You have to have the mustang at the Ford dealership to be hooked up to their equipment and they will reprogram you mustang computer with the encoded PATS key. If you had a mustang that was 1996-98 you could just order the encoded key and do it yourself in about 45 minutes. But because of the anti-theft chip placed in these keys by ford, late 1998 and newer have to be reprogrammed at the dealer. Sorry for the bad news!
Ebay sales them but then after you get the replacement you may have to have a Ford dealer program it to work with the ignition switch.
the dealer should be able to cut a new key using the vin number
how do i get a replacement key for a 2001 chevy cavalier
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how much and were do you get a replacement key for a ford tarus 2003 it was the only key i had that got lost
Not from the factory
Its a programmable chip inside of the key .
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The lock went bad. Call a locksmith and get a replacement installed.