TSB - SERVICE ACTION: 2.4L ENGINE START LOGIC IMPROVEMENT (SA316C) REV 1 - This bulletin provides the procedure to improve the logic of the Engine Control Unit (ECU) on some 2018MY Sorento (UMa) 2.4L vehicles, produced from March 31, 2017 through November 16, 2017, which may experience a very slight surging sensation with the cruise control activated.
