2005 Mercury Montego Keyless Entry Remote Fob Smart Key Programming Instructions
1. Turn ignition from OFF to RUN 8 times within 10 seconds, with the 8th time ending in RUN. Door locks will cycle to confirm programming mode.
2. Within 20 seconds press any button on first keyless remote. Door locks will cycle to confirm programming.
3. Within 20 seconds, press any button on second keyless remote. Door locks will cycle again to confirm programming.
4. Turn ignition to OFF. Locks will again cycle to indicate end of programming mode.
Now that you have programmed your keyless remote.
Click below for instructions to program an ignition key.