FORD 2010 E-450 v.2 - Manual (Page 84)

2. Turn ignition from the 4 (on) position back to the 3 (off) position in
order to remove the first coded key from the ignition.
3. After three seconds but within 10 seconds of removing the first coded
key, insert the second previously programmed coded key into the
ignition and turn the ignition from the 3 (off) position to the 4 (on)
position (maintain ignition in the 4 (on) position for at least one second
but no more than 10 seconds).
4. Turn the ignition from the 4 (on) position back to the 3 (off) position
in order to remove the second coded key from the ignition.
5. After three seconds but within 10 seconds of removing the second
coded key, insert the new unprogrammed key (new key/valet key) into
the ignition and turn the ignition from the 3 (off) position to the 4 (on)
position (maintain ignition in the 4 (on) position for at least one second,
but no more than 10 seconds). This step will program your new key to a
coded key.
6. To program additional new unprogrammed key(s), repeat Steps 1
through 5.
If successful, the new coded key(s) will start the vehicle’s engine and the
theft indicator will illuminate for three seconds and then go out.
If not successful, the new coded key(s) will not start the vehicle’s engine
and the theft indicator 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 spare key(s) programmed.
Locks and Security
84
2010 Econoline (eco)
Owners Guide, 2nd Printing
USA (fus)