Unique vehicle-identifying information, such as a VIN, for distinguishing or identifying a vehicle is stored in advance in a vehicle-identifying-information storing section. A vehicle-running-state information storing section collects and stores various pieces of vehicle-running-state information relevant to an operating state of airbag system and the like during a running of the vehicle. When a vehicle-abnormal-state detecting section detects an abnormality, a prioritizing section imparts a priority sequence in order of the vehicle-identifying information, information relevant to the operating state of airbag system, and the other vehicle-running-state information. Then, the prioritized information is promptly sent to a side of base station. Such a system configuration makes it possible to reliably send a minimum required amount of high-priority information necessary to identify the vehicle, such as the vehicle-identifying information, even in a situation that many vehicles are seriously damaged due to an accident, a disaster or the like.
Vehicular Communication Device and Communication Management System