1997 Lincoln Mark VIII Owner's Manual - Page 126

To program your own code: 1. 2. 3. 4. Select five digits for your personal code. Enter the factory code that the dealership gave you. Within five (5) seconds, press 1/2. Within five (5) seconds of pressing 1/2, enter your personal code, pressing each digit within five (5) seconds of the previous digit. The keyless entry system registers this second code. To open your vehicle, you can now use either code. The module remembers only one personal code at a time. Entering a second personal code will erase the first, replacing it with the new second one. To erase your personal code: 1. 2. 3. Enter the original permanent code. Press 1/2 within five seconds of Step 1. Wait six seconds. The keyless entry system automatically erases your personal code. The system will now only respond to the permanent code. Do not set a code that presents the numbers in sequential order, such as 1/2, 3/4, 5/6, 7/8, 9/0. Studies show that people who idly press the buttons usually press a sequential pattern. Also, do not select a code that uses the same button five times. Thieves can easily figure out these types of codes. 121