Ford 2009 Mountaineer Owner's Manual page 579

Locks and Security
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.
4. After three seconds but within
ten seconds of turning the ignition
to the 1 (off) position, insert the second previously coded key into the
ignition.
5. 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.
6. Turn the ignition to the 1 (off) position and remove the second
previously programmed coded key from the ignition.
7. After three seconds but within twenty seconds of turning the ignition
to the 1 (off) position and removing the previously programmed coded
key, insert the new unprogrammed key (new key/valet key) into the
ignition.
8. 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 not
more than 10 seconds.
9. Remove the newly programmed coded key from the ignition.
If the key has been successfully programmed it will start the vehicle's
engine and the theft indicator light will illuminate for three seconds and
then go out.
If the key was not successfully programmed, it will not start your
vehicle's engine and the theft indicator light will flash on and off, and
you may repeat Steps 1 through 5. If failure repeats, bring your vehicle
to your authorized dealer to have the new key(s) programmed.
To program additional new unprogrammed key(s), wait twenty seconds
and then repeat this procedure from Step 1.
155
2009 Mountaineer (mnt)
Owners Guide, 2nd Printing
USA (fus)