2010 Lexus IS 250 Owners Manual - Page 125

1-2. Opening, closing and locking the doors and trunk Locking the doors from the outside without a key The door cannot be locked if the "ENGINE START STOP" switch is in ACCESSORY or IGNITION ON mode, or the electronic key is left inside the vehicle. Depending on the position of the electronic key, the key may not be detected correctly and the door may be locked. Automatic door locking and unlocking systems The following functions can be set or cancelled: Function Shift position linked door locking function* Shift position linked door unlocking function* Speed linked door locking function Driver's door linked door unlocking function Operation Shifting the shift lever out of P when the engine is running locks both side doors. Shifting the shift lever to P when the "ENGINE START STOP" switch is in IGNITION ON mode unlocks both side doors. Both side doors are locked when the vehicle speed is approximately 12 mph (20 km/h) or higher. Both side doors are unlocked when the driver's door is opened within 10 seconds after turning the "ENGINE START STOP" switch OFF. *: Vehicles with an automatic transmission only 44