The system provides such traditional services as vehicle inspection via bus interface, maintenance based on driving habits, and protection, rescue and E-call services based on T-Box. The VCM, EMS, ECU, TCU, EHC, PEV battery, motor and electronic control management systems understand changes to core layer data of the car, and thus predict potential problems with key components such as the battery and motor. It will alert the user to a possible breakdown, and instruct the user to avoid it. If the problem cannot be avoided, the system will contact rescue services in advance. The system will, prior to a scheduled long trip, remind the user to subject the car to comprehensive inspection, refueling and charging, and contact maintenance services in advance if the car has a potential problem as per the inspection result. Even if the car has a fault, through the BCM and ECU the system can help the user understand the fault and contact visiting repair services, thus eliminating the user's concerns.