Abstract: A vehicle anti-theft device includes remotely operated relays for disabling the vehicle ignition and starter activated by a remote control or signal source that transmits an encoded radio frequency or infrared signal. A receive, including a decoder, located in the vehicle receives the signal and provides electrical pulses to flip flop switches that transmit electrical signals to selected trigger circuits. The trigger circuits generate short duration electrical pulses that are amplified to actuate the relays. An optional digital keypad mounted inside the vehicle may be used to close the relays in the event that the remote device is misplaced or lost.