PARKING SUPPORT DEVICE AND MOBILE TERMINAL

A parking ECU performs parking support control including power-off control for automatically switching a power supply of a vehicle from an ON state to an OFF state when an arrival condition that the vehicle arrives at a target parking position is satisfied, and performs abnormality notification for notifying a user of the vehicle that a power-off abnormality in which the power supply is not switched to the OFF state has occurred when the parking ECU is not switched to a non-operating state in a period from starting of the power-off control to elapse of a predetermined power-off delay time.