2003 Chevrolet Trailblazer check engine light reports
34 NHTSA complaints describe persistent or recurring check-engine warnings on the 2003 Chevrolet Trailblazer — roughly 4% of all complaints for this model year.
34
Check engine light reports
4%
share of complaints
74,250 mi
median mileage in check engine light reports (30 with odometer)
Components reported on this vehicle
Check engine light in other Trailblazer years
| 2023 Trailblazer | 6 |
| 2022 Trailblazer | 7 |
| 2021 Trailblazer | 19 |
| 2008 Trailblazer | 6 |
| 2007 Trailblazer | 45 |
| 2006 Trailblazer | 110 |
| 2005 Trailblazer | 35 |
| 2004 Trailblazer | 48 |
| 2002 Trailblazer | 15 |
Other symptoms owners describe on the 2003 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 2003 Chevrolet Trailblazer report before drawing conclusions.