Vehicle-use key, maintenance support/management system of vehicle, and stolen vehicle check system

A maintenance support/management system for performing the maintenance support/management of a vehicle by obtaining data on the vehicle comprising:

• a radio communication means for performing communication with a communication means outside the vehicle;
• wherein the radio communication means uses a vehicle-use key used for starting a vehicle and includes the radio communication means for performing communication with an external communication means other than the vehicle, and
• wherein the communication of a portion of or the whole necessary information on the vehicle-use key is performed between the radio communication means and the external communication means outside the vehicle.

A stolen-vehicle check system for checking a stolen vehicle by obtaining data of the vehicle comprising:

• a radio communication means for performing communication between the radio communication means and a communication means outside the vehicle;
• wherein the radio communication means uses a vehicle-use key used for starting a vehicle and includes the radio communication means for performing communication with an external communication means other than the vehicle;
• wherein the communication of a portion of or the whole necessary information on the vehicle-use key is performed between the radio communication means and the external communication means outside the vehicle.