▎ 摘　　要

NOVELTY - The assembly has a man-machine interface (14) which is adjacent to an exterior of a motor vehicle (10). A heater is configured to selectively thermally condition the man-machine interface. The heater includes a conductive polymer. The conductive polymer is a polymer material filled with electrically conductive fillers. The electrically conductive fillers optionally include one of glass, carbon nanostructures, and graphene. The man-machine interface includes a button. The button optionally includes several buttons (26A-26E) on a capacitive touchscreen (24). USE - Assembly for motor vehicle such as automobile, truck and sport utility vehicle (SUV). ADVANTAGE - The heater distributes heat efficiently without requiring large amounts of electricity and is relatively inexpensive and is easy to manufacture and assemble. The presence of two cameras increases the ability to perform face recognition. The manufacturing costs and assembly time are reduced. The compact design is provided. DESCRIPTION OF DRAWING(S) - The drawings show a side view of the vehicle with the external interface system on a front door and a schematic view of the external interface system. (Drawing includes non-English language text) Motor vehicle (10) External interface system (12) Man-machine interface (14) Capacitive touchscreen (24) Buttons (26A-26E)