DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Engine Control Module,...
Hyundai technical service bulletin 26-EM-003H TSB for 2020-2023 Hyundai Sonata.
- Bulletin number
- 26-EM-003H TSB
- Component
- Engine
- Summary
- Some Sonata (DN8, DN8A) vehicles may have DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Engine Control Module, resulting in an illuminated Check Engine warning lamp. Follow the procedure in this TSB to replace the Integrated Thermal Management (ITM) module and update both the Engine Control Module (ECM) and Transmission Control Module (TCM) if applicable. Follow the flowchart in this TSB to update the appropriate modules.
Owners of these vehicles have filed 122 complaints in the engine category.
Vehicles covered
- Hyundai Sonata 2020-2023 2020202120222023
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