2012 Lexus IS 350 User Guide - Page 494

5-2. Steps to take in an emergency If the electronic key does not operate properly If communication between the electronic key and vehicle is interrupted (→P. 37) or the electronic key cannot be used because the battery is depleted, the smart access system with push-button start and wireless remote control cannot be used. In such cases, the doors and trunk can be opened or the engine can be started by following the procedure below. Locking and unlocking the doors, unlocking the trunk and key linked functions Use the mechanical key built in to the electronic keys to operate the doors. (→P. 29) Doors STEP 1 Remove the cover on the driver's door handle. 5 STEP 2 Locks all the doors Closes the windows and moon roof (turn and hold) Unlocks the door Turning the key rearward unlocks the driver's door. Turning the key once again unlocks the other doors. When trouble arises Opens the windows and moon roof (turn and hold) 505