2007 Lexus IS 250 Owners Manual - Page 112

2-1. Driving procedures n If the engine does not start The engine immobilizer system may not have been deactivated. (→P. 54) n When the engine switch indicator flashes in amber The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer immediately. n Auto power OFF function The engine switch will automatically turn OFF when left in ACC mode for 1 hour or more. n Electronic key battery depletion 2 When driving →P. 10 n When the electronic key battery is discharged →P. 302 n Conditions affecting operation →P. 8 n Note for the entry function →P. 11 CAUTION n When starting the engine Always start the engine while sitting in the driver's seat. Do not press the accelerator while starting the engine under any circumstances. Doing so may cause an accident resulting in death or serious injury. n Caution when driving Do not touch the engine switch while driving. Pressing and holding the engine switch will stop the engine, which may lead to an unexpected accident. 99