Smart Unlock
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The smart unlock feature prevents the doors from locking with the key in the ignition lock cylinder. When the SJB receives a lock command from a door lock control switch only, and the key is in the ignition lock cylinder with one of the front doors open, the SJB commands the doors to lock, then unlock.
The vehicle can still be locked by locking the doors with the push button rods, the door lock cylinder or an RKE command from an integrated key or the keyless entry keypad.