1997 Cadillac Seville Owner's Manual - Page 64

The square key is for the ignition only. It has a resistor pellet which is part of the vehicle's PASS-Key% system. 7 When a new Cadillac is delivered, the dealer removes the plug from the doorkey. The plug has a code on it that tells the dealer or a qualified locksmith how to make extra keys. The ignition key has a bar code tag attached to it rather than a knock out plug. Your dealer os qualified locksmith can make extra ignition keys by reading the bar code tag. Keep the bar code tag and the door key plugs in a safe place. If you lose your keys, you will be able to have new ones made using the plug or bar code tag. NOTICE: The oval key is for the doors and all other locks. ' Your Cadillac lias a number of new features that can help prevent theft. You can havea lot of trouble getting into your vehicle if you ever lock your keys inside and you may have to damage your vehicle to get Be sure you in. have extra keys. 2-3