NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
183 reportsClear category filter75,000 miles · Mar 28, 2011
Electrical SystemFuel System, Gasoline
FUEL GAUGE SUDDENLY STOPPED WORKING PROPERLY AFTER FILL UP. MOVES FROM EMPTY, TO 1/2 FULL, TO 1/4 FULL TO EMPTY, BACK TO 1/4 FULL, BACK TO EMPTY. I CAN'T DETERMINE HOW MUCH GAS IN MAY TANK. THIS COULD CAUSE ME TO UNEXPECTEDLY RUN OUT OF GAS WHILE DRIVING IN TRAFFIC AND CAUSE AN ACCIDENT. THIS IS APPARENTLY A VERY COMMON PROB…
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FUEL GAUGE SUDDENLY STOPPED WORKING PROPERLY AFTER FILL UP. MOVES FROM EMPTY, TO 1/2 FULL, TO 1/4 FULL TO EMPTY, BACK TO 1/4 FULL, BACK TO EMPTY. I CAN'T DETERMINE HOW MUCH GAS IN MAY TANK. THIS COULD CAUSE ME TO UNEXPECTEDLY RUN OUT OF GAS WHILE DRIVING IN TRAFFIC AND CAUSE AN ACCIDENT. THIS IS APPARENTLY A VERY COMMON PROBLEM IN GMC ENVOY AND CHEVROLET TRAILBLAZERS. THERE IS NO WARNING IN THE OWNERS MANUAL OR SUGGESTION THAT THE GAUGE AND SENSORS BE REPLACED. I UNDERSTAND THAT THIS IS AN EXPENSIVE REPAIR - BETWEEN $600 AND $900.
NHTSA ODI #10393495
100,000 miles · Mar 14, 2011
Electrical System
2005 GMC ENVOY SPEEDOMETER MALFUNCTION. SPEEDOMETER IS READING 120 MPH AT ALL TIMES. *TR
NHTSA ODI #10390026
120,000 miles · Mar 10, 2011
Electrical System
INSTRUMENT CLUSTER INOPERATIVE. SPEEDOMETER PEGGED AND ALL OTHER INSTRUMENTS EXCEPT THE TACHOMETER MALFUNCTION. *TR
NHTSA ODI #10389679
Mileage unknown · Mar 8, 2011
Electrical System
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE FUEL LEVEL INDICATOR FAILED AND WOULD PROVIDE INACCURATE FUEL LEVELS. WHEN REFUELING, THE VEHICLE WOULD INDICATE THAT THE FUEL TANK WAS EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION OR REPAIRS. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY RE…
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TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE FUEL LEVEL INDICATOR FAILED AND WOULD PROVIDE INACCURATE FUEL LEVELS. WHEN REFUELING, THE VEHICLE WOULD INDICATE THAT THE FUEL TANK WAS EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION OR REPAIRS. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY REPAIRED FOR A FAILED INSTRUMENT CLUSTER. THE VIN WAS UNAVAILABLE. THE CURRENT MILEAGE WAS APPROXIMATELY 65,000 AND THE FAILURE MILEAGE WAS UNKNOWN.
NHTSA ODI #10386890
90,000 miles · Mar 8, 2011
Electrical System
TL* THE OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT CLUSTER FAILED AND THE CONTACT WAS UNABLE TO DETERMINE WHAT SPEED HE WAS TRAVELING, THE AMOUNT OF FUEL IN THE FUEL TANK, THE OIL LEVELS, BATTERY LEVEL AND VEHICLE TEMPERATURE, ALL OF WHICH THE GAUGES FAILED TO OPERATE. THE CONTACT TOOK THE VEHICLE TO THE DEALE…
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TL* THE OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT CLUSTER FAILED AND THE CONTACT WAS UNABLE TO DETERMINE WHAT SPEED HE WAS TRAVELING, THE AMOUNT OF FUEL IN THE FUEL TANK, THE OIL LEVELS, BATTERY LEVEL AND VEHICLE TEMPERATURE, ALL OF WHICH THE GAUGES FAILED TO OPERATE. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THE DEALER STATED THAT THE ENTIRE INSTRUMENT CLUSTER WOULD NEED TO BE REPLACED. THE CONTACT NOTICED NUMEROUS COMPLAINTS ONLINE REGARDING THE INSTRUMENT CLUSTER AND BELIEVED THE MANUFACTURER SHOULD ISSUE A RECALL. THE FAILURE MILEAGE WAS 90,000.
NHTSA ODI #10386864
80,000 miles · Feb 24, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 GMC ENVOY. WHILE DRIVING APPROXIMATELY 10 MPH, THE CONTACT NOTICED THE FUEL GAUGE INDICATED THE FUEL TANK WAS EMPTY. THE CONTACT STATED SHE HAD FUELED THE VEHICLE MOMENTS BEFORE. THE CONTACT STATED THE SPEEDOMETER STOPPED FUNCTIONING. WHILE PARKED, THE SPEEDOMETER DISPLAYED A READING OF 135 MPH. THE VE…
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TL*THE CONTACT OWNS A 2005 GMC ENVOY. WHILE DRIVING APPROXIMATELY 10 MPH, THE CONTACT NOTICED THE FUEL GAUGE INDICATED THE FUEL TANK WAS EMPTY. THE CONTACT STATED SHE HAD FUELED THE VEHICLE MOMENTS BEFORE. THE CONTACT STATED THE SPEEDOMETER STOPPED FUNCTIONING. WHILE PARKED, THE SPEEDOMETER DISPLAYED A READING OF 135 MPH. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIANS STATED THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE TECHNICIANS STATED THE FUEL GAUGE SENDING UNIT NEEDED TO BE REPLACED IN ORDER FOR THE FUEL GAUGE TO READ PROPERLY. THE FUEL GAUGE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 80,000. UPDATED 03/15/11 *BF UPDATED 05/23/11
NHTSA ODI #10384274
79,417 miles · Feb 14, 2011
Electrical SystemFuel System, Gasoline
FUEL GAUGE IS FAULTY. WILL NOT RECORD EXACT CAPACITY OF FUEL IN TANK. THIS LEAD TO THE VEHICLE RUNNING OUT OF GAS DURING OPERATION. AVOIDED A CRASH, JUST BARELY.
NHTSA ODI #10384990
Mileage unknown · Feb 10, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT PANEL STOPPED WORKING WHICH MADE IT IMPOSSIBLE TO DETERMINE THE SPEED AND HOW MUCH FUEL WAS IN THE VEHICLE. THE FAILURE ALSO CAUSED THE HEADLIGHTS TO FLICKER. THE VEHICLE WAS NOT INSPECTED BY THE DEALER OR A LOCAL MECHANIC TO DETERMINE THE CAUSE OF FAI…
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TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT PANEL STOPPED WORKING WHICH MADE IT IMPOSSIBLE TO DETERMINE THE SPEED AND HOW MUCH FUEL WAS IN THE VEHICLE. THE FAILURE ALSO CAUSED THE HEADLIGHTS TO FLICKER. THE VEHICLE WAS NOT INSPECTED BY THE DEALER OR A LOCAL MECHANIC TO DETERMINE THE CAUSE OF FAILURE. THE FAILURE MILEAGE WAS UNKNOWN. THE CURRENT MILEAGE WAS 105,189.
NHTSA ODI #10381396
Mileage unknown · Feb 10, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT PANEL STOPPED WORKING WHICH MADE IT IMPOSSIBLE TO DETERMINE THE SPEED AND HOW MUCH FUEL WAS IN THE VEHICLE. THE FAILURE ALSO CAUSED THE HEADLIGHTS TO FLICKER. THE VEHICLE WAS NOT INSPECTED BY THE DEALER OR A LOCAL MECHANIC TO DETERMINE THE CAUSE OF FAI…
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TL*THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE INSTRUMENT PANEL STOPPED WORKING WHICH MADE IT IMPOSSIBLE TO DETERMINE THE SPEED AND HOW MUCH FUEL WAS IN THE VEHICLE. THE FAILURE ALSO CAUSED THE HEADLIGHTS TO FLICKER. THE VEHICLE WAS NOT INSPECTED BY THE DEALER OR A LOCAL MECHANIC TO DETERMINE THE CAUSE OF FAILURE. THE FAILURE MILEAGE WAS UNKNOWN. THE CURRENT MILEAGE WAS 105,189.
NHTSA ODI #10381393
109,000 miles · Jan 30, 2011
Electrical SystemFire
BLOWER MOTOR RESISTOR HARNESS MELTED AND STARTED ON FIRE. SOME BURNT PLASTIC BEHIND DASH AND MELTED WIRES. HAD TO REPLACE BLOWER MOTOR RESISTOR AND HARNESS, AND WILL PROBABLY REPLACE FAN SPEED CONTROLLER. NOT SURE WHAT CAUSE IS...... *TR
NHTSA ODI #10379605
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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