• Unhook a battery terminal and hook it back up again. It will revert to the factory code.
  • Your local FORD® dealership should be able to give you that information, free, over the telephone. Call their service department and ask them. +5
  • I purchased a 2004 Expedition for my wife. I have seen the answer for unhooking the battery to reset the keyless entry code back to the factory code. If this works then my question would be, What is the factory code to use ? if anyone has an answer I would really greatly appreciate it !!!.

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