NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
1,466 reports70,000 miles · Jul 16, 2009
Electrical SystemFuel System, Gasoline
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. SINCE JULY 5, 2009, THE FUEL GAUGE DIAL FAILS TO DISPLAY THE CORRECT AMOUNT OF GASOLINE IN THE TANK. THE CONTACT FEELS THAT THIS IS A SAFETY ISSUE BECAUSE FUEL BEGAN TO LEAK OUT. IN ADDITION, THE TANK COULD BE EMPTY, BUT THE FUEL GAUGE WOULD DISPLAY A FULL TANK. THE VIN WAS U…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. SINCE JULY 5, 2009, THE FUEL GAUGE DIAL FAILS TO DISPLAY THE CORRECT AMOUNT OF GASOLINE IN THE TANK. THE CONTACT FEELS THAT THIS IS A SAFETY ISSUE BECAUSE FUEL BEGAN TO LEAK OUT. IN ADDITION, THE TANK COULD BE EMPTY, BUT THE FUEL GAUGE WOULD DISPLAY A FULL TANK. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 70,000.
NHTSA ODI #10277023
25,615 miles · Jul 14, 2009
Electrical System
A/C RESISTOR AND WIRING HARNESS MELTED. *TR
NHTSA ODI #10276776
57 miles · Jul 13, 2009
Power Train
WHILE DRIVING ON THE HIGHWAY, MY TRUCK RPM'S BEGAN TO REV, AND I BEGAN TO LOSE SPEED. MY TRAILBLAZER WOULD NOT SHIFT OUT OF SECOND GEAR NOW. I DISCOVERED A LEAK INTO THE TRANSMISSION COOLING LINE AND REPLACED IT. I'VE ALSO CHANGED THE FLUID AND FILTER. AFTER TAKING MY TRUCK TO A LOCAL AUTOZONE FOR A CODE SCAN, WHICH BROUGHT BACK…
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WHILE DRIVING ON THE HIGHWAY, MY TRUCK RPM'S BEGAN TO REV, AND I BEGAN TO LOSE SPEED. MY TRAILBLAZER WOULD NOT SHIFT OUT OF SECOND GEAR NOW. I DISCOVERED A LEAK INTO THE TRANSMISSION COOLING LINE AND REPLACED IT. I'VE ALSO CHANGED THE FLUID AND FILTER. AFTER TAKING MY TRUCK TO A LOCAL AUTOZONE FOR A CODE SCAN, WHICH BROUGHT BACK NO CODES, I TOOK THE TRUCK TO MY LOCAL DEALER FOR A DIAGNOSIS. THEY CHARGED ME $105.00 TO TELL ME THAT THE TRUCK WASN'T "THROWING CODES" I ALREADY KNEW THAT! THEY TOLD ME THAT IT WAS GOING TO BE APPROX. $800.00 JUST TO PULL THE TRANSMISSION APART TO FIND THE PROBLEM AND $400.00 TO PUT IT BACK IN. THAT DOESN'T INCLUDE THE COST OF FIXING IT! AFTER CONSULTING WITH AN ASE CERTIFIED MECHANIC, I CHANGED THE TCC (TRANSMISSION CLUTCH CONVERTER) SOLENOID TO NO AVAIL. THE PROBLEM STILL EXISTS! GM WILL OFFER NO ASSISTANCE UNTIL I PAY THE DEALER TO DISASSEMBLE THE TRANSMISSION, THEN "THERE IS A POSSIBILITY" THAT THE FIX WILL BE COVERED. THIS VEHICLE HAS NOT DONE ANY TOWING AND ONLY HAS 56,600 MILES ON IT! THERE IS NO REASON FOR A TRANSMISSION FAILURE! *TR
NHTSA ODI #10276495
60,000 miles · Jul 12, 2009
Fuel System, Gasoline
THE GAS GAUGE IN MY 2005 CHEVY TRAILBLAZER IS ALWAYS READING EMPTY. I HAVE TO GAUGE MY GAS TANK BY RESETTING MY TRIP ODOMETER. ALL THE TIME. I HAVE HEARD THAT IT BAD PART - THE FUEL SENSOR ON ALL CHEVY CARS 2003 - 2006. THERE SHOULD BE A RECALL BY GM ON THIS FUEL SENSOR. *TR
NHTSA ODI #10276435
99,000 miles · Jun 28, 2009
Electrical System
SPEEDOMETER STOP WORKING ON 2005 CHEVY TRAILBLAZER, AND ALSO THE GAS GAUGE DOES NOT WORK. *TR
NHTSA ODI #10275142
69,608 miles · Jun 27, 2009
Fuel System, Other
AFTER FILLING VEHICLE WITH GAS, THE FUEL GAUGE BEGAN JUMPING WILDLY. IT RESET AFTER SOME TIME. LATER, THE FUEL GAUGE FAILED TO READ PROPERLY. NOW THE FUEL GAUGE FAILS TO EVER READ PROPERLY. THIS CAUSED MY WIFE'S VEHICLE TO RUN OUT OF GAS ON THE INTERSTATE IN RUSH HOUR TRAFFIC. *TR
NHTSA ODI #10275100
140,936 miles · Jun 26, 2009
Fuel System, Gasoline
I AM HAVING A PROBLEM WITH MY FUEL GAUGE OR FUEL PUMP. JUNE 15-24 2009 I WAS PUTTING GAS INTO MY VEHICLE EVERY DAY BECAUSE IT WAS READING THAT MY TANK WAS EMPTY. ON JUNE 24, I COMPLETELY FILLED UP MY TANK AND THE LIGHT REMAINED ON AS IF MY TANK WAS EMPTY. THE LIGHT REMAINED ON UNTIL THE NEXT DAY. AS I WAS DRIVING TO WORK, THE GA…
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I AM HAVING A PROBLEM WITH MY FUEL GAUGE OR FUEL PUMP. JUNE 15-24 2009 I WAS PUTTING GAS INTO MY VEHICLE EVERY DAY BECAUSE IT WAS READING THAT MY TANK WAS EMPTY. ON JUNE 24, I COMPLETELY FILLED UP MY TANK AND THE LIGHT REMAINED ON AS IF MY TANK WAS EMPTY. THE LIGHT REMAINED ON UNTIL THE NEXT DAY. AS I WAS DRIVING TO WORK, THE GAUGE MOVED UP SHOWING THAT I ONLY HAD A 1/4 OF A TANK OF GAS. MY GAUGE IS GIVING ME A FALSE READING OF THE AMOUNT OF GAS I HAVE IN MY TANK AND I NOW HAVE TO DEPEND ON THE MILES PER TRIP TO MAKE SURE I DON'T RUN OUT OF GAS. *TR
NHTSA ODI #10275047
6,100 miles · Jun 25, 2009
Electrical System
2005 CHEVY TRAIL BLAZER. SPEEDOMETER FAILED AT 5900 MILES.. 06-24-09 I LOOKED UP SAFTY RECALS THERE ARE ALOT OF THE SAME POBLEMS ON THIS VEHICLE. *TR
NHTSA ODI #10274940
72,000 miles · Jun 15, 2009
Electrical SystemPower Train
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT HEARD A LOUD NOISE OUTSIDE THE VEHICLE. THE TRANSMISSION BEGAN TO SLIP AND THERE WERE NO WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC ON TWO SEPARATE OCCASIONS FOR INSPE…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT HEARD A LOUD NOISE OUTSIDE THE VEHICLE. THE TRANSMISSION BEGAN TO SLIP AND THERE WERE NO WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC ON TWO SEPARATE OCCASIONS FOR INSPECTION. THE TECHNICIAN STATED THAT THE ALTERNATOR FAILED. THE WARRANTY EXPIRED ON THE VEHICLE AND THE MANUFACTURER IS IN THE PROCESS OF BEING NOTIFIED. THE VEHICLE IS ABLE TO BE DRIVEN AND HAS NOT BEEN REPAIRED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 72,000 AND CURRENT MILEAGE WAS 76,000.
NHTSA ODI #10273822
Mileage unknown · Jun 11, 2009
Electrical SystemEquipment
MY SPEEDOMETER IS ACTING BIZARRE, IT JUST GOES ROUND AND ROUND, STARTED ABUT 2 MONTHS AGO. I UNDERSTAND THAT THE 2003 & 2004 WERE RECALLED FOR THE CHEVY TRAILBLAZER. NOW WITHIN THE LAST WEEK, MY GAS GAGE HAS GONE CRAZY NOT SHOWING ACCURATELY, FIRST ON EMPTY LIGHT ON LOW FUEL, THEN WHILE I'M DRIVING LIGHT WILL GO OFF AND IT REG…
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MY SPEEDOMETER IS ACTING BIZARRE, IT JUST GOES ROUND AND ROUND, STARTED ABUT 2 MONTHS AGO. I UNDERSTAND THAT THE 2003 & 2004 WERE RECALLED FOR THE CHEVY TRAILBLAZER. NOW WITHIN THE LAST WEEK, MY GAS GAGE HAS GONE CRAZY NOT SHOWING ACCURATELY, FIRST ON EMPTY LIGHT ON LOW FUEL, THEN WHILE I'M DRIVING LIGHT WILL GO OFF AND IT REGISTERS TO SHOW FULL TAKE WHEN ACTUALLY I MAY HAVE 1/2 TANK. I TOOK TO REPAIR SHOP EACH ITEM IS OVER 300.00 FOR REPAIR. HE SUGGESTED TO LOOK INTO SEE IF THE CENSOR WAS RECALLED FOR THE GAS, AND THAT 03 & 04 WAS RECALLED FOR THE SPEEDOMETER AND IF 05'S WERE BEING RECALLED. *TR
NHTSA ODI #10273530
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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