The controller detects an operation determined according to a detection result from a handle sensor that detects at least one of contact by, or the approach of, a hand of an operator. The controller performs control so as to actuate a door lock actuation section and unlock the door lock in cases in which the door lock is in a locked state, a pre-registered electronic key has been authenticated by an authentication section, and a predetermined first operation has been detected. The controller performs control so as to actuate a door latch actuation section and release the door latch in cases in which the door lock is in an unlocked state and a predetermined second operation has been detected.