2005 Toyota Prius Owners Manual - Page 32

Carrying a smart key and pressing the "POWER" switch automatically cancels the system, which enables the hybrid system to start. The indicator light will go off. For your Toyota dealer to make you a new key with built −in transponder chip, your dealer will need your key number and master key. However, there is a limit to the number of additional keys your Toyota dealer can make for you. 21p006a 21p007b NOTICE Do not modify, remove or disassemble the hybrid vehicle immobilizer system. If any unauthorized changes or modifications are made, proper operation of the system cannot be guaranteed. DEACTIVATION USING THE KEY The hybrid vehicle immobilizer system is a theft prevention system. When you insert the key in the key slot, the transponder chip in the key transmits an electronic code to the vehicle. The hybrid system will start only when the electronic code in the chip corresponds to the registered ID code for the vehicle. The system is automatically set when the key is removed from the key slot. The indicator light will start flashing to show the system is set. If any of the following indicator conditions occurs, contact your Toyota dealer. D The indicator light stays on except when the theft deterrent system is setting or activating. (See "Theft deterrent system" on page 45.) D The indicator light does not start flashing when the key is removed from the key slot. D The indicator light flashes inconsistently. 22