2021 Chevrolet Trailblazer service brakes problems
29 owner complaints filed with NHTSA name the service brakes on the 2021 Chevrolet Trailblazer — 15% of all complaints for this model year.
What owners report
“While driving on Thursday, June 4, 2026, the vehicle experienced a sudden and complete failure of the electronic braking/power brake assist system. Simultaneously, multiple safety warnings illuminated on the dashboard display, including a persistent service wrench icon, a traction control warning…”
filed Jun 5, 2026
“When stopped at a red light & the light turns green & I accelerate, the vehicle does not move. It makes a loud noise and jumps. This happens way too many times. There’s also an issue with the brakes, when you press on them, you can hear something grinding, which should not be happening because I…”
filed Mar 24, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Sensor connection contamination in the electronic brake boost system may cause an…Campaign 20V588000 · Sep 24, 2020
Service Brakes problems in other Trailblazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Trailblazer | 1 | 5% |
| 2024 Trailblazer | 4 | 13% |
| 2023 Trailblazer | 14 | 23% |
| 2022 Trailblazer | 14 | 13% |
| 2009 Trailblazer | 1 | 4% |
| 2008 Trailblazer | 6 | 3% |
| 2007 Trailblazer | 9 | 1% |
| 2006 Trailblazer | 12 | 1% |
| 2005 Trailblazer | 14 | 1% |
| 2004 Trailblazer | 2 | 0% |
| 2003 Trailblazer | 9 | 1% |
| 2002 Trailblazer | 9 | 1% |
Other reported problem areas on the 2021 Chevrolet Trailblazer
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.