A vehicle control system includes, among other things, one or more functional warning units positioned in various positions in a vehicle. A central controller is configured to generate a desired state of the functional warning units and encode the desired state into a packet. Each of multiple remote controllers is functionally connected to at least one of the functional warning units. A functional connection between the central controller and the multiple remote controllers is configured to transmit the encoded packet from the central controller to each of the remote controllers. The remote controllers are configured to parse the desired state of each of the functional warning units in the encoded packet and set the state of each of the functional warning units based on the parsed encoded packet.