TSB - SERVICE ACTION: 2.0T FAST STATIC GEAR SHIFT LOGIC IMPROVEMENT (SA341) - This bulletin provides the procedure to improve the logic of the Transmission Control Unit (TCU) on some 2018MY Stinger (CK) 2.0T vehicles, produced from September 29, 2017 through February 7, 2018. These vehicles may experience improper 1st gear engagement when moving the shifter in a fast or abrupt manner from ?Park? to ?Drive? while in Sports Mode.