICED THAT THE FUEL GAUGE WOULD SHOW QUARTER TANK ONE, THEN AFTER SHUTTING OFF AND STARTING AGAIN IT WAS OUT OF FUEL AND THE LIGHT WAS ON. IN JULY 2011 THE OIL PRESSURE GAUGE WENT HIGH AND IT IS NOW PEGGED AND DOESN'T RESET. I ASKED DEALER ABOUT IT AND THERE WAS AN OUTRAGEOUS PRICE JUST TO DIAGNOSE. JAN 2012 AND NOW SPEEDOMETER GAUGE DOES NOT RESET, IT IS STUCK AT 30 MPH AND GOES UP TO 85-90 WHEN DRIVING. AFTER RESEARCHING TODAY I SEE A SERVICE BULLETIN ABOUT THE INSTRUMENT CLUSTER, I NEVER RECEIVED THE INSTRUMENT CLUSTER LETTER FROM GM, BECAUSE ENVOY WASN'T INCLUDED, BUT IT IS THE SAME ISSUES AS OTHER VEHICLE ON THE SERVICE BULLETIN. PLEASE HOLD GM RESPONSIBLE FOR THESE DEFECTS. *TR
NHTSA ODI #10444048
107,000 miles · Nov 20, 2011
Electrical System
I WAS ON MY WAY TO WORK DOING 40 MPH WHEN I LOOKED DOWN TO CHECK MY SPEED AND THE SPEEDOMETER STATED THAT I WAS GOING 70 MPH AND IT WAS GOING HIGHER. I BEGIN TO SLOW DOWN BUT THE SPEEDOMETER WOULD NOT GO ANY LESS THAN 70 MPH, EVEN WHEN I PARKED MY CAR AT MY JOB IT WAS STILL READING 70 MPH. *TR
NHTSA ODI #10436480
65,300 miles · Jun 22, 2011
Electrical System
TL* THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED THAT THE GAUGES ON THE INSTRUMENT PANEL TO INCLUDE THE FUEL AND THE SPEEDOMETER WERE NOT RESPONDING. THE DEALER DIAGNOSED THE FAILURE AND DETERMINED THAT THE INSTRUMENT CLUSTER WOULD NEED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILU…
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TL* THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED THAT THE GAUGES ON THE INSTRUMENT PANEL TO INCLUDE THE FUEL AND THE SPEEDOMETER WERE NOT RESPONDING. THE DEALER DIAGNOSED THE FAILURE AND DETERMINED THAT THE INSTRUMENT CLUSTER WOULD NEED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 65,300 AND THE CURRENT MILEAGE WAS 65,600. UPDATED 07/12/11 *BF UPDATED 3/22/12 *CN
NHTSA ODI #10408491
124,000 miles · Jun 6, 2011
Electrical System
TL*THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED WHILE DRIVING THE SPEEDOMETER DISPLAYED AN INCREASE IN SPEED OVER 125 MPH AND WHEN HE STOPPED THE VEHICLE THE GAUGE WOULD DISPLAY 50 OR 70 MPH. HE DOES NOT KNOW THE ACTUAL SPEED THAT HE WAS TRAVELING. THE MANUFACTURER STATED THE WARRANTY HAD EXPIRED AND THEY WILL NOT REP…
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TL*THE CONTACT OWNS A 2004 GMC ENVOY. THE CONTACT STATED WHILE DRIVING THE SPEEDOMETER DISPLAYED AN INCREASE IN SPEED OVER 125 MPH AND WHEN HE STOPPED THE VEHICLE THE GAUGE WOULD DISPLAY 50 OR 70 MPH. HE DOES NOT KNOW THE ACTUAL SPEED THAT HE WAS TRAVELING. THE MANUFACTURER STATED THE WARRANTY HAD EXPIRED AND THEY WILL NOT REPAIR THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE DEALER WAS NOT CONTACTED REGARDING THE FAILURE. THE FAILURE MILEAGE WAS 124,000 AND THE CURRENT MILEAGE WAS 127,400. UPDATED 07/08/11*LJ UPDATED 07/15/11
NHTSA ODI #10405348
56,000 miles · May 24, 2011
Electrical System
SPEEDOMETER BEGIN STICKING ABOVE ZERO WHEN CAR WAS TURNED OFF. GRADUALLY, THE SPEEDO STUCK HIGHER AND HIGHER, UNTIL IT REMAINED PEGGED AND CEASED TO FUNCTION. SOON AFTER, ALL INSTRUMENTS IN THE PANEL SUCCESSIVE FAILED - INCLUDING FUEL GAUGE, TACHOMETER, OIL PRESSURE, AND BATTERY LEVEL... IT APPEARS TO BE AT THIS POINT A COMPLETE…
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SPEEDOMETER BEGIN STICKING ABOVE ZERO WHEN CAR WAS TURNED OFF. GRADUALLY, THE SPEEDO STUCK HIGHER AND HIGHER, UNTIL IT REMAINED PEGGED AND CEASED TO FUNCTION. SOON AFTER, ALL INSTRUMENTS IN THE PANEL SUCCESSIVE FAILED - INCLUDING FUEL GAUGE, TACHOMETER, OIL PRESSURE, AND BATTERY LEVEL... IT APPEARS TO BE AT THIS POINT A COMPLETE FAILURE OF THE INSTRUMENT CLUSTER. MOST WORRISOME, THE SPEEDOMETER AND THE FUEL GAUGE READ INCORRECTLY AT ALL TIMES, IF THEY READ AT ALL. *TR
NHTSA ODI #10402530
58,000 miles · May 18, 2011
Electrical System
THIS IS A SAFETY ISSUE IN TERMS OF BEING ABLE TO READ THE INSTRUMENTATION BEHIND THE STEERING WHEEL. IT IS ALSO A FIRE HAZARD. *TR
NHTSA ODI #10401390
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.
PE05006 · Turn Signal Failures
Opened Feb 4, 2005 · Closed May 6, 2005
Status: closed (inferred from source dates) · Exterior Lighting:turn Signal; Exterior Lighting:turn Signal:flasher Unit; Exterior Lighting:turn Signal:switch
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Additional source detail variants (3)
Exterior Lighting:turn Signal:flasher Unit
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Exterior Lighting:turn Signal
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Exterior Lighting:turn Signal:switch
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
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.
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