1. Enter programming mode. Insert the key into the ignition and turn it to the "On" position, but do not start the engine. Within 10 seconds, turn the key to the "Off" position and remove it from the ignition. Do this three times within a 10-second time span. On the third time, leave the key in the "On" position.
2. Press the remote buttons. Within 30 seconds, press the "Lock" and "Unlock" buttons on the first remote you want to program. You will hear a chime to confirm that the remote has been programmed.
3. Repeat step 2 for each additional remote. You can program up to four remotes to your 1997 Ford Explorer.
4. Exit programming mode. Turn the ignition to the "Off" position. The door locks will cycle to confirm that programming mode has been exited.
