1. Get into your vehicle and make sure the engine is off.
2. Insert the original factory key into the ignition and turn it to the "On" position.
3. Wait for 10 seconds, then turn the key back to the "Off" position.
4. Repeat steps 2 and 3 two more times.
5. On the fourth time, leave the key in the "On" position.
6. Within 10 seconds, use the spare key to open and close the driver's side door three times.
7. Turn the ignition key to the "Off" position and remove it from the ignition.
8. The spare key should now be programmed.
Here are some additional tips:
* Make sure that you are using the original factory key and not a copy.
* If you have more than two keys for your vehicle, you will need to program each key separately.
* If you have any problems programming the keys, you can contact a Ford dealer for assistance.
