Abstract: A child vehicle occupancy warning system includes comprising a pressure sensor for detecting a weight being positioned on a child car seat. A transmitter is electrically coupled to the pressure sensor. A key fob includes a fob housing, a fob processor, and a fob transceiver. A base unit is positioned on a dashboard of a vehicle and includes a base housing, a base processor mounted in the base housing and a base transceiver for receiving wireless signals from the transmitter and sending and receiving signals with the fob transceiver. The base processor determines when the fob transceiver is beyond a predetermined distance from the base unit. A warning light emitter is electrically coupled to the base transceiver. The base processor turns on the warning light emitter when a weight detection signal is received by the base transceiver and the fob transceiver is beyond the predetermined distance.