2007 Toyota Yaris Owners Manual - Page 347

06 12.21 Keys (with engine immobilizer system) Your vehicle is supplied with two kinds of keys. 1. Master keys (black)-These keys work in every lock. Your Toyota dealer will need one of them to make a new key with a built −in transponder chip. 2. Sub key (gray)-This key also works in every lock. A transponder chip for engine immobilizer system has been placed in the head of the master and sub keys. These chips are needed to enable the system to function correctly, 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. Since the side doors and back door can be locked without a key, you should always carry a spare key in case you accidentally lock your keys inside the vehicle. PS12504 PS12505 With wireless remote control (type A) Without wireless remote control US12029 With wireless remote control (type B) 2007 YARIS HATCHBACK from Feb. '07Prod. (OM52754U) 11