Abstract: The present invention relates to a system for regulating use of mobile communication functions while driving. The system includes a vehicle diagnostic device configured to generate vehicle diagnostic data indicating a current state of a vehicle, a vehicle diagnostic information port configured to provide the vehicle diagnostic data, a transceiver configured to plug into the vehicle diagnostic information port and transmit the vehicle diagnostic data using a wireless communication protocol; and a vehicle responsive phone including communication blocking software configured to receive the vehicle diagnostic data and to terminate the operation of at least one function of the vehicle responsive phone based on the received vehicle diagnostic data.