2009 Lexus LX 570 Owners Manual - Page 741

Topic 1 Entering and Exiting Theft Deterrent System The theft deterrent system includes the following features to help protect your vehicle from theft. n Immobilizer system The immobilizer system prevents the engine from being started in the event that an attempt is made to start the vehicle using an unregistered key. The security indicator light flashes to indicate that the system is set. n Alarm The system sounds the alarm and flashes light when an attempt to steal the vehicle is detected. To set the alarm: close the side doors, back door and hood, and lock all doors. The indicator light comes on to indicate that the alarm is in its preparation state. When the indicator light begins to flash, the system is armed. To deactivate or stop the alarm: start the engine, or unlock the doors using the entry function or the wireless remote control. n Steering lock The steering lock is engaged when the driver's door is opened with the "ENGINE START STOP" switch OFF. 11 Quick_LX570_U (OM60E01U)