Onboard update apparatus and update processing program

A computer program product for updating a vehicle, the computer program product comprising a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor, caused at least one programmable processor to perform operations comprising:

• communicating with an external server outside of the vehicle through a first communication apparatus when a target onboard electronic control unit for updating adopts an update program stored in a predetermined storage area in a vehicle;
• communicating with a portable device through a second communication apparatus;
• canceling adoption of the update program by the target onboard electronic control unit for updating in response to information relating to cancelation of the update program is acquired when communication with the external server is successful, and in response to the information relating to cancelation cannot be acquired the target onboard electronic control unit for updating adopts the update program;
• and
• the target onboard electronic control unit for updating adopting the update program when communication with the external server has failed;
• and
• the target onboard electronic control unit for updating adopts the update program when the control unit fails to communicate with both the outside-vehicle communication apparatus and the portable terminal;
• and
• an identification information for identifying the portable terminal is stored in the predetermined storage area in the vehicle;
• the identification information is associated with a vehicle identification number of the vehicle and stored in a storage area to which the external server is capable of referencing;
• and
• the control unit establishes communication with the portable terminal on the basis of the identification information;
• and
• wherein a plurality of pieces of the identification information for identifying the portable terminal is assigned with a priority order for communication with the external server are stored in the predetermined storage area in the vehicle;
• and
• communication with the external server via the portable terminal is performed by the control unit on the basis of the priority order.