This bulletin provides information related to an Electronic Control Module (ECM) software update which...
Hyundai technical service bulletin 21-01-051H for 2020-2021 Hyundai Sonata.
- Bulletin number
- 21-01-051H
- Component
- Engine and engine cooling
- Summary
- This bulletin provides information related to an Electronic Control Module (ECM) software update which revises the OBD Air Fuel Ratio Imbalance (AFRI) monitor function frequency and cylinder imbalance diagnosis logic.
Owners of these vehicles have filed 67 complaints in the engine category.
Vehicles covered
- Hyundai Sonata 2020-2021 20202021
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