Service Update
Chevrolet technical service bulletin A202321990 for 2019-2021 Chevrolet Malibu, 2021 Chevrolet Trailblazer and 2021 Chevrolet Camaro and others.
- Bulletin number
- A202321990
- Component
- Equipment
- Summary
- Service Update. Certain vehicles may have engine control module software that leads to erroneous additional fuel enrichment under rare driving conditions. Dealers are to reprogram the engine control module.
Vehicles covered
- Chevrolet Malibu 2019-2021 201920202021
- Chevrolet Trailblazer 2021 2021
- Chevrolet Camaro 2021 2021
- Buick Encore GX 2020-2021 20202021
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