TSB: SERVICE ACTION: 3.3L GDI 8AT TCU LOGIC IMPROVEMENT FOR DTC P0741(SA387) - This bulletin has been revised to include additional information. This bulletin provides the procedure to improve the logic of the Transmission Control Unit (TCU) software on some 2019MY Sorento (UMa) vehicles produced from January 24, 2018 through March 26, 2019, and Sedona (YP) produced from February 14, 2018 through October 15, 2018, which may experience a malfunction indicator lamp (MIL) ON with DTC P0741.
