Abstract: An automotive security, convenience and fuel saving system which utilizes a pushbutton combination panel in lieu of conventional keys to control all access to ignition and engine compartment, prevent burglary of mounted components, save fuel, and screen physically and mentally disabled drivers. Basic to the system are pulse gates, pulse triggered locking and unlocking means for hood-ignition-start, burglar alarm pulses to the horn, improved fuel economy pulses to the air conditioner, and pulses to screen physically or mentally disabled drivers. The invention further consolidates and improves the efficiencies of each of these functions and is a new application for and an extended use of electric permutation locks referenced and as modified.