2008 Chevrolet Trailblazer: Reliability Data

Source: NHTSA — 261 complaints
261
Total Complaints
75,000mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
17
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

48,752 25th Percentile
75,000 Median Mileage
101,996 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
57
AIR BAGS
27
ENGINE
21
EXTERIOR LIGHTING
17
STEERING
11
SEAT BELTS
10
ELECTRONIC STABILITY CONTROL (ESC)
10
SERVICE BRAKES, HYDRAULIC
8
POWER TRAIN
7
VEHICLE SPEED CONTROL
7

Severity Assessment

17
Crashes
19
Fires
16
Injuries
0
Deaths

Sample Complaint Reports

"TL*THE CONTACT RENTED A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING BETWEEN 20-30 MPH, THE VEHICLE VEERED TO THE LEFT AND THE FRONT AND REAR DRIVER SIDE TIRES CRASHED INTO THE MEDIAN. AS A RESULT, THE SIDE CURTAIN AIR BAGS DEPLOYED. THE CONTACT STATED THAT SHE WAS UNSURE WHAT REPAIRS WERE MADE AND T..."
"NO CRUISE CONTROL INDICATOR LAMP ON DASH BOARD. THIS BECOMES A PROBLEM BECAUSE YOU DO NOT KNOW WHEN THE CRUISE CONTROL IS ACTIVE OR NOT, WHICH CAN CREATE AN ACCIDENT WHEN LETTING OFF THE GAS TO START TO DECELERATE. *TR"
"TL*THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 20 MPH, THE SIDE WINDOW CURTAIN AIR BAGS SPONTANEOUSLY DEPLOYED. THE DEALER COULD NOT DETERMINE THE CAUSE OF THE FAILURE, BUT HYPOTHESIZED THAT THE CONTACT MUST HAVE DRIVEN OVER SOMETHING IN THE ROAD OR WAS DRIVING ON TW..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28