Electrical System. Review the 617 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel System, Gasoline. Review the 435 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Exterior Lighting. Review the 140 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

59 crash reports25 fire reports41 injury reports

What owners actually said

1,466 reports

22,600 miles · Aug 23, 2006

Electrical System

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I BOUGHT AN 05 TRAILBLAZER EXT I HAVE HAD IT 9 MONTHS , I WENT TO START IT AND IT WOULD NOT TURN OVER NOTHING, IT WAS ALSO STUCK IN THE PARK POSITION, DEALERSHIP SAID I HAD A BAD BATTERY, I HAD IT CHECKED THROUGH AUTO ZONE WAS FINE , HAD IT TOWED THE TOW TRUCK DRIVER GOT IT OUT OF PARK AND WAS ABLE TO START IT. THE DEALERSHIP PROCEEDED TO SAY IT WAS THE BATTERY SO THEY CHANGED IT. I PICKED IT UP BROUGHT IT HOME AND PARKED IN THE DRIVEWAY LIKE BEFORE. THE NEXT MORNING IT WOULD NOT START AGAIN HAD IT TOWED TO THE DEALERSHIP WITH IT STUCK IN PARK AGAIN, THEY NOW HAVE SAID THAT THE IGNITION SWITCH WAS BAD , WHICH WOULD CAUSE IT NOT TO START AND BE STUCK IN PARK, SO I GUESS WE WILL SEE IF IT IS FIXED OR IF IT WILL GO BACK FOR THE THIRD TIME IN ONE WEEK. *JB

NHTSA ODI #10166375

15,000 miles · Aug 23, 2006

Service Brakes, Hydraulic

2005 CHEVY TRAILBLAZER BRAKING SYSTEM FAILURE...DURING NORMAL DRIVING WITHOUT ANY INDICATION THE BRAKE PEDAL WILL GO TO THE FLOOR WHEN DEPRESSED AND THE BRAKES ARE NOT APPLIED...AFTER SEVERAL PUMPS (7-10)THE PEDAL COMES BACK AND THE BRAKING SYSTEM STARTS WORKING AGAIN. THIS IS THE SECOND BRAKING FAILURE EVENT OF THIS TYPE FOR TH…

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NHTSA ODI #10166343

46,000 miles · Jul 27, 2006

Exterior Lighting

DT*: THE CONTACT STATED THE TAILLIGHTS STOPPED WORKING. THE DEALERSHIP REPAIRED THE TAILLIGHTS UNDER WARRANTY. WITHIN THREE MONTHS, THE LOW BEAM LIGHT STOPPED WORKING. THE CONTACT IS CONCERNED THERE MAY BE SOME UNSAFE ELECTRICAL PROBLEMS WITH THE VEHICLE.

NHTSA ODI #10163656

27,000 miles · Jul 25, 2006

Visibility

DT*: THE CONTACT STATED, WHILE WASHING THE VEHICLE, WATER LEAKED THROUGH THE WINDSHIELD MOLDING. THERE IS A NHTSA RECALL # 05V035000 WHICH PERTAINS TO THE VISIBILITY:WINDSHIELD. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN.

NHTSA ODI #10163386

26,000 miles · Jul 17, 2006

Tires

DT*: THE CONTACT STATED WHILE DRIVING 72 MPH THE TREADS ON THE DRIVER REAR TIRE SEPARATED WITHOUT WARNING. THE VEHICLE WAS MANEUVERED OFF THE ROAD. DAMAGED WAS CAUSED TO THE REAR BUMPER AND QUARTER PANEL ON THE DRIVER SIDE. THE DEALER HAS BEEN ALERTED.

NHTSA ODI #10162567

36,000 miles · Jul 10, 2006

Air BagsCrash

7/8/06, WHILE TRAVELING HIGHWAY 31 IN NILES, MICHIGAN, SPEED LIMIT OF 70 MPH, WE HIT A DEER HEAD ON WITH OUR 2005 CHEVY TRAILBLAZER LS, S/N. WE HAD NO TIME TO EVEN BRAKE PRIOR TO THE IMPACT. THE IMPACT TOOK OUT THE FRONT END OF THE CAR, PUSHING THE RADIATOR BACK INTO THE ENGINE COMPARTMENT. NEITHER AIR BAG DEPLOYED. THERE WER…

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NHTSA ODI #10161963

22,300 miles · Jun 14, 2006

Electrical System

DT*: THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS THE AUTOMATIC DASH LIGHTS AND HEADLIGHTS FAILED TO REMAIN ILLUMINATED AT NIGHT. THE FAILURE OCCURRED INTERMITTENTLY AND WITHOUT WARNING. THE DEALERSHIP REPLACED THE BODY CONTROL MODULE, CLEANED THE GROUND WIRES AND INSERTED A SNAP SHOT IN ATTEMPT TO REMEDY THE FAILURES. …

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NHTSA ODI #10159815

34,500 miles · Jun 13, 2006

Exterior LightingVisibility

DT*: THE CONTACT STATED WHILE DRIVING AT NIGHT, THE HEADLIGHTS DIM AND FLICKER ON AND OFF. THIS OCCURRED INTERMITTENTLY WITHOUT WARNING. THE FRONT PASSENGER POWER WINDOW RUBS AGAINST THE DOOR FRAME AND INTERMITTENTLY FAILS TO CLOSE. THE DEALERSHIP REPLACED THE ALTERNATOR; HOWEVER NO FURTHER INSPECTIONS HAVE BEEN MADE. THE M…

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NHTSA ODI #10159707

Mileage unknown · Jun 12, 2006

Vehicle Speed Control

WITH CRUISE CONTROL SET GOING DOWN HILL. THE VEHICLE DOESN'T HOLD THE SPEED YOU SET IT AT. DEPENDING ON THE SIZE OF THE HILL IT WILL GAIN BETWEEN 5 AND 15 MPH. *NM

NHTSA ODI #10159673

34,000 miles · Jun 5, 2006

Exterior Lighting

2005 TRAILBLAZER TURN SIGNAL BLINKS LIKE HAZARD LIGHT/4 WAY FLASHER. *JB

NHTSA ODI #10159040

Official recalls

06V417000 · Air Bags:frontal

Oct 31, 2006

CERTAIN VEHICLES ORIGINALLY BUILT WITH CLOTH SEATS THAT WERE EQUIPPED WITH AN AUTOMATIC AIR BAG PASSENGER SENSING SYSTEM AND LATER REUPHOLSTERED WITH AFTERMARKET LEATHER SEAT COVER KITS ARE INVOLVED. TESTING HAS INDICATED THAT THE AFTERMARKET LEATHER SEAT COVERS CAN CAUSE THE PASSENGER SENSING SYSTEM TO MALFUNCTION.

Consequence & remedy

Consequence: IF THE PASSENGER SENSING SYSTEM MALFUNCTIONS, THE FRONT AIR BAG ON THE PASSENGER SIDE MAY BE DISABLED WHEN IT SHOULD BE ENABLED, OR ENABLED WHEN IT SHOULD BE DISABLED. IN EITHER CASE, IN THE EVENT OF A CRASH THAT REQUIRES AIR BAG DEPLOYMENT, A FRONT PASSENGER'S LEVEL OF INJURY MAY BE INCREASED.

Remedy: BECAUSE A REPLACEMENT LEATHER SEAT COVER THAT IS COMPATIBLE WITH THE PASSENGER SENSING SYSTEM IS NOT AVAILABLE, GENERAL MOTORS (GM) WILL REPURCHASE THESE VEHICLES IN ACCORDANCE WITH THE TERMS STATED IN GM'S LETTER TO OWNERS. THE RECALL BEGAN ON NOVEMBER 6, 2006. OWNERS SHOULD CONTACT GM AT 1-877-477-1022 TO BEGIN THE PROCESS OF REPURCHASING THEIR VEHICLE.

05V035000 · Visibility:windshield

Feb 3, 2005

CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 212, 'WINDSHIELD MOUNTING.' THE WINDSHIELD URETHANE BEAD MAY NOT HAVE ADHERED TO THE BODY IN CERTAIN AREAS DURING THE CURE PROCESS.

Consequence & remedy

Consequence: IF A CRASH OCCURS, THE WINDSHIELD MAY NOT BE RETAINED, INCREASING THE RISK OF INJURY TO A VEHICLE OCCUPANT.

Remedy: DEALERS WILL REPLACE THE WINDSHIELD FREE OF CHARGE. THE RECALL BEGAN ON MARCH 10, 2005. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CHEVROLET AT 1-800-630-2438, OR GMC AT 1-866-996-9463.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

RQ17002 · 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

Fuel System, Other:storage:fuel Gauge System