2023 Chevrolet Trailblazer power train problems
10 owner complaints filed with NHTSA name the power train on the 2023 Chevrolet Trailblazer — 15% of all complaints for this model year.
What owners report
“The shift assembly is going bad and causing a Shift to Park error that GM is aware of. They have issued a Technical Service Bulletin about this exact part. The error code will cause the battery to run down leaving me stranded. The dealer has inspected the vehichle and ordered the necessary part to…”
filed Aug 19, 2026
“The contact owns a 2023 CHEVROLET Trailblazer. The contact stated that while parking the vehicle, the computer system failed to recognize that the vehicle had been shifted into the park position, causing a "Shift to Park" warning light to illuminate on the instrument cluster. Although the gear…”
filed May 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Trailblazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Trailblazer | 6 | 29% |
| 2024 Trailblazer | 7 | 21% |
| 2022 Trailblazer | 33 | 31% |
| 2021 Trailblazer | 40 | 21% |
| 2009 Trailblazer | 1 | 4% |
| 2008 Trailblazer | 10 | 5% |
| 2007 Trailblazer | 15 | 2% |
| 2006 Trailblazer | 50 | 5% |
| 2005 Trailblazer | 51 | 3% |
| 2004 Trailblazer | 62 | 6% |
| 2003 Trailblazer | 103 | 11% |
| 2002 Trailblazer | 310 | 27% |
Other reported problem areas on the 2023 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.