OnStar Corporation is a popular company and it is a subsidiary of General Motors as well. The company offers subscription based communications, hand free calling, in-vehicle security systems, turn-by-turn navigation systems, etc. The company was founded in the year 1995 and it depends on CDMA data and voice communication for offering its services. The company has opened emergency call centers, where users can call all round the day and these call centers are opened in key locations across the United States. Vehicles that come with OnStar systems have the feature of Stolen Vehicle Tracking, which provide information about exact location of the vehicle.