Reprogramming Remote Keyless Entry Transmitters

Whether you lost a transmitter and bought a replacement or you want to have an additional one (you may have up to 4), here are the directions* to reprogram your transmitters.

Reprogramming transmitters

To reprogram all transmitters, place the key in the ignition and switch
from OFF to ON eight times in a row (within 10 seconds). After doors
lock/unlock, press any button on all transmitters (up to four). When
completed, switch the ignition to OFF.

All transmitters must be reprogrammed at the same time.

*Directions taken from the 1998 Ford Explorer Owner's Guide, page 63