2011 Lexus IS 350 User Guide - Page 29

1-2. Opening, closing and locking the doors and trunk n When the vehicle is not driven for extended periods To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the vehicle. n Security feature If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the anti-theft system automatically locks the vehicle again. n Alarms and warning indicators A combination of exterior and interior alarms as well as warnings displayed on the multi-information display are used to prevent theft of the vehicle and unforeseeable accidents resulting from erroneous operation. Take appropriate measures in response to any warning indications on the multi-information display. (→P. 492) The following table describes circumstances and correction procedures when only alarms are sounded. Alarm Situation Tried to lock the doors using the entry function while the electronic key is still inside the passenger compartment Closed the trunk while the electronic key is still inside and both side doors are locked Correction procedure Retrieve the electronic key from the passenger compartment and lock the doors again. Retrieve the electronic key from the trunk and close the trunk lid. Turn the "ENGINE START STOP" switch OFF and lock the doors again. Exterior alarm sounds once for 2 seconds Tried to exit the vehicle with Exterior alarm the electronic key and lock sounds once for 60 the doors without first turning seconds the "ENGINE START STOP" switch OFF Exterior alarm Tried to lock the vehicle using Close all of the doors sounds once for 10 the entry function while a and lock the doors seconds door is open again. 36