Ford Expedition Owner's Manual page 132

Locks and Security
Replacing coded keys can be very costly and you may want to store an
extra programmed key away from the vehicle in a safe place to prevent
an unforeseen inconvenience.
The correct coded key must be used for your vehicle. The use of the
wrong type of coded key may lead to a "no start" condition.
If an unprogrammed key is used in the ignition it will cause a "no
start" condition.
Programming spare keys
You can program your own integrated keyhead transmitters or standard
SecuriLock coded keys to your vehicle. This procedure will program
both the engine immobilizer keycode and the remote entry transmitter
portion of the IKT to your vehicle. Note: A maximum of eight coded
keys can be programmed to your vehicle; only four of these eight can be
IKTs with remote entry functionality.
Tips:
• Only use integrated keyhead transmitters (IKTs) or standard
SecuriLock keys.
• You must have two previously programmed coded keys (keys that
already operate your vehicle's engine) and the new unprogrammed
key(s) readily accessible.
• If two previously programmed coded keys are not available, you must
take your vehicle to your authorized dealer to have the spare key(s)
programmed.
Please read and understand the
entire procedure before you begin.
1. Insert the first previously
programmed coded key into the
ignition.
2. Turn the ignition from the 1 (off)
position to the 3 (on) position. Keep
the ignition in the 3 (on) position
for at least three seconds, but no
more than 10 seconds.
3. Turn the ignition to the 1 (off) position and remove the first coded
key from the ignition.
132
2012 Expedition (exd)
Owners Guide, 1st Printing
USA (fus)