Chevrolet Trailblazer engine and engine cooling problems by year
353 NHTSA owner complaints name the engine and engine cooling across 12 Trailblazer model years. The most reported year is 2002 with 143 reports.
| Year | Engine and Engine Cooling reports | Share | Median mileage | |
|---|---|---|---|---|
| 2023 Trailblazer | 3 | 5% | — | |
| 2022 Trailblazer | 2 | 2% | — | |
| 2021 Trailblazer | 2 | 1% | — | |
| 2008 Trailblazer | 12 | 6% | — | |
| 2007 Trailblazer | 12 | 2% | — | |
| 2006 Trailblazer | 24 | 2% | 56,000 mi | |
| 2005 Trailblazer | 44 | 3% | 56,500 mi | |
| 2004 Trailblazer | 39 | 4% | 39,750 mi | |
| 2003 Trailblazer | 65 | 7% | 50,080 mi | |
| 2002 Trailblazer | 143 | 12% | 55,850 mi | |
| 2001 Trailblazer | 5 | 25% | — | |
| 2000 Trailblazer | 2 | 8% | — |
Share is the fraction of that year’s complaints naming the engine and engine cooling. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.