Hyundai: automatic transaxle ECM and TCM update. provides a procedure to update the ECM and TCM software...
Hyundai technical service bulletin TSB-10-01-023 for 2009-2010 Hyundai Sonata.
- Bulletin number
- TSB-10-01-023
- Component
- Engine and engine cooling: engine
- Summary
- Hyundai: automatic transaxle ECM and TCM update. Provides a procedure to update the ECM and TCM software to the most recent versions to revise-acceleration feel from a stop or below 15mph; shift quality when decelerating to a stop at about 30mph when the atf is cold.
Owners of these vehicles have filed 91 complaints in the engine category.
Vehicles covered
- Hyundai Sonata 2009-2010 20092010
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