Chevrolet Trailblazer power train problems by year
703 NHTSA owner complaints name the power train across 15 Trailblazer model years. The most reported year is 2002 with 310 reports.
| Year | Power Train reports | Share | Median mileage | |
|---|---|---|---|---|
| 2025 Trailblazer | 6 | 32% | — | |
| 2024 Trailblazer | 7 | 22% | — | |
| 2023 Trailblazer | 9 | 15% | — | |
| 2022 Trailblazer | 32 | 30% | — | |
| 2021 Trailblazer | 38 | 20% | 32,000 mi | |
| 2009 Trailblazer | 1 | 4% | — | |
| 2008 Trailblazer | 10 | 5% | — | |
| 2007 Trailblazer | 15 | 2% | 65,000 mi | |
| 2006 Trailblazer | 49 | 4% | 81,000 mi | |
| 2005 Trailblazer | 51 | 3% | 79,199 mi | |
| 2004 Trailblazer | 62 | 6% | 61,124 mi | |
| 2003 Trailblazer | 103 | 11% | 74,961 mi | |
| 2002 Trailblazer | 310 | 27% | 66,500 mi | |
| 2001 Trailblazer | 5 | 25% | — | |
| 2000 Trailblazer | 5 | 19% | — |
Share is the fraction of that year’s complaints naming the power train. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.