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Unread 09-27-2010   #1 (permalink)
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Default 2003 Mustang GT Keyless Entry

I bought a 2003 gt this weekend and it only came with one key. my older brother said we could test his remote from his f250, it worked which was great but than when he reprogrammed it to his truck and locked it, and turned the alarm on it did it to my mustang too. Anyone know how to un-program his remote from my car??
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Unread 09-27-2010   #2 (permalink)
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Quote:
Originally Posted by godawgs8 View Post
I bought a 2003 gt this weekend and it only came with one key. my older brother said we could test his remote from his f250, it worked which was great but than when he reprogrammed it to his truck and locked it, and turned the alarm on it did it to my mustang too. Anyone know how to un-program his remote from my car??
Perform the programing steps with a different FOB. It will forget any other FOB's. That is why if you want to add a FOB, the old FOBs have to be available as well.

Suggestion. If you have only one key, have an additional key made. A cheap copy will not be able to start the car, but it could be used to open an accidently locked door. It can also be used to cut a replacement key if the chip key is lost.

Also, it is possible to get a "cloned" chip key. Some Walmarts have the system that can copy a key and clone the chip.
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Unread 09-28-2010   #3 (permalink)
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Until you get a new pad, i would try disconnecting the battery for a minute and resetting the whole cpu. I dont know if that would work, but id sure give it a try.
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Unread 09-28-2010   #4 (permalink)
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you can just get a brand new on on ebay for roughly 20 dollers shipped. i have done this works to this day.
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Unread 09-28-2010   #5 (permalink)
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yeah i bought mine on ebay for $15 shipped. unplugging the battery won't have it forget the fob unfortunately. weird that you can program 2 cars with the same fob.
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Unread 09-28-2010   #6 (permalink)
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Thanks for all the suggestions, i "borrowed" the remote from my dads explorer that isnt working and ordered another one off of ebay last night ill try everything and let u guys know if it works

Thanks again!
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Unread 10-02-2010   #7 (permalink)
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nothing worked but the new key remote came in today and i programmed it in about 10 seconds!! it works perfectly and was only like 12 dollars on ebay
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Unread 10-02-2010   #8 (permalink)
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Originally Posted by godawgs8 View Post
nothing worked but the new key remote came in today and i programmed it in about 10 seconds!! it works perfectly and was only like 12 dollars on ebay
Excellent!
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