Ford 2003 Crown Victoria Owner's Manual page 105

Locks and Security
1. Insert the first previously
programmed coded key into the
4
ignition and turn the ignition from 3
3
(OFF) to 4 (ON) (maintain ignition
5
in 4 (ON) for at least one second).
2. Turn ignition to 3 (OFF) then 2
2
(LOCK) and remove the first coded
key from the ignition.
1
3. Within ten seconds of removing
the first coded key, insert the
second previously programmed coded key into the ignition and turn the
ignition from 3 (OFF) to 4 (ON) (maintain ignition in 4 (ON) for at least
one second but no more than ten seconds).
4. Turn the ignition to 3 (OFF) then 2 (LOCK) and remove the second
coded key from the ignition.
5. Within twenty seconds of removing the second coded key, insert the
new unprogrammed key (new key) into the ignition and turn the ignition
from 3 (OFF) to 4 (ON) (maintain ignition in 4 (ON) for at least one
second). This step will program your new key.
6. To program additional new unprogrammed key(s), repeat this
procedure from step 1.
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. You may repeat steps 1
through 6. If failure repeats, bring your vehicle to your dealership to
have the new spare key(s) programmed.
105
2003 Crown Victoria (cro)
Owners Guide (post-2002-fmt)
USA English (fus)