2021 Chevrolet Blazer check engine light reports
15 NHTSA complaints describe persistent or recurring check-engine warnings on the 2021 Chevrolet Blazer — roughly 12% of all complaints for this model year.
15
Check engine light reports
12%
share of complaints
36,232 mi
median reported incident mileage (all complaints)
Components reported on this vehicle
Check engine light in other Blazer years
| 2022 Blazer | 8 |
| 2020 Blazer | 32 |
| 2019 Blazer | 18 |
| 1999 Blazer | 5 |
| 1997 Blazer | 7 |
Other symptoms owners describe on the 2021 Chevrolet Blazer
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 Blazer report before drawing conclusions.