2009 Lexus GS 350 Owners Manual - Page 203
2009 Lexus GS 350 Manual
Page 203 highlights
2-1. Driving procedures n If the indicator does not come on even after shifting the shift lever to "S" This may indicate a malfunction in the automatic transmission. Have the vehicle inspected by your Lexus dealer immediately. (In this situation, the vehicle will operate as if the shift lever is in "D".) n AI-SHIFT The AI-SHIFT automatically shifts the gear to the optimal position according to the driver's input and driving conditions. GS460: The AI-SHIFT automatically operates when the shift lever is in the "D" or "S" position. GS350: The AI-SHIFT automatically operates when the shift lever is in the "D" position. (Shifting the shift lever to the "S" position cancels the function.) 2 When driving 141 GS_G_U (OM30B43U) March 8, 2010 10:20 am