To easily and accurately present the cost and details of the inspection and maintenance of a vehicle to a user, thereby realizing the inspection and maintenance of the vehicle, suitable for the user.

The method comprises: accepting vehicle attribute information correlated with a vehicle to be inspected and maintained, searching maintenance estimate information including maintenance details information for each inspection item regarding a predetermined maintenance and maintenance cost information correlated with the maintenance detail information, outputting the maintenance estimate information, and accepting maintenance execution approval information which gives approval of execution of the maintenance based on the maintenance estimate information.