A portable terminal executing an application program for realizing a predetermined function may not require a re-input operation of setting information and may reduce a restart time of the predetermined function by way of an in-vehicle apparatus. Specifically, the in-vehicle apparatus acquires and stores the setting information from the portable terminal. When a forced termination of the application program is detected, the in-vehicle apparatus transmits the setting information to the portable terminal after the application program is restarted by the portable terminal. The setting information from the in-vehicle apparatus enables the portable terminal to perform an auto-resetting process for redefining/resetting the setting information in order to resumes the application program.