TECHNICAL SERVICE BULLETIN: SERVICE ACTION: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SA424) - This bulletin provides the procedure to improve the Transmission Control Module (TCM) logic and if necessary, replace the Intelligent Variable Transmission (IVT) on 2019-2021MY vehicles which may exhibit a MIL with the DTC(s) listed below. To correct this concern, apply the improved logic to the CVT system using the KDS ECU Upgrade function as described in this bulletin and/or replace the IVT assembly.
