Hello, I am Danny.
Yes, your PATS (Passive Anti-Theft System) has to be reprogrammed to your car with the new keys. If a Ford manufacturers scanner is used it might show which type of communication is missing/needed/lacking. I have attached a picture showing the communication chart. Hope this helps and thanks for using 2CarPros.
Danny-
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Saturday, September 15th, 2018 AT 6:19 PM