Summary
This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles.
The affected vehicles may exhibit the illumination of MIL with specific DTC(s) and a lack of acceleration or delay in accelerating due to transmission slippage.
Affected Models
2019-2020 Forte (BDm), 2020-2021 Soul (SK3), and 2021 Seltos (SP2)
Procedure
Apply the improved software logic to the CVT system using the KDS ECU Upgrade function and, if necessary, replace the IVT assembly.
Verify the ROM ID using the table on page 4 to confirm the latest reflash has been applied to the vehicle.
Manual:
Download: 2019-2021 KIA Multiple Models IVT Software Logic Improvement and Replacement (SC199)
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