Patent attributes
A vehicle use assistance system, in which security settings are also set in operations such as approval, confirmation, and recording of content accompanying termination of an application file uses an open passcode for opening a vehicle use assistance application 120 and a close passcode for performing normal termination of and closing a vehicle use assistance application file 130 in an open state are set for each of vehicle use assistance application files 130 used by a vehicle use assistance application 120 that assist with the use of various functions with which a vehicle 200 is equipped. A vehicle use assistance system 100 is equipped with: an application file unlocking function for receiving input of an open passcode and opening a vehicle use assistance application file 130; and an application file locking function for receiving input of a close passcode and performing normal termination of an closing a vehicle use assistance application file 130 that is in an open state.