2021 Chevrolet Trailblazer problems and complaints
Owners have filed 201 complaints with NHTSA about the 2021 Chevrolet Trailblazer. The most-reported areas: Unknown Or Other (56), Power Train (42), Electrical System (41).
Key takeaways
- 201 owner complaints on file with NHTSA.
- 7 involve a crash, 3 a fire, 5 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Unknown Or Other | 56 | 28% |
| Power Train | 42 | 21% |
| Electrical System | 41 | 20% |
| Engine | 40 | 20% |
| Service Brakes | 33 | 16% |
| Fuel/Propulsion System | 17 | 8% |
| Forward Collision Avoidance | 11 | 5% |
| Structure | 8 | 4% |
| Steering | 7 | 3% |
| Vehicle Speed Control | 5 | 2% |
| Visibility/Wiper | 4 | 2% |
| Back Over Prevention | 3 | 1% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Chevrolet Trailblazer
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Oil filter
- Engine air filter
- Cabin air filter
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Chevrolet Trailblazer SUV FWD Later Release | 5/5 | 5/5 | 5/5 | 4/5 |
| 2021 Chevrolet Trailblazer SUV AWD Later Release | 5/5 | 5/5 | 5/5 | 4/5 |
| 2021 Chevrolet Trailblazer SUV FWD Early Release | 4/5 | 4/5 | 5/5 | 4/5 |
| 2021 Chevrolet Trailblazer SUV AWD Early Release | 4/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Steering,engine - filed 2026-11-02
I am filing this complaint regarding a serious engine failure in my 2021 Chevrolet Trailblazer LS that occurred while I was driving. While driving, the vehicle displayed the warning message “Engine Power Reduced” and I experienced a loss of power steering. Approximately 30 seconds after these warnings and symptoms app...
Service Brakes - filed 2026-11-02
I am filing this complaint regarding a serious and potentially life-threatening braking malfunction involving my 2021 Chevrolet Trailblazer RS. While actively driving the vehicle, three separate warning messages suddenly appeared on the dashboard: Service Power Steering Service ESC Brake System Failure At approximate...
Power Train - filed 2026-10-31
As I was driving down the road the check engine light lit on and vehicle went into limp mode which didn’t let me accelerate over 20 miles an hour. This happened in a busy intersection after safely and cautiously moving to the right to avoid any traffic collisions we got it towed. The codes that came up were P0700 and P...
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More for the 2021 Chevrolet Trailblazer
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.