Abstract: The control mechanism described herein includes an instrument panel-mounted shift control knob assembly which serves to selectively rotate a pulley and belt arrangement to thereby move a pivotally mounted bellcrank lever connected to the belt and to which a transmission shift control cable is operatively attached. Associated with the control knob assembly and with an adjacent lock mechanism is a series of linkage members which serve to concurrently lock the steering wheel and the parking brake in response to the positioning of an ignition key in the "Lock" position in the lock mechanism only after the control knob is manually placed in the "Park" position and the parking brake is manually applied. Additionally, a starter switch is associated with the control mechanism whereby the switch may be operated only in the Park or Neutral positions.