Abstract: A supplementary locking mechanism for a motor vehicle which mechanism is adapted to lock concurrently and simultaneously both the steering column and the transmission shift with the purpose of attempting to prevent theft or unauthorized use of a motor vehicle, such device and apparatus comprising a locking mechanism based on a retractible trigger mechanism that reciprocally moves a longitudinally extending finger-like ratchet member that is adapted to be inserted simultaneously through both the steering column and the transmission shift column so as to lock two colums at the same time to the outer enclosing cylindrical frame.