A control circuit for controlling a vehicle window closing and door locking device, comprises a first circuit having three X-OR gates and one AND gate for determining the vehicle general conditions, a second circuit having AND gates and power transistors for determining the vehicle specific conditions, for energizing the individual window motors, and for activating the door lock solenoid. The windows will be closed and the doors will be locked if three conditions are met: (1) no one is seated inside the vehicle, (2) all doors are closed, and (3) the ignition key is not in the ignition.