This bulletin provides information related to the Engine Control Module (ECM) and Electronic Stability Control (ESC) software updates for certain 2019MY Santa Fe (TM) equipped with 2.4L engine. The ECM update is revised for starting performance and Idle Stop & Go (ISG) control logic. In addition, the ESC update is revised for hold timing of Hill-start Assist Control (HAC) function to optimized ISG operation.
