2011 Lexus IS F Owners Manual - Page 140

2-1. Driving procedures n Automatic gear selection when the vehicle is stopped l When the vehicle comes to a stop, the transmission will automatically downshift to allow you to start off in 1st gear. l When the vehicle is idling at high rpm in order to warm up, and the vehicle is on a slippery road, the transmission will automatically shift to 2nd gear for stopping and starting off. n If the automatic transmission fluid temperature warning message is displayed If the automatic transmission fluid temperature warning message is displayed while driving, make sure you return to normal D position driving and reduce speed by easing off the accelerator pedal. Stop the vehicle in a safe place, shift the shift lever to the P position and let the engine idle until the warning message goes out. When the warning message goes out, the vehicle can be driven again. If the warning message does not go out after waiting a while, have your vehicle inspected by your Lexus dealer. n AI-SHIFT The AI-SHIFT automatically selects the optimal gear according to driver performance and driving conditions. The AI-SHIFT automatically operates when the shift lever is in the D position. However, operating the "-" paddle shift switch will restrict the function's operation. (Shifting the shift lever to the M position cancels the function.) The engine speed may stay high while depressing the accelerator pedal and may remain high after releasing the accelerator pedal. This dose not indicate a malfunction. CAUTION n When driving on slippery road surfaces Be careful of downshifting and sudden acceleration, as this could result in the vehicle skidding to the side or spinning. 142