摘要：The purpose of this paper is to build a secured and reliable vehicle anti-theft system which will have the ability to access the vehicle subsystems from a remote location where there is gsm network. And also, the design method involves the interfacing of gsm/GPRS modem module with the vehicle ignition subsystem, and the test result shows that it performs some control actions on the vehicle subsystems from a mobile phone, having taken the advantage of the wide coverage area of some gsm networks. Hence the topic is “Remotely Controlled Vehicle Anti-theft System via gsm Network”.