On my Ford Fusion, it apparently has a passive RFID chip in the key fob in case the battery dies, and the reader is in the bottom of the cup holder. And a hidd

On my Ford Fusion, it apparently has a passive RFID chip in the key fob in case the battery dies, and the reader is in the bottom of the cup holder. And a hidden key inside the fob, that you can use to pry off a plastic shroud on the door handle to get access to a hidden cylinder lock on the door.