A system and method of automatically prevents a cellular telephone operated by a driver from receiving or transmitting text and email messages while driving a motor vehicle. The system includes a first Bluetooth transceiver located inside a motor vehicle configured to create a link, such as a piconet, with a compatible second Bluetooth receiver located in the cellular telephone that has text and email messaging capabilities. The cellular telephone includes a software program loaded into its memory designed to automatically disable the device's text and mail messaging capabilities when the link is created. Upon entering and starting the motor vehicle, the link is established, which automatically blocks or deactivates the telephone's transmission and receiving message capabilities. In one embodiment, the software program provides a menu page that allows the driver to selectively turn ON or OFF different features when the two transceivers are linked. Access to the menu page may be controlled by passwords.