1999 Toyota 4Runner Owners Manual - Page 10

4RUNNER ( ) 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 doors can be locked without a key, you should always carry a spare master key in case you accidentally lock your keys inside the vehicle. For information on use of the wireless remote control key, see "Side doors" in this chapter. 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 does 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. NOTICE When using a key containing a transponder chip, observe the following precautions: z When starting the engine, do not use the key with a key ring resting on the key grip and do not press the key ring against the key grip. Otherwise the engine may not start, or may stop soon after it starts. 10