NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
488 reports143,000 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
96,000 miles · Nov 26, 2013
Engine And Engine Cooling
MY 2005 GMC ENVOY HAS STARTED EXPERIENCING A KNOCKING SOUND IN THE RIGHT REAR PASSENGER SIDE. IT STARTS APPROXIMATELY A MINUTE AFTER THE VEHICLE STARTS AND STOPS WITHIN A MINUTE OR SO. IT HAPPENS WHEN THE CAR IS MOVING OR IDLE. THIS STARTED YESTERDAY EVENING. NOT SURE WHAT IS CAUSING IT. EVERYTHING IS RUNNING FINE IN THE VE…
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MY 2005 GMC ENVOY HAS STARTED EXPERIENCING A KNOCKING SOUND IN THE RIGHT REAR PASSENGER SIDE. IT STARTS APPROXIMATELY A MINUTE AFTER THE VEHICLE STARTS AND STOPS WITHIN A MINUTE OR SO. IT HAPPENS WHEN THE CAR IS MOVING OR IDLE. THIS STARTED YESTERDAY EVENING. NOT SURE WHAT IS CAUSING IT. EVERYTHING IS RUNNING FINE IN THE VEHICLE. THERE MUST BE OTHER SIMILAR COMPLAINTS AND RESOLUTIONS. *TR
NHTSA ODI #10553895
146,000 miles · Nov 8, 2013
Fuel System, Gasoline
SEEMS THAT THE FUEL GAUGE READS EMPTY EVEN AFTER I FILL IT UP. IT WILL CHIME, ILLUMINATE THE LOW FUEL LIGHT AND READ --- FOR RANGE LEFT TILL EMPTY. THIS HAS BEEN A KNOWN ISSUE. AFTER YOU DRIVE AND USE ABOUT 5 GALLONS IT WILL THEN GO FROM F TO E EVERY FEW MINUTES AND THEN THE CHECK ENGINE LIGHT COMES ON WITH CODE P0463. THIS HAS…
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SEEMS THAT THE FUEL GAUGE READS EMPTY EVEN AFTER I FILL IT UP. IT WILL CHIME, ILLUMINATE THE LOW FUEL LIGHT AND READ --- FOR RANGE LEFT TILL EMPTY. THIS HAS BEEN A KNOWN ISSUE. AFTER YOU DRIVE AND USE ABOUT 5 GALLONS IT WILL THEN GO FROM F TO E EVERY FEW MINUTES AND THEN THE CHECK ENGINE LIGHT COMES ON WITH CODE P0463. THIS HAS BEEN A KNOWN ISSUE. GM STATED THAT THEY DID SEND OUT AT ONE TIME A OFFER TO PAY HALF OF THE ASSOCIATED COST IF WE CHOSE TO FIX THIS AND IT WAS ONLY AVAILABLE FOR A SHORT TIME. I WAS DEPLOYED OVERSEAS AT THE TIME SO I NEVER GOT THAT MAIL AND I WOULD NOT HAVE BEEN ABLE TO DO ANYTHING AT THAT POINT IN TIME ANYWAY, HOWEVER THEY COULD HAVE ALLOWED ME TO DO IT UPON MY RETURN, NOPE!!! THEY SAID THAT THERE IS NOTHING THAT CAN BE DONE NOW, AND IT IS VIEWED ON A CASE BY CASE BASIS. THEY TOLD ME TO SEE THEIR LIAISON AT MY LOCAL DEALERSHIP, HE WILL THEN CALL THE GM REP. IT HAS NOW BEEN OVER A WEEK AND STILL NO REPLY. WHEN I CALLED GM BACK ON MY OWN, IT SEEMS THEY CLOSED MY CASE BUT DID NOT HAVE A REASON WHY IT WAS CLOSED AND I WAS PLACED FROM ONE SUPERVISOR TO ANOTHER. I HAVE REPAIRED OR REPLACED SO MANY THING ON THIS SUV IN EXCESS OF 7K ALREADY ITS NOT FUNNY.( POWER PEDAL RELAY, AND MODULE, SELF LEVELING SUSPENSION, AC CONTROL HEAD, FAN CLUTCH MOTOR, AC ACCUMULATOR, ENTIRE FUSE BLOCK, ENTIRE SHORT BLOCK OF ENGINE AND HALF THE TOP END.)NOW THE HEAT AND AC SYSTEM ARE GIVING ME ISSUES WITH THE ACTUATOR DOOR AS WELL AS THE CONTROL BOX WHERE NO AIR COMES THRU THE DASH VENTS ONLY THE FLOOR AND GMC STATED THAT IS A KNOWN PROBLEM THAT HAS AFFECTED MANY BUT THAT THERE IS NO RECALL ON THAT EITHER. OF COURSE NOW I AM OVER THE ALLOTTED MILEAGE AND WARRANTY. SOME OF US LIVE IN RURAL AREAS WHERE ITS NOT A QUICK TRIP TO A LOCAL STORE BUT A 17 MILE ROUND TRIP JUST TO GET TO A SMALL STORE. *TR
NHTSA ODI #10551564
115,000 miles · Nov 7, 2013
Fuel System, Gasoline
THE GAS TANK SENSOR WENT OUT. LATELY RECEIVED A LETTER FROM GMC FOR REPAIR BUT WITH 2 CRITERIAS. FIRST : VEHICLE MUST BE UNDER 120.000 MILES AND SECOND CRITERIA LESS THAN 10 YEARS. MY PERSONAL SITUATION ONLY APPLIES THE 10 YEARS. *TR I TALK TO GMS AND GMC IN TURN SAYS I HAVE DEAL WITH THE LOCAL DEALER AND LOCAL DEALER SAYS GMC…
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THE GAS TANK SENSOR WENT OUT. LATELY RECEIVED A LETTER FROM GMC FOR REPAIR BUT WITH 2 CRITERIAS. FIRST : VEHICLE MUST BE UNDER 120.000 MILES AND SECOND CRITERIA LESS THAN 10 YEARS. MY PERSONAL SITUATION ONLY APPLIES THE 10 YEARS. *TR I TALK TO GMS AND GMC IN TURN SAYS I HAVE DEAL WITH THE LOCAL DEALER AND LOCAL DEALER SAYS GMC MUST AUTHORIZED THE REPAIR. I FURTHER INVESTIGATE THE ISSUE THAT THERE ARE MANY SIMILAR SITUATIONS AND GMC KNOWS THAT IT'S A DEFECTIVE PART. I THINK IT IS IN DANGER IF I FORGET TO GAS UP MY CAR.
NHTSA ODI #10551449
95,000 miles · Oct 18, 2013
Fuel System, Gasoline
FUEL SENSOR NO LONGER WORKS ON VEHICLE. ALTHOUGH THIS DOESN'T APPEAR TO BE A SAFETY ISSUE PER SE, ITS A MANUFACTURING DEFECT WITH THE VEHICLE THAT GMC HAS RECOGNIZED HOWEVER THEY CONTINUE TO PUT STIPULATIONS AROUND VEHICLES THAT HAVE THIS ISSUE THAT THEY ARE WILLING TO FIX. FOR EXAMPLE, THE VEHICLE MUST BE UNDER 10YRS OF AGE OR …
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FUEL SENSOR NO LONGER WORKS ON VEHICLE. ALTHOUGH THIS DOESN'T APPEAR TO BE A SAFETY ISSUE PER SE, ITS A MANUFACTURING DEFECT WITH THE VEHICLE THAT GMC HAS RECOGNIZED HOWEVER THEY CONTINUE TO PUT STIPULATIONS AROUND VEHICLES THAT HAVE THIS ISSUE THAT THEY ARE WILLING TO FIX. FOR EXAMPLE, THE VEHICLE MUST BE UNDER 10YRS OF AGE OR UNDER 120,000 MILES WHICHEVER COMES FIRST. THIS IS RIDICULOUS. I THINK THAT GMC SHOULD BE REQUIRED TO FIX THIS KNOWN PROBLEM REGARDING OF HOW MANY MILES OR YEARS OF AGE IS ON THE VEHICLE. *TR
NHTSA ODI #10548349
89,000 miles · Sep 23, 2013
Unknown Or Other
THE BACK PASSENGER DOORS, AT TIMES, WONT SHUT, THEY KEEP POPPING OPEN. I HAD THE PARTS REPLACED BACK IN 2009, NOW IT IS 2013 AND I HAVE TO REPLACE AGAIN.
NHTSA ODI #10544905
Mileage unknown · Aug 27, 2013
EngineFuel/propulsion SystemSuspension
IN MARCH 2012 I HAD MOTOR MOUNTS INSTALLED ON MY 2005 GMC ENVOY AT THE DEALERSHIP JAY GMC BUICK COLUMBUS GEORGIA. ON AUGUST 26,2013 THEY ARE TELLING ME I NEED NEW MOTOR MOUNTS BECAUSE OF THE AGE OF VEHICLE AND MILES THEY NEED TO BE REPLACE. I GUESS PARTS ARE OLD AND PROFESSIONAL INSTALLING IS OLD TO. DURING THIS SAME TIME HAD A …
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IN MARCH 2012 I HAD MOTOR MOUNTS INSTALLED ON MY 2005 GMC ENVOY AT THE DEALERSHIP JAY GMC BUICK COLUMBUS GEORGIA. ON AUGUST 26,2013 THEY ARE TELLING ME I NEED NEW MOTOR MOUNTS BECAUSE OF THE AGE OF VEHICLE AND MILES THEY NEED TO BE REPLACE. I GUESS PARTS ARE OLD AND PROFESSIONAL INSTALLING IS OLD TO. DURING THIS SAME TIME HAD A TUNE-UP {MAJOR} AND NOW HAVE TO HAVE COIL AND PLUG INSTALL. THIS MAKE IT SEEM PAYING FOR PROFESSIONAL SERVE IS A WASTE OF TIME. MY FUEL INJECTOR ALSO NEEDS CLEANING AGAIN. IN THE FUTURE I CAN ONLY EXPECT 40,000 MILES ON ANYTHING FIXED BY DEALER. *TR
NHTSA ODI #10537518
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.