2007 Toyota Corolla Owners Manual - Page 24

'07 Corolla_U (L/O 0608) Engine immobilizer system 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 writing down the key number and storing it in a safe place. The engine immobilizer system is a theft prevention system. When you insert the key in the ignition switch, the transponder chip in the key's head transmits an electronic code to the vehicle. The engine will start only when the electronic code in the chip corresponds to the registered ID code for the vehicle. Without Toyota vehicle intrusion protection system With Toyota vehicle intrusion protection system 12 2007MY COROLLA from Oct. '06 Prod. (OM12B32U)