2003 Chevrolet Trailblazer Ext check engine light reports
15 NHTSA complaints describe persistent or recurring check-engine warnings on the 2003 Chevrolet Trailblazer Ext — roughly 5% of all complaints for this model year.
15
Check engine light reports
5%
share of complaints
76,000 mi
median mileage in check engine light reports (11 with odometer)
Components reported on this vehicle
Check engine light in other Trailblazer Ext years
| 2006 Trailblazer Ext | 18 |
| 2004 Trailblazer Ext | 9 |
| 2002 Trailblazer Ext | 6 |
Other symptoms owners describe on the 2003 Chevrolet Trailblazer Ext
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 Ext report before drawing conclusions.