2021 Chevrolet Trailblazer check engine light reports
19 NHTSA complaints describe persistent or recurring check-engine warnings on the 2021 Chevrolet Trailblazer — roughly 10% of all complaints for this model year.
19
Check engine light reports
10%
share of complaints
22,260 mi
median reported incident mileage (all complaints)
Components reported on this vehicle
Check engine light in other Trailblazer years
| 2023 Trailblazer | 6 |
| 2022 Trailblazer | 7 |
| 2008 Trailblazer | 6 |
| 2007 Trailblazer | 45 |
| 2006 Trailblazer | 110 |
| 2005 Trailblazer | 35 |
| 2004 Trailblazer | 48 |
| 2003 Trailblazer | 34 |
| 2002 Trailblazer | 15 |
Other symptoms owners describe on the 2021 Chevrolet Trailblazer
Symptom counts come from keyword analysis of complaint narratives. One complaint can describe several symptoms, and classification is approximate — read the underlying reports on the full 2021 Chevrolet Trailblazer report before drawing conclusions.