NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
183 reportsClear category filter90,400 miles · Jul 31, 2011
Electrical System
DRIVING DOWN THE ROAD I GLANCED TO CHECK MY SPEEDOMETER AND SAW IT REGISTERED ABOUT 100 MPH. I WAS ONLY GOING ABOUT 40. THE SPEEDOMETER CONTINUED TO CLIMB AND WENT BELOW THE HIGHEST REGISTERED NUMBER, WHICH IS 120, AND THAT'S WHERE IT NOW SITS APPARENTLY FOR GOOD. NOW I CANNOT TELL MY SPEED. THE NEEDLE REMAINS BURIED BELOW 120 M…
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DRIVING DOWN THE ROAD I GLANCED TO CHECK MY SPEEDOMETER AND SAW IT REGISTERED ABOUT 100 MPH. I WAS ONLY GOING ABOUT 40. THE SPEEDOMETER CONTINUED TO CLIMB AND WENT BELOW THE HIGHEST REGISTERED NUMBER, WHICH IS 120, AND THAT'S WHERE IT NOW SITS APPARENTLY FOR GOOD. NOW I CANNOT TELL MY SPEED. THE NEEDLE REMAINS BURIED BELOW 120 MPH AND DOES NOT MOVE AT ALL NO MATTER WHAT SPEED. *TR
NHTSA ODI #10416416
92,000 miles · Jul 31, 2011
Electrical System
2005 GMC ENVOY INSTRUMENT CLUSTER PANEL FAILURE... THE SPEEDOMETER AND GAS GAUGE QUIT WORKING. *TR
NHTSA ODI #10416381
97,000 miles · Jul 20, 2011
Electrical System
THE SPEEDOMETER DOES NOT ACCURATELY RECORD THE SPEED WHILE TRAVELING FOR MY 2005, GMC, ENVOY, SLT MODEL. IT WILL INDICATE THAT I AM TRAVELING 20 MPH OR EVEN 0 WHILE ON THE HIGHWAY AND SEEMS TO INCREASE MY RPMS WHILE MALFUNCTIONING. THIS HAS CAUSED SEVERAL TICKETS AS I CAN NOT PERSONALLY TRACK HOW FAST/SLOW I AM GOING WHILE DRI…
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THE SPEEDOMETER DOES NOT ACCURATELY RECORD THE SPEED WHILE TRAVELING FOR MY 2005, GMC, ENVOY, SLT MODEL. IT WILL INDICATE THAT I AM TRAVELING 20 MPH OR EVEN 0 WHILE ON THE HIGHWAY AND SEEMS TO INCREASE MY RPMS WHILE MALFUNCTIONING. THIS HAS CAUSED SEVERAL TICKETS AS I CAN NOT PERSONALLY TRACK HOW FAST/SLOW I AM GOING WHILE DRIVING. THIS MALFUNCTION HAPPENS EVERYDAY. MY OIL GAUGE IS ALSO UNABLE TO READ, IT NEVER MOVES AND READS UNDER THE START OF THE METER (SOUTH) AT ALL TIMES, EVEN WHEN THE VEHICLE IS NOT STARTED. *KB
NHTSA ODI #10413743
83,500 miles · Jul 11, 2011
Electrical System
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED WHILE DRIVING 78 MPH THE SPEEDOMETER MALFUNCTIONED. THE CONTACT WAS UNABLE TO IDENTIFY THE SPEED OF THE VEHICLE WHICH CAUSED THE CONTACT TO BE CITED BY A POLICE OFFICER FOR SPEEDING. THE CONTACT TOOK VEHICLE TO THE DEALER WHO STATED THE ENTIRE INSTRUMENT CLUSTER NEEDED TO…
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TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED WHILE DRIVING 78 MPH THE SPEEDOMETER MALFUNCTIONED. THE CONTACT WAS UNABLE TO IDENTIFY THE SPEED OF THE VEHICLE WHICH CAUSED THE CONTACT TO BE CITED BY A POLICE OFFICER FOR SPEEDING. THE CONTACT TOOK VEHICLE TO THE DEALER WHO STATED THE ENTIRE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE INSTRUMENT CLUSTER WAS NOT REPLACED; HOWEVER, HE NOTICED NUMEROUS COMPLAINT REGARDING THE SPEEDOMETER FOR HIS YEAR, MAKE, AND MODEL AND OTHER GM VEHICLES. THE FAILURE MILEAGE WAS 83,500.
NHTSA ODI #10411800
80,000 miles · Jul 1, 2011
Electrical System
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT ALL OF THE GAUGES ON THE INSTRUMENT PANEL BEGAN TO DISPLAY IMPROPER READINGS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE ELECTRICAL SYSTEM WAS RESET. AFTER A FEW WEEKS, THE FAILURE RECURRED. THE VEHICLE WAS TA…
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TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT ALL OF THE GAUGES ON THE INSTRUMENT PANEL BEGAN TO DISPLAY IMPROPER READINGS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE ELECTRICAL SYSTEM WAS RESET. AFTER A FEW WEEKS, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE, BUT OFFERED NO ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000.
NHTSA ODI #10410172
45,000 miles · Jun 19, 2011
Electrical System
ONE DAY MY OIL GAUGE STOPPED WORKING. A FEW MONTHS LATER THE SPEEDOMETER STOPPED WORKING AND EVENTUALLY EVERY GAUGE IN MY PANEL STOPPED WORKING. THIS ALL STARTED AROUND NOV OF 2008. I COULD NOT FIGURE OUT WHAT WAS GOING ON. I CHECKED ALL FUSES, BULBS AND WIRING. NOW TWO DAYS AGO MY HEAD LIGHTS STOPPED WORKING ON LOW BEAM. NOTHIN…
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ONE DAY MY OIL GAUGE STOPPED WORKING. A FEW MONTHS LATER THE SPEEDOMETER STOPPED WORKING AND EVENTUALLY EVERY GAUGE IN MY PANEL STOPPED WORKING. THIS ALL STARTED AROUND NOV OF 2008. I COULD NOT FIGURE OUT WHAT WAS GOING ON. I CHECKED ALL FUSES, BULBS AND WIRING. NOW TWO DAYS AGO MY HEAD LIGHTS STOPPED WORKING ON LOW BEAM. NOTHING WAS FOUND TO BE THE PROBLEM. I RECENTLY FOUND HUNDREDS OF ENVOY OWNERS WITH THE EXACT SAME ISSUES AND NOW KNOW IT IS THE INSTRUMENT CLUSTER PANEL. EST COST FOR THE PART ONLY $570. *TR
NHTSA ODI #10407445
66,000 miles · May 9, 2011
Electrical SystemFuel System, Gasoline
TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED AFTER REFUELING THE FUEL TANK TO THE FULL CAPACITY LEVEL, THE FUEL GAUGE WOULD REGISTER AN EMPTY FUEL TANK. THE INACCURATE READING WAS CONSISTENT. THE INDEPENDENT MECHANIC WAS NOTIFIED OF THE FAULTY FUEL TANK AND THEY ADVISED THAT THE VEHICLE BE TAKEN IN FOR DIAGNOSIS. T…
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TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED AFTER REFUELING THE FUEL TANK TO THE FULL CAPACITY LEVEL, THE FUEL GAUGE WOULD REGISTER AN EMPTY FUEL TANK. THE INACCURATE READING WAS CONSISTENT. THE INDEPENDENT MECHANIC WAS NOTIFIED OF THE FAULTY FUEL TANK AND THEY ADVISED THAT THE VEHICLE BE TAKEN IN FOR DIAGNOSIS. THE MANUFACTURER WAS MADE AWARE OF THE PROBLEM. THE FAILURE MILEAGE WAS APPROXIMATELY 66,000. UPDATED 06/17/11 *BF UPDATED 06/30/11
NHTSA ODI #10399533
70,000 miles · May 6, 2011
Electrical SystemFuel System, Gasoline
FUEL GAUGE DOES NOT WORK CORRECTLY. THE READING ON THE FUEL GAUGE DOES NOT REFLECT THE AMOUNT OF GAS IN THE TANK. GAUGE MOSTLY READS EMPTY EVEN AFTER FILLING UP. SOMETIMES IT WILL SHOW THERE IS MORE GAS THAN IS ACTUALLY IN THE TANK.
NHTSA ODI #10400179
83,000 miles · Apr 29, 2011
Electrical SystemFuel System, Gasoline
IMMEDIATELY AFTER FILLING GAS TANK BEFORE HEADING OUT OF TOWN ON 4/22/11, FUEL GAUGE REGISTERED EMPTY. GAUGE HAS BEEN ACTING ERRATICALLY FOR THE PAST WEEK NOW. NEWS REPORT OF NHTSA INVESTIGATION MADE ME AWARE THAT I COULD REPORT THIS SOMEWHERE. OIL PRESSURE GAUGE HAS ALSO BEEN ACTING SIMILARLY ERRATIC, STARTING A FEW DAYS BEFO…
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IMMEDIATELY AFTER FILLING GAS TANK BEFORE HEADING OUT OF TOWN ON 4/22/11, FUEL GAUGE REGISTERED EMPTY. GAUGE HAS BEEN ACTING ERRATICALLY FOR THE PAST WEEK NOW. NEWS REPORT OF NHTSA INVESTIGATION MADE ME AWARE THAT I COULD REPORT THIS SOMEWHERE. OIL PRESSURE GAUGE HAS ALSO BEEN ACTING SIMILARLY ERRATIC, STARTING A FEW DAYS BEFORE FUEL GAUGE BEGAN MALFUNCTIONING.
NHTSA ODI #10398981
Mileage unknown · Apr 29, 2011
Electrical SystemExterior Lighting
SPEEDOMETER JUMPS FROM 120 TO WHEREVER. CAN NEVER TELL HOW FAST OR SLOW I'M GOING. NEVER DISPLAYS CORRECT SPEED. OIL PRESSURE GAGE GOES UP AND DOWN. ALSO, HEADLIGHTS KEEP GOING OUT. HAD TO TAKE TO MECHANIC TO REDO WIRING FOR BOTH HEADLIGHTS. *TR
NHTSA ODI #10398317
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.
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