Programming Spare Keys - Ford 2001 Windstar Owner's Manual

If an unprogrammed key is used in the ignition it will cause a
"NO START" condition.

Programming spare keys

A maximum of eight keys can be coded to your vehicle. Only
SecuriLock keys can be used. To program a coded key yourself, you
will need two previously programmed coded keys (keys that already
operate your vehicle's engine) and the new unprogrammed key(s) readily
accessible for timely implementation of each step in the procedure.
If two previously programmed coded keys are not available (one or both
of your original keys were lost or stolen), you must bring your vehicle to
your dealership to have the spare coded key(s) programmed.
Please read and understand the entire procedure before you begin.
1. Insert the first 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).
2. Turn ignition to 3 (OFF) then 2
(LOCK) and remove the first coded
key from the ignition.
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 20 seconds of removing the second coded key, insert the new
unprogrammed key (new key/valet 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 to a coded 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.
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