The ignition key requires programming and you will need 2 at a minimum. The code from the PATS (Passive AntiTheftSystem) key is stored in the HEC (HybridElectronicCluster). Only dealership techs can access the parameters to reset the key code configuration this to help prevent theft of vehicle without a proper key. What is involved is called security access; which takes 10 minutes. Then the old code is erased and then a minimum of two keys get programed, it takes about half an hour total service time. An alternative is if the old HEC is still functional the dealership can take the information from the old HEC store it in a machine called WDS(WorldwideDiagnosticSystem) then install the new HEC and transfer the info. In either case only a trip to a Ford or Lincoln dealership will get the job done.
