1996 - 1998 Ford, Lincoln, Mercury Key Programming Instructions (Select Models)

Instructions for Models: 1996 Ford Mustang, 1997-1998 Ford Expedition, 1998 Lincoln Navigator, 1997 Mercury Mystique, & 1997 Mercury Sable.

NOTE: If you have no existing, programmed, and cut keys for your vehicle you must have your key originated by a locksmith or dealership and cut for your vehicle prior to using these programming steps.

1. Insert the new key into the ignition and turn it to the on position (as far as you can go without cranking the engine).
2. The security light on the dash will flash for fifteen minutes.
3. When the security light stops flashing, turn the ignition off and then back to the on position.
4. The security light will flash for fifteen more minutes.
5. When the security light stops flashing, turn the ignition off and then back to the on position.
6. The security light will flash for fifteen more minutes.
7. After the security light stops flashing the third time, turn the key to the off position.
8. Turn the key to the on position and the security light should stop flashing indicating the new key has been programmed.
9. Start vehicle to test key.

NOTE: If you already have at least one existing cut and programmed key and wish to program additional keys to your vehicle you can follow the instructions below.

1. Insert the existing working key in the ignition and turn to the on position until the security light goes out on the dash then back to the off position.
2. Within five seconds insert the new key in the ignition and turn to the on position.
3. The security light will light up for 2 seconds to indicate successful programming.
4. Turn the key to the off position.
5. Start vehicle to test new key.