2002 Lexus GS 430 Owners Manual - Page 26

KEYS AND DOORS Flat key Starting the engine using a flat key 11g039c 11g036c As a transponder chip is built in its key case, you can start the engine with this key. The flat key works in every lock. A transponder chip for engine immobiliser system has been filled in the key case of the flat key. This chip is needed to enable the system to function correctly, so be careful not to lose this key. If you make your own duplicate key, you will not be able to cancel the system or start the engine. Insert your key plate in its key case as shown. We recommend that you always carry this with you for emergency use. Do not leave it in your vehicle. 1. Remove the key plate from the key case. 2. Insert the key plate into the ignition switch. The indicator light keeps flashing. 3. Bring the key case closer to the ignition switch within 10 seconds as indicated by the arrow head. The indicator light goes out. This means the engine immobiliser system is automatically canceled. (For details, see "Engine immobiliser system" on page 11.) You can put the key case away then. You cannot cancel the engine immobiliser system if 10 seconds have passed after you inserted the key plate. You need to remove the key plate from the ignition switch and try it again from the step 2. 4. Start the engine within 60 seconds after the security indicator light goes out. You cannot start the engine if 60 seconds have passed after the security indicator went off. You need to remove the key plate from the ignition switch and try it again from the step 2. 9