Abstract: A vehicle control system includes a controller configured to be operably deployed onboard a first propulsion-generating vehicle of a multi-vehicle system, and a wireless communication unit configured to be electrically coupled to the controller. The controller is configured to control the wireless communication unit to wirelessly communicate first vehicle control signals to a second propulsion-generating vehicle of the multi-vehicle system that is immediately adjacent and mechanically coupled to the first propulsion-generating vehicle, while the first propulsion-generating vehicle and the second propulsion-generating vehicle are in a non-cable-connected state.