COMMUNICATION SYSTEM WITH MOBILE-BODY-MOUNTED DEVICE, TERMINAL DEVICE, AND CENTER SERVER

Provided is a communication system capable of enhancing convenience for remotely operating a movable-body-mounted apparatus mountable in a movable body such as a vehicle. For example, a communication system (10) includes a movable-body-mounted apparatus (20) including: a movable body information storage part (23) which stores movable body information including a received signal quality of a radio wave used for communication to/from a center server (30) and information on a vehicle (13); a separation determination part (26) which determines whether or not a user who moves along with the vehicle (13) is separated from the vehicle (13); and a movable body information notification part (27) which notifies the user of the movable body information stored in the movable body information storage part (23) when the separation determination part (26) determines that the user is separated from the vehicle (13).