TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INHIBITOR SWITCH REPLACEMENT (SA317B/C) - This bulletin has been revised to include additional information. This bulletin provides the procedure to replace the inhibitor switch on some 2017MY Optima (JFa), Sorento (UMa), Optima Hybrid (HEV), Optima Plug-in Hybrid (PHEV), Sportage (QL), Forte (YD), and Sedona (YP), and some 2016-2017MY Optima (JF) vehicles, equipped with a front wheel drive 6-speed transmission, which may experience the concerns listed in this bulletin. These concerns may be due to the inhibitor switch not allowing the correct gear position signal to be sent to various control units.
