2021 Chevrolet Trailblazer problems and complaints
Owners have filed 195 complaints with NHTSA about the 2021 Chevrolet Trailblazer. The most-reported areas: Unknown Or Other (54), Power Train (41), Electrical System (41).
Key takeaways
- 195 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 | 54 | 28% |
| Power Train | 41 | 21% |
| Electrical System | 41 | 21% |
| Engine | 38 | 19% |
| Service Brakes | 32 | 16% |
| Fuel/Propulsion System | 17 | 9% |
| Forward Collision Avoidance | 11 | 6% |
| Structure | 8 | 4% |
| Steering | 6 | 3% |
| Vehicle Speed Control | 5 | 3% |
| Visibility/Wiper | 4 | 2% |
| Back Over Prevention | 3 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| 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.
Power Train - filed 2026-10-05
My 2021 Trailblazer does not shift into drive properly from park or reverse. When shifting into drive, the engine revs but does not move forward. In some cases, the vehicle also shakes and jolts for several seconds. It is also slow to shift into higher gears at high speeds on the freeway. In cases of quick acceleratio...
Service Brakes,forward Collision Avoidance - filed 2026-10-03
ABS brake system failed causing breaking to surge and not work correctly and not stop like it should resulting in having to have the ABS module and pump replaced at an extreme cost. With no clear cause and using the same parts this is likely to happen again. Had to be taken to the dealer because it required special sof...
Unknown Or Other - filed 2026-09-15
2021 Chevy Trailblazer has a shift to park sensor issue. Car is in park and the sensor does not recognize that it is in park and displays a safety message to place car in park and continues to beep. Takes numerous attempts of taking car out of park and back into park to get it to recognize that the shifter is now in ...
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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.