A vehicle security system for cooperating with a communications network includes a plurality of communication nodes in which a given communication node may transmit an acknowledgment message to an adjacent wireless transceiver upon receipt of a message therefrom. The vehicle security system may include a wireless transceiver and a security controller at the vehicle. The security controller may transmit a message related to vehicle security via the wireless transceiver. The security controller may retransmit the message related to vehicle security if the wireless transceiver does not receive an acknowledgment message from an adjacent communication node. The security controller may not retransmit the message related to vehicle security if the wireless transceiver does receive an acknowledgment message from the adjacent communication node.