1999 Toyota Sienna Owners Manual - Page 10

name. SIENNA (45403U) Keys (with engine immobiliser system) To protect things locked in the glove box when you have your vehicle parked, leave the sub key with the attendant. Since the side door can be locked without a key, you should always carry a spare master key in case you accidentally lock your keys inside the vehicle. KEY NUMBER PLATE Your key number is shown on the plate. Keep the plate in a safe place such as your wallet, not in the vehicle. If you should lose your keys or if you need additional keys, duplicates can be made by a Toyota dealer using the key number. We recommend you to write down the key number and keep it in safe place. Your vehicle is supplied with the two kinds of key. 1. Master key (black)-This key works in every lock. Your Toyota dealer will need it to make you a new key with built −in transponder chip. 2. Sub key (gray)-This key will not work in the glove box. The master key and sub key each have a transponder chip in their key head which is very important for the system function, so be careful not to lose these keys. If you make your own duplicate key, you will not be able to cancel the system or start the engine. 10