A vehicle control system includes a controller and a first fob, wherein the controller is configured to control a first communicator of the vehicle to transmit a deactivation signal to the first fob based on the first fob being detected in the vehicle after locking the vehicle, and the first fob that includes a second communicator communicating with the first communicator and is configured to control the second communicator to switch at least one predetermined communication function to an inactive state based on the reception of the deactivation signal.