Abstract: In this paper, we presented a vehicle tracking system using GPS modem and GSM module and locking it down using remote mobile accessing. The system is designed to provide security to vehicle owners from theft and unauthorized access. The system performs multiple operations which include:-When an unauthorized person tries to gain access of your vehicle, the information is analyzed using sensors and transmitted to user through GSM. The coordinates of the location of vehicle are sent via GPS. The controlling of vehicle is done through microcontroller. The doors of the vehicles and accelerator pedal are locked down when reading instructions from the user. The speed of the motor is gradually reduced and comes to a halt. By using the control concepts listed in the paper number of control features can be implemented in the same fashion.

Keywords: GPS, GSM, sensors, Speed control, Tracking, Vehicle locking, Vehicle control.