2004 Lexus LS 430 User Guide 2 - Page 35

KEYS AND DOORS ENGINE IMMOBILIZER SYSTEM Deactivation using the smart key system 11G035c 11L222 D Do not bend the key grip or flat key. D Do not cover the key grip or flat key with any material that cuts off electromagnetic waves. D Do not knock the key or flat key hard against other objects. D Do not leave the key or flat key exposed to high temperatures for a long period, such as on the dashboard or hood under direct sunlight. D Do not put the key or flat key in water or wash it in an ultrasonic washer. D Do not use the key or flat key with electromagnetic materials. The engine immobilizer system is a theft prevention system. When you enter the vehicle carrying a smart key and push the ignition switch, the electronic code in the key is automatically checked to determine whether it corresponds to the registered ID code for the vehicle. If the smart indicator light comes on after the ID code verification, you can start the engine. This system is automatically set when the ignition switch is turned to the "LOCK" position. At this time, the security indicator light flashes. When you push the ignition switch, the security indicator light goes out and the system is cancelled automatically, which enables the engine to start. The engine immobilizer system cannot be cancelled if the cancel switch of the smart key system is turned on. For details, see "Deactivating the smart key system" on page 34. 17