Home · 2021 Chevrolet Trailblazer · Complaints

What 181 owners told NHTSA about the 2021 Chevrolet Trailblazer

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (181)Crash / fire / injury (9)Electrical system (38)Transmission & drivetrain (35)Engine (33)Brakes (31)Fuel system (17)Driver assistance (10)Body & structure (8)Steering (6)Speed control (5)Visibility & wipers (4)

1 of 181 complaints match · Electrical system · crash/fire/injury only · clear filters

Sep 6, 2021Electrical systemBrakesDriver assistanceCrashFire

Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car.

NHTSA ODI 11431843

Working with the data? Download all 181 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Chevrolet Trailblazer verdict →