VEHICLE DEVICE

A vehicle device in one embodiment includes: a control unit accesses a peripheral device and executes functions when a vehicle is used; a connection portion to which an external device is connected, the external device communicable with the control unit and executing a function when the vehicle is used; and a determination unit determining whether the external device is connected to the connection portion in an executable state of the function. The control unit activates the external device to enable execution of the function and stops at least one function when the external device is determined to be connected to the connection portion in the executable state. The control unit executes the at least one function being stopped for the external device to execute the function when the external device is determined to be no longer in the executable state.