NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
617 reportsClear category filter89,442 miles · Jul 15, 2011
Electrical System
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE SPEEDOMETER, FUEL GAUGE AND THE BATTERY VOLTAGE INDICATOR ON THE INSTRUMENT PANEL WERE ALL OPERATING ERRATICALLY. THE CONTACT SPOKE WITH THE MANUFACTURER AND WAS TOLD THAT THE VEHICLE DID NOT FALL UNDER THE AGE OR MILEAGE REQUIREMENTS TO BE REPAIRED.…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE SPEEDOMETER, FUEL GAUGE AND THE BATTERY VOLTAGE INDICATOR ON THE INSTRUMENT PANEL WERE ALL OPERATING ERRATICALLY. THE CONTACT SPOKE WITH THE MANUFACTURER AND WAS TOLD THAT THE VEHICLE DID NOT FALL UNDER THE AGE OR MILEAGE REQUIREMENTS TO BE REPAIRED. THE CONTACT WAS TOLD BY THE DEALER THAT THE INSTRUMENT CLUSTER WAS FAILING. THE FAILURE MILEAGE WAS 89,442 AND THE CURRENT MILEAGE WAS 108,000. UPDATED 09/28/2011 *LN
NHTSA ODI #10412421
89,000 miles · Jun 14, 2011
Electrical System
ABOUT A YEAR AGO MY SPEEDOMETER WOULD RANDOMLY SHOW A LOSS OR GAIN OF SPEED. ABOUT 8 MONTHS AGO IT QUIT WORKING ALL TOGETHER. IT DOES NOT REGISTER IN THE NUMBERS. DURING THE SAME TIME I RAN OUT OF GAS TWICE WHEN MY GAGE HAD REGISTERED FUEL AND THE LOW FUEL LIGHT WAS NOT REGISTERED. IT HAS SINCE QUIT WORKING ALL TOGETHER. I …
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ABOUT A YEAR AGO MY SPEEDOMETER WOULD RANDOMLY SHOW A LOSS OR GAIN OF SPEED. ABOUT 8 MONTHS AGO IT QUIT WORKING ALL TOGETHER. IT DOES NOT REGISTER IN THE NUMBERS. DURING THE SAME TIME I RAN OUT OF GAS TWICE WHEN MY GAGE HAD REGISTERED FUEL AND THE LOW FUEL LIGHT WAS NOT REGISTERED. IT HAS SINCE QUIT WORKING ALL TOGETHER. I RECENTLY CALLED TO ASK HOW MUCH AN INSTRUMENT CLUSTER WOULD BE TO REPLACE AND WAS GIVEN A TOTAL OF ABOUT $600.00 THIS IS A VERY DISHEARTENING SITUATION. I HAVE READ ALL OTHER COMPLAINTS ON LINE AND THEY SAY THE SAME THING. I BELIEVE THAT THIS IS A VERY SERIOUS ISSUE AND AM EXTREMELY DISAPPOINTED THAT IT HASN'T BEEN RESOLVED BY THE COMPANY. *TR
NHTSA ODI #10406869
Mileage unknown · Jun 10, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE FUEL GAUGE AND OIL GAUGE FAILED AND NO LONGER DISPLAYED READINGS. THE CONTACT STATED THAT THEY DID NOT KNOW THE OIL PRESSURE OR THE AMOUNT OF FUEL IN THE FUEL TANK. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE FUEL GAUGE AND OIL GAUGE FAILED AND NO LONGER DISPLAYED READINGS. THE CONTACT STATED THAT THEY DID NOT KNOW THE OIL PRESSURE OR THE AMOUNT OF FUEL IN THE FUEL TANK. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN AND THE CURRENT MILEAGE IS 71,941. UPDATED 07/21/11 *BF UPDATED 07/25/11
NHTSA ODI #10405881
70,000 miles · Jun 1, 2011
Electrical SystemFuel System, Gasoline
ERRATIC FUEL GAUGE, REPORTS NO FUEL EVEN WHEN FUEL AVAILABLE, REPORTS 1/4 TANK OF FUEL AVAILABLE AND NO FUEL MAY BE AVAILABLE OR I MAY HAVE JUST FILLED THE TANK; ALSO REPORTS NO FUEL OR LOW FUEL WHEN TANK HAS BEEN FILLED. VEHICLE HAS STALLED OUT AND WOULD NOT START; WAS OUT OF FUEL BUT GAUGE INDICATED 1/4 TANK OF FUEL. OIL GAUGE…
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ERRATIC FUEL GAUGE, REPORTS NO FUEL EVEN WHEN FUEL AVAILABLE, REPORTS 1/4 TANK OF FUEL AVAILABLE AND NO FUEL MAY BE AVAILABLE OR I MAY HAVE JUST FILLED THE TANK; ALSO REPORTS NO FUEL OR LOW FUEL WHEN TANK HAS BEEN FILLED. VEHICLE HAS STALLED OUT AND WOULD NOT START; WAS OUT OF FUEL BUT GAUGE INDICATED 1/4 TANK OF FUEL. OIL GAUGE HAS ALSO BECOME ERRATIC; AND GOES FROM SHOWING NO OIL PRESSURE TO LOW OIL PRESSURE TO VERY HIGH PRESSURE. HAVE TO PULL OVER IMMEDIATELY AND CHECK OIL LEVEL AT SIDE OF ROAD OR WHERE EVER AVAILABLE TO DO SO AT TIME. NOT ALWAYS SAFE AREA TO PULL OFF. BOTH ISSUES CREATE VERY HAZARDOUS AND DANGEROUS SITUATIONS FOR THE DRIVER AND PASSENGERS IN THE VEHICLE.
NHTSA ODI #10404929
104,000 miles · Jun 1, 2011
Electrical SystemExterior Lighting
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE GASOLINE GAUGE AND THE SPEEDOMETER FAILED. SHE WAS UNABLE TO SEE HOW FAST SHE WAS TRAVELING OR WHETHER OR NOT SHE HAD A SUFFICIENT AMOUNT OF FUEL IN THE VEHICLE. IN ADDITION, THE HEADLIGHTS WOULD ALSO SHUT OFF ON AN INTERMITTENT BASIS WHICH CAUSED HER…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE GASOLINE GAUGE AND THE SPEEDOMETER FAILED. SHE WAS UNABLE TO SEE HOW FAST SHE WAS TRAVELING OR WHETHER OR NOT SHE HAD A SUFFICIENT AMOUNT OF FUEL IN THE VEHICLE. IN ADDITION, THE HEADLIGHTS WOULD ALSO SHUT OFF ON AN INTERMITTENT BASIS WHICH CAUSED HER TO CHANGE THE BULBS FREQUENTLY. THE VEHICLE WAS NOT INSPECTED BY A DEALER NOR HAD IT BEEN REPAIRED. THE MANUFACTURER WAS CONTACTED AND ADVISED HER THAT THERE WERE NO RECALLS ON THE VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 104,000.
NHTSA ODI #10404085
100,000 miles · May 26, 2011
Electrical System
1.) NOTHING I CAN THINK OF THAT I DID CAUSED THE PROBLEM TO START. 2.) THE SPEEDOMETER IN MY 2005 TRAILBLAZER SIMPLY DOES NOT TELL THE CORRECT SPEED. NEARLY EVER TIME I DRIVE THE TACK WILL EITHER STAY AT 0 OR WILL GO UP TO AND BEYOND 120 MPH. I HAVE RESORTED TO USING MY GPS TO TELL MY SPEED, BUT IT IS A LARGE INCONVENIENCE TO M…
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1.) NOTHING I CAN THINK OF THAT I DID CAUSED THE PROBLEM TO START. 2.) THE SPEEDOMETER IN MY 2005 TRAILBLAZER SIMPLY DOES NOT TELL THE CORRECT SPEED. NEARLY EVER TIME I DRIVE THE TACK WILL EITHER STAY AT 0 OR WILL GO UP TO AND BEYOND 120 MPH. I HAVE RESORTED TO USING MY GPS TO TELL MY SPEED, BUT IT IS A LARGE INCONVENIENCE TO ME AND MAY OTHERS THAT I HAVE FOUND ONLINE. 3.) I HAVE JUST BEGUN TO RESEARCH THE PROBLEM SO I HAVE NOT DONE ANYTHING TO FIX THE ISSUE. *TR
NHTSA ODI #10402873
50,000 miles · May 25, 2011
Electrical SystemFuel System, Gasoline
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 35 MPH THE SPEEDOMETER BEGAN TO MOVE ERRATICALLY. THE SPEEDOMETER READING FLUCTUATED AND DISPLAYED THE INCORRECT SPEEDS. THE FUEL GAUGE ALSO DID NOT DISPLAY THE ACCURATE AMOUNT OF GASOLINE IN THE FUEL TANK. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 35 MPH THE SPEEDOMETER BEGAN TO MOVE ERRATICALLY. THE SPEEDOMETER READING FLUCTUATED AND DISPLAYED THE INCORRECT SPEEDS. THE FUEL GAUGE ALSO DID NOT DISPLAY THE ACCURATE AMOUNT OF GASOLINE IN THE FUEL TANK. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIANS STATED THE FUEL LEVEL SENSOR AND THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THERE WAS AN OPEN INVESTIGATION UNDER NHTSA ACTION NUMBER: DP10001 (FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP) WHICH MAY BE RELATED TO THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND AGREED TO COVER THE REPAIR COST FOR THE INSTRUMENT CLUSTER. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 50,000.
NHTSA ODI #10402723
74,112 miles · May 18, 2011
Electrical System
I HAVE A 2005 CHEVY TRAILBLAZER THAT I JUST FOUND OUT NEEDS A BLOWER MOTOR RESISTOR REPLACED. THIS SOUNDS LIKE A VERY COMMON ISSUE WITH THE CHEVY VEHICLE. THE WIRES WERE MELTED BY THE CONNECTION WHICH COULD EASILY SPARK A FIRE. WITH THREE YOUNG CHILDREN IN CAR SEATS A FIRE INSIDE THE CABIN OF THE VEHICLE WOULD BE DISASTROUS. …
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I HAVE A 2005 CHEVY TRAILBLAZER THAT I JUST FOUND OUT NEEDS A BLOWER MOTOR RESISTOR REPLACED. THIS SOUNDS LIKE A VERY COMMON ISSUE WITH THE CHEVY VEHICLE. THE WIRES WERE MELTED BY THE CONNECTION WHICH COULD EASILY SPARK A FIRE. WITH THREE YOUNG CHILDREN IN CAR SEATS A FIRE INSIDE THE CABIN OF THE VEHICLE WOULD BE DISASTROUS. PLEASE MAKE THEM RECALL THIS AND TAKE CARE OF THIS ISSUE. THANK YOU, *TR
NHTSA ODI #10401508
58,000 miles · May 13, 2011
Electrical SystemFuel System, Gasoline
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE REFUELING THE VEHICLE, THE CONTACT NOTICED THAT THE EMPTY FUEL WARNING LIGHT WAS ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT THE FUEL GAUGE READING WAS INACCURATE AND WOULD FLUCTUATE SPORADICALLY. THE VEHICLE WAS TAKEN TO TWO DIFFERENT INDEPENDENT MECHANIC…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE REFUELING THE VEHICLE, THE CONTACT NOTICED THAT THE EMPTY FUEL WARNING LIGHT WAS ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT THE FUEL GAUGE READING WAS INACCURATE AND WOULD FLUCTUATE SPORADICALLY. THE VEHICLE WAS TAKEN TO TWO DIFFERENT INDEPENDENT MECHANICS. THE MECHANIC STATED THAT THE ENTIRE INSTRUMENT PANEL WOULD NEED TO BE REPLACED. ALSO, THE CONTACT STATED THAT THE SPEEDOMETER READING WOULD ALSO FLUCTUATE INTERMITTENTLY AND PROVIDE INACCURATE READINGS. THERE WAS A CONCURRENT INVESTIGATION FOR THE FAILURE UNDER NHTSA ACTION NUMBER: DP10001 (FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP) THAT THE CONTACT BELIEVED COULD HAVE BEEN RELATED TO THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNAVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 58,000.
NHTSA ODI #10400772
80,000 miles · May 13, 2011
Electrical System
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE ENTIRE INSTRUMENT CLUSTER FAILED. THE DEALER WAS NOT CONTACTED AND THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000 AND THE CURRENT MILEAGE WAS 102,000.
NHTSA ODI #10400760
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.