In a vehicle control system that controls a platoon travel in which a plurality of vehicles travel in a platoon, the plurality of vehicles include a leading vehicle that is an autonomous driving vehicle and a following vehicle that follows immediately after the leading vehicle or follows the leading vehicle via one or more vehicles, and the following vehicle is permitted to park in a parking frame that exists in a range of detection performed by an external sensor mounted on the leading vehicle and configured to detect a surrounding environment of the leading vehicle.