A vehicle input device comprises an operation detection section configured to detect input to an onboard unit allocated to one operation section of plural of operation sections provided in a vicinity of a driving seat due to the one operation section being operated, a preliminary action detection section configured to detect a preliminary action directly prior to the one operation section being operated, and a notification section configured to notify an occupant of information relating to the onboard unit allocated to the one operation section in a case in which the preliminary action has been detected by the preliminary action detection section.