← New search

2008 Chevrolet Trailblazer

Owner reports · Recalls · Investigations

More warning signs than most Trailblazer years

Owner complaints for the 2008 Chevrolet Trailblazer are substantially higher than the model-year median of 87.5.

About this comparison →

When problems were reported

Mileage at the reported incident

169 reports with mileage · 24 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 65 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 21 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

10 crash reports11 fire reports8 injury reports

Electrical System complaints

65 reports
Clear category filter
10 miles · Sep 16, 2011
Electrical System

WE PURCHASED A 2008 CHEVROLET TRAILBLAZER IN SEPTEMBER 2008. THE DAY WE DROVE IT HOME THE ENTIRE ELECTRICAL SYSTEM SHUT DOWN. THE LIGHTS, LOCKS, BLINKERS, AND ALL GAUGES WERE NOT WORKING. THE VEHICLE WAS TAKEN BACK TO THE CHEVROLET DEALER AND THE ONSTAR MODULE WAS REPLACED. A FEW MONTHS LATER THE ELECTRICAL SYSTEM FAILED AGAI…

Read full complaint

WE PURCHASED A 2008 CHEVROLET TRAILBLAZER IN SEPTEMBER 2008. THE DAY WE DROVE IT HOME THE ENTIRE ELECTRICAL SYSTEM SHUT DOWN. THE LIGHTS, LOCKS, BLINKERS, AND ALL GAUGES WERE NOT WORKING. THE VEHICLE WAS TAKEN BACK TO THE CHEVROLET DEALER AND THE ONSTAR MODULE WAS REPLACED. A FEW MONTHS LATER THE ELECTRICAL SYSTEM FAILED AGAIN, THIS HAS HAPPENED 3 MORE TIMES SINCE PURCHASING THE VEHICLE 3 YEARS AGO. THE VEHICLE HAS ALSO HAD THE CHECK ENGINE AND STABILITRACK LIGHTS TURN ON AND OFF NUMEROUS TIMES...SOMETIMES FOR A DAY OR TWO, SOMETIMES FOR A WEEK. THE VEHICLE HAS BEEN IN THE SHOP MORE THAN 13 TIMES IN 3 YEARS FOR ELECTRICAL RELATED PROBLEMS, SEVERAL ELECTRICAL MODULES HAVE BEEN REPLACED. MY GRANDMOTHER HAS THE SAME VEHICLE AND HAS HAD THE SAME TYPE OF PROBLEMS WITH THE ELECTRICAL SYSTEM. *TT

NHTSA ODI #10425828

6,000 miles · May 9, 2011
Electrical System

TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE VOLTAGE REGULATOR WAS CORRODED AND CAUSED THE BRAKE LIGHT UNIT ON THE REAR DRIVER'S SIDE TO ALSO CORRODE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE SOCKETS WERE REPLACED BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO A SECOND DEALER WHER…

Read full complaint

TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE VOLTAGE REGULATOR WAS CORRODED AND CAUSED THE BRAKE LIGHT UNIT ON THE REAR DRIVER'S SIDE TO ALSO CORRODE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE SOCKETS WERE REPLACED BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO A SECOND DEALER WHERE THE ALTERNATOR WAS REPLACED. THE FAILURE CONTINUED. THE VEHICLE WAS THEN TAKEN TO A THIRD DEALER WHERE IT WAS AWAITING REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHEN THE CONTACT NOTIFIED THEM TO FILE A COMPLAINT. THE FAILURE MILEAGE WAS 6,000 AND THE CURRENT MILEAGE WAS 50,000.

NHTSA ODI #10399632

62,000 miles · Feb 21, 2011
Electrical SystemExterior LightingSuspension

I WAS DRIVING DOWN A STATE HIGHWAY WITH MY CRUISE CONTROL SET AT 57 MPH AND ALL OF THE SUDDEN ALL OF THE LIGHTS CAME ON IN THE CONSOLE. MY ON STAR DID NOT WORK, NOR DID THE RADIO OR ANYTHING ELECTRICAL IN MY VEHICLE. MY VEHICLE WAS STILL RUNNING, BUT NONE OF THE GAUGES, LIGHTS, WINDOWS, ETC. WERE WORKING. I PULLED TO THE SIDE…

Read full complaint

I WAS DRIVING DOWN A STATE HIGHWAY WITH MY CRUISE CONTROL SET AT 57 MPH AND ALL OF THE SUDDEN ALL OF THE LIGHTS CAME ON IN THE CONSOLE. MY ON STAR DID NOT WORK, NOR DID THE RADIO OR ANYTHING ELECTRICAL IN MY VEHICLE. MY VEHICLE WAS STILL RUNNING, BUT NONE OF THE GAUGES, LIGHTS, WINDOWS, ETC. WERE WORKING. I PULLED TO THE SIDE OF THE ROAD AND THEN DROVE IT TO THE DEALERSHIP. THE DEALERSHIP KEPT THE VEHICLE FOR 3 WEEKS AND WERE NOT ABLE TO DIAGNOSE NOR FIX THE PROBLEM. ALL OF THE SUDDEN 3 WEEKS LATER THEY GOT INTO THE VEHICLE AND THE PROBLEM HAD RESOLVED ITSELF.

NHTSA ODI #10384885

Mileage unknown · Dec 7, 2009
Electrical System

WHILE ENTERING A GAS STATION THE VEHICLE IN FRONT OF ME SLAMMED ON THE BRAKES. THIS WAS DONE BECAUSE THE GM AT THE PUMP HAD IT'S BACKUP LIGHTS ON AND WASN'T EVEN BACKING UP. WHAT'S REALLY DISTURBING IS THE FACT PEOPLE WILL START TA IGNORE THESE IN DARK OR RAINY PARKING LOTS AND POTENTIALLY GET RUN OVER. SHOULDN'T BACKUP LIGHTS O…

Read full complaint

WHILE ENTERING A GAS STATION THE VEHICLE IN FRONT OF ME SLAMMED ON THE BRAKES. THIS WAS DONE BECAUSE THE GM AT THE PUMP HAD IT'S BACKUP LIGHTS ON AND WASN'T EVEN BACKING UP. WHAT'S REALLY DISTURBING IS THE FACT PEOPLE WILL START TA IGNORE THESE IN DARK OR RAINY PARKING LOTS AND POTENTIALLY GET RUN OVER. SHOULDN'T BACKUP LIGHTS ONLY BE USED FOR BACKING UP? THIS LOOKS LIKE A PROBLEM WITH THE WHOLE VEHICLE LINEUP. *TR

NHTSA ODI #10294822

400 miles · Feb 20, 2009
Electrical System

I BOUGHT THIS 08 CHEVY TRAILBLAZER NEW 9-30-08.FROM THE DATE I BOUGHT IT I NOTICED THE CHARGING HAND ON THE INSTRUMENT PANEL SHOWS THE BATTERY NOT CHARGING ABOUT 50% OF THE TIME,THE OWNERS MANUAL SAYS THIS IS A FUEL SAVING FEATURE .WHEN THE BATTERY IS FULLY CHARGED THE ALTERNATOR QUITS CHARGING.AFTER APPROXIMATELY 1 MONTH OF DR…

Read full complaint

I BOUGHT THIS 08 CHEVY TRAILBLAZER NEW 9-30-08.FROM THE DATE I BOUGHT IT I NOTICED THE CHARGING HAND ON THE INSTRUMENT PANEL SHOWS THE BATTERY NOT CHARGING ABOUT 50% OF THE TIME,THE OWNERS MANUAL SAYS THIS IS A FUEL SAVING FEATURE .WHEN THE BATTERY IS FULLY CHARGED THE ALTERNATOR QUITS CHARGING.AFTER APPROXIMATELY 1 MONTH OF DRIVING THIS VEH.I NOTICED WHEN IT QUIT FULLY CHARGING THE POWER WINDOWS WOULD NOT ROLL BUT 1/3RD OF THE WAY UP,THE VEH.CAN'T BE DRIVEN IN THE RAIN DUE TO THE WIPERS BARELY MOVING,THE BOSE STEREO SYSTEM LOSES POWER AND MALFUNCTIONS,AND IM SURE OTHER THINGS DON'T FUNCTION PROPERLY,THE TRANSMISSION MALFUNCTIONS AND WONT SHIFT LIKE IT IS DESIGNED TO DO,THE MILES PER GALLON GAUGE RESETS ITSELF WHILE THE VEH.IS MOVING. I HAVE HAD THE VEH.TO THE LOCAL CHEVY DEALER AND THEY DON'T HAVE A CLUE TO WHY IT IS DOING THIS,I THINK IF YOUR DRIVING ON A MAJOR HIGHWAY AND RUN INTO A HARD RAINSTORM YOU WOULD BE LUCKY TO GET OFF THE HIGHWAY BEFORE CAUSING A MAJOR ACCIDENT DUE TO THE WIPERS NOT WORKING PROPERLY,,I EXPERIENCED THE SITUATION ONCE BUT WAS LUCKY TRAFFIC WAS LIGHT. AM TAKING THE VEH.TO ANOTHER DEALER THIS WEEK TO SEE IF THEY CAN FIX THE PROBLEM. THE WIPERS NOT WORKING PROPERLY IS AN EXTREMELY DANGEROUS PROBLEM. *TR

NHTSA ODI #10259480

Official recalls

0

No recalls in this snapshot.

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

1

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.