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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)

4 of 181 complaints match · Driver assistance · crash/fire/injury only · clear filters

Feb 19, 2025BrakesDriver assistanceCrash2 injuries

A loud popping noise heard through the radio when light pressure applied to brakes. Noise loud enough to scare the hell out of all the occupants in the car. Brakes squeaked when car was in reverse. Tried to slow down on wet pavement. Car started to veer to the right. Forward collision warning nor automatic emergency braking worked. Pushed brake all the way to the floor and the car did not slow. Rear ended another car. No airbags deployed. My passenger was okay. I got diagnosed with a concussion. Do not know if the occupants in the other car were injured.

NHTSA ODI 11643617

Jun 20, 2023BrakesDriver assistanceCrash1 injury

Brakes failed and myself and others were in harms way. To my knowledge the car was totaled as the air bags did deploy.

NHTSA ODI 11527819

Dec 17, 2022AirbagsDriver assistanceCrash

Someone pulled out in front of me going 45 mph and totaled my car when they smashed into the front drivers side of my vehicle. My airbags didn’t deploy and no warning notifications or emergency braking ever occurred. This is dangerous and was severe enough to total my vehicle. My airbags should have deployed. No warning lights or any other issues when it occurred. It was inspected by insurance and determined a total loss.

NHTSA ODI 11497875

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 →