Getting-off assistance device for a vehicle

A getting-off assistance device for a vehicle that includes a surrounding information acquisition device that acquires information about surroundings of an own vehicle, a notification device that notifies an alert to an occupant or occupants of the own vehicle, an open-door detection device that detects opening of a door, and an electronic control unit that controls the notification device, and the electronic control unit is configured to start notification of the alert by the notification device when it is determined that it is dangerous for the occupant or occupants to get off the vehicle based on the information acquired by the surrounding information acquisition device in a situation where the open-door detection device detects that a door is open, and end the notification of the alert by the notification device when it is determined that it is no longer dangerous for the occupant or occupants to get off the vehicle based on the information acquired by the surrounding information acquisition device, wherein

• the electronic control unit is further configured to change the alert notified by the notification device so as to reduce annoyance of the alert given to the occupant or occupants when a number of times of the alerts notified by the notification device during a situation where the door is open after the door is finally opened is equal to or greater than a reference number of times, and
• the electronic control unit is further configured to terminate the notification of the alert by the notification device and reset the number of times of the alerts to zero when the door-open detection device detects that the door has been closed.