Event-related information is acquired, and a judgment is made as to whether a particular event is detected. When a particular event is detected, direction information indicating a first direction is acquired, and first recognition result information is acquired as to a result of a recognition process as to an object located outside a vehicle. Furthermore, a judgment is made as to whether the first recognition result information includes a result of object recognition in the first direction and as to whether existence of a specific object in the first direction is detected. In a case where it is judged that the first recognition result information indicates that object recognition in the first direction is performed and existence of a specific object in the first direction is not detected, process completion information indicating that the vehicle has performed the recognition process in the first direction is generated and output.