NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
30 reportsClear category filter63,000 miles · Feb 25, 2022
EngineFire
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that after his wife had parked the vehicle at a high school parking lot, a passerby heard a clicking noise and saw smoke coming from the vehicle before the vehicle caught-on fire. The fire started in the engine compartment. The fire department was contacted and ar…
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The contact owns a 2005 Chevrolet Trailblazer. The contact stated that after his wife had parked the vehicle at a high school parking lot, a passerby heard a clicking noise and saw smoke coming from the vehicle before the vehicle caught-on fire. The fire started in the engine compartment. The fire department was contacted and arrived and extinguished the fire. The contact was unaware if a fire report was filed. The vehicle was towed from the scene to a holding lot. The vehicle was not repaired. The manufacturer was not contacted or notified of the failure. The approximate failure mileage 63,000.
NHTSA ODI #11454043
173,000 miles · Aug 15, 2018
Engine
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED TO 30 MPH AND SHUT DOWN AT A SLIGHT ELEVATION. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE FAILURE OCCURRED TWO DAYS AFTER THE VEHICLE WAS PURCHASED FROM AN INDEPENDENT MECHANIC. THE CONTACT CALLED …
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED TO 30 MPH AND SHUT DOWN AT A SLIGHT ELEVATION. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE FAILURE OCCURRED TWO DAYS AFTER THE VEHICLE WAS PURCHASED FROM AN INDEPENDENT MECHANIC. THE CONTACT CALLED THE MECHANIC AND WAS INFORMED THAT THE VEHICLE WOULD BE PICKED UP FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE DEALER WAS NOT CALLED AND THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 173,000.
NHTSA ODI #11120203
130,000 miles · May 22, 2018
Electronic Stability Control (esc)Engine
VEHICLE ENGINE STALLS WHILE DRIVING. THE CAR SHUTS OFF WITHOUT WARNING. THIS IS DANGEROUS AND NOT SAFE! I SHUT OFF WHILE DRIVING ON THE HIGHWAY AND WHEN I WAS ABLE TO GET IT OFF THE HIGHWAY, IT STOPPED IN THE CITY. REPLACED THE ELECTRICAL BODY PER THE DIAGNOSIS AND STILL EXPERIENCING THIS ISSUE
NHTSA ODI #11097268
70,000 miles · Jan 15, 2018
Electrical SystemEngineUnknown Or Other
SINCE THE PURCHASE MY TB ENGINE WILL STOP WHEN AC AND HEATER IS ON ON STOP LIGHT, THAT IT WAS DELAYING WHILE DRIVING. IT GOT WORSE AFTER "WARRANTY WAS OUT, I BELIEVE IN JULY 2007.NO ONE CAN FIND THE CAUSE, BUT THINKING ITS ALL SYSTEM FAULTY., ENGINE, ELECTRONICS, FANS. COULD I AFFORD A NEW CAR, I WOULD NOT KEEP THIS CAR, AS NOW…
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SINCE THE PURCHASE MY TB ENGINE WILL STOP WHEN AC AND HEATER IS ON ON STOP LIGHT, THAT IT WAS DELAYING WHILE DRIVING. IT GOT WORSE AFTER "WARRANTY WAS OUT, I BELIEVE IN JULY 2007.NO ONE CAN FIND THE CAUSE, BUT THINKING ITS ALL SYSTEM FAULTY., ENGINE, ELECTRONICS, FANS. COULD I AFFORD A NEW CAR, I WOULD NOT KEEP THIS CAR, AS NOW I KNOW IT WAS THE WORSE YEAR MAKING OF ALL. NOW I ONLY PRAY TO STAY ALIVE WHILE DRIVING AND NOT GET INTO SOME BEYOND MY CONTROL BUT FAULTY GM MODEL MAKERS
NHTSA ODI #11062893
115,000 miles · Dec 11, 2017
Engine
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING AT 50 MPH, THE VEHICLE SUDDENLY REDUCED SPEED TO 20 MPH AND JERKED ABRUPTLY. IN ADDITION, THE REDUCED ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFA…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING AT 50 MPH, THE VEHICLE SUDDENLY REDUCED SPEED TO 20 MPH AND JERKED ABRUPTLY. IN ADDITION, THE REDUCED ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 115,000.
NHTSA ODI #11053986
Mileage unknown · Jul 25, 2017
EngineCrash
VEHICLE SHUTS OFF WHEN SITTING IDLE OR WHEN CHANGING BETWEEN THE GAS AND BRAKES. I WAS HIT IN THE REAR THIS MORNING WHILE SITTING IN TRAFFIC. THANKFULLY NEITHER VEHICLE WAS DAMAGED. I GOOGLED THIS ISSUE A D THERE ARE THOUSANDS OF ISSUES.
NHTSA ODI #11010498
120,000 miles · Jul 1, 2016
EnginePower TrainFire
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE OPERATING THE VEHICLE, SMOKE EMITTED FROM THE HOOD. THE CONTACT PULLED OVER AND DISCOVERED FLAMES UNDER THE HOOD. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FAILURE WAS DUE TO A FAILED GM/AC D…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE OPERATING THE VEHICLE, SMOKE EMITTED FROM THE HOOD. THE CONTACT PULLED OVER AND DISCOVERED FLAMES UNDER THE HOOD. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FAILURE WAS DUE TO A FAILED GM/AC DELCO TRANSMISSION COOLANT LINE FITTING, WHICH CAUSED TRANSMISSION COOLANT TO LEAK OUT ONTO THE CATALYTIC CONVERTER AND EXHAUST SYSTEM. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 120,000.
NHTSA ODI #10882089
130,000 miles · Feb 16, 2016
EngineFuel/propulsion SystemVehicle Speed Control
CAR WILL NOT ACCELERATE. REVS UP REALLY HIGH WITHOUT ACCELERATION.
NHTSA ODI #10836426
58,584 miles · Feb 8, 2016
Electrical SystemEngineSteering
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE STEERING WHEEL BECAME DIFFICULT TO TURN AND THE SPEEDOMETER FAILED. IN ADDITION, THE REAR HATCH LOCK FAILED CAUSING THE CONTACT TO BE UNABLE TO UNLOCK THE REAR HATCH AND THE FRONT ROTORS FAILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO RE…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE STEERING WHEEL BECAME DIFFICULT TO TURN AND THE SPEEDOMETER FAILED. IN ADDITION, THE REAR HATCH LOCK FAILED CAUSING THE CONTACT TO BE UNABLE TO UNLOCK THE REAR HATCH AND THE FRONT ROTORS FAILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO REPLACED THE POWER STEERING PUMP AND THE FRONT ROTORS. THE SPEEDOMETER AND REAR HATCH WERE NOT REPAIRED. THE CONTACT ALSO STATED THAT THERE WAS A STRONG ABNORMAL ODOR PRESENT INSIDE THE VEHICLE AND THE ENGINE WARNING LIGHT ILLUMINATED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 58,584.
NHTSA ODI #10824767
160,107 miles · Apr 10, 2015
Electrical SystemEngineExterior Lighting
THE HEADLIGHTS WORK THEN SHUT OFF. (ON THE WAY TO WORK IN A DOWNPOUR, NO LESS) DASHBOARD LIGHTS PARTIALLY WORKING. (IF I GO OVER 40 MPG CAN'T TELL WHAT MY SPEED IS) WAS WORKING CORRECTLY FOR A COUPLE OF DAYS NOW NOTHING. I CHECKED FOR RECALLS AND THERE ARE RECALLS FOR 2006-20XX (NHTSA 14V755000 ) JUST WONDERING, AFTER FINDIN…
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THE HEADLIGHTS WORK THEN SHUT OFF. (ON THE WAY TO WORK IN A DOWNPOUR, NO LESS) DASHBOARD LIGHTS PARTIALLY WORKING. (IF I GO OVER 40 MPG CAN'T TELL WHAT MY SPEED IS) WAS WORKING CORRECTLY FOR A COUPLE OF DAYS NOW NOTHING. I CHECKED FOR RECALLS AND THERE ARE RECALLS FOR 2006-20XX (NHTSA 14V755000 ) JUST WONDERING, AFTER FINDING ON THE INTERNET, NUMEROUS 2005 OWNERS WITH SAME PROBLEM, WHY THIS MODEL WASN'T INCLUDED IN THE RECALLS? I WOULD LIKE TO FILE A COMPLAINT ON THE POTENTIALLY DEADLY PROBLEM OF THE 2005 CHEVY TRAILBLAZER THAT SHOULD BE CORRECTED AND INCLUDED IN THIS RECALL. THANK YOU *TR
NHTSA ODI #10704878
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.