1. IN COMBINATION WITH A VEHICLE BODY INCLUDING A SEAT AND A PASSENGER ACCESS DOOR, SAID SEAT BEING MOUNTED ON THE BODY BY A SEAT POSITION ADJUSTING MECHANISM, A REVERSIBLE MOTOR CONNECTED WITH THE MECHANISM FOR DISPLACING THE SEAT IN THE BODY, A SELECTOR SWITCH HAVING PLURAL FIXED CONTACTS EACH CORRESPONDING TO A SELECTABLE POSITION OF SAID MECHANISM AND A MOVABLE CONTACT, A POSITION RESPONSIVE SWITCH HAVING PLURAL FIXED CONTACTS EACH CONNECTED WITH A DIFFERENT ONE OF THE SELECTOR SWITCH FIXED CONTACTS AND HAVING A ROTOR DRIVEN BY SAID MECHANNISM, SAID ROTOR INCLUDING A PAIR OF CONDUCTIVE CONTACT SEGMENTS ENGAGEABLE WITH THE POSITION RESPONSIVE SWITCH FIXED CONTACTS AND SEPARATED BY A PAIR OF NONCONDUCTIVE CONTACTS ENGAGEABLE WITH ONE FIXED CONTACT AT A TIME, ONE OF THE CONDUCTIVE SEGMENTS OPERATIVELY CONNECTED ONE OF THE CONDUCTIVE SEGMENTS OPERATIVELY CONNECTED THE OTHER OF THE CONDUCTUVE SEGMENTS OPERATIVELY CONNECTED WITH THE MOTOR FOR REVERSE ENERGIZATION THEREOF, A VOLTAGE SOURCE CONNECTIBLE TO THE SELECTOR SWITCH MOVABLE CONTACT WHEREBY THE MOTOR IS ENERGIZED IN RESPONSE TO POSITIONAL DISAGREEMENT OF THE SELECTOR SWITCH AND SAID MECHANISM TO DISPLACE THE MECHANISM TO A SELECTED POSITION, AND A DOOR ACTUATED SWITCH CONNECTED BETWEEN SAID VOLTAGE SOURCE AND THE SELECTOR SWITCH MOVABLE CONTACT AND ADAPTED TO CONNECT THE VOLTAGE SOURCE TO THE SELECTOR SWITCH MOVABLE CONTACT WHEN THE DOOR IS CLOSED AND TO A SELECTED POSITION RESPONSIVE SWITCH FIXED CONTACT WHEN THE DOOR IS OPEN WHEREBY THE MOTOR IS ENERGIZED TO DISPLACE THE MECHANISM TO A PREDETERMINED POSITION, AND A SEAT SWITCH CONNECTED BETWEEN THE VOLTAGE SOURCE AND THE SELECTOR SWITCH MOVABLE CONTACT AND BEING CLOSED IN RESPONSE TO SEAT OCCUPANCY TO RENDER THE SELECTOR SWITCH EFFECTIVE TO CONTROL ENERGIZATION OF THE MOTOR TO DISPLACE THE MECHANISM TO THE SELECTED POSITION.