2008 Lexus IS F Owners Manual - Page 174

2-1. Driving procedures n Downshift restrictions warning buzzer To help ensure safety and driving performance, downshifting operation may sometimes be restricted. In some circumstances, downshifting may not be possible even when the shift lever or paddle shift switch is operated. (A buzzer will sound twice.) n When driving with the cruise control or dynamic radar cruise control Engine braking will not occur during shift range selection in the D position, even when downshifting to range 7, 6, 5 or 4. (→P. 147, 150) n Automatic deactivation of snow mode and "Sport" mode If the "ENGINE START STOP" switch is turned OFF after driving in either snow mode or "Sport" mode, the mode is automatically deactivated. n If the shift lever cannot be shifted from P →P. 384 n If is not displayed after shifting the shift lever to M transmission will not go into M mode if the shift lever is moved to the M position. This is because a system check is being performed. In this case, wait a moment and then try moving the shift lever to the M position again. l Within a few seconds of turning the "ENGINE START STOP" switch to ON, the l If the display does not change to on an occasion other than that described above, it may indicate a malfunction in the automatic transmission system. Have your vehicle inspected by your Lexus dealer immediately. 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. 124