1997 Lincoln Mark VIII Owner's Manual - Page 135

Spare Key Programming Procedure Two electronically coded keys were supplied with your vehicle, use one of these with the procedure below: Repeat until all chosen keys have been coded (max=8). If the key coding failed, the theft indicator will flash and the vehicle cannot be started. One of 3 causes are possible: u Using a coded key that you can start your u engine with, turn the ignition from the ON to the OFF position. Within 15 seconds, insert a new key into the ignition and turn it to ON or START. The vehicle does not have to be started. u The new key was not inserted within 15 seconds or u All 8 key codes have been stored or u The key does not have an electronic code If the key has been coded, the theft indicator will illuminate for two seconds. The key can then be used to start the vehicle. 130