Throughout the world, car thefts have increased enormously and various agencies / insurance companies have established regulations to limit the loss. Lite-On Automotive, an ISO 9002 certified manufacturer, with over 17 years of vehicle security system experiences, has been designing to prevent the increase of car theft by developing a series of reliable immobiliser systems with the guidelines of insurance regulations. With these immobiliser systems, vehicles would not be driven away from users' parking place so as to ensure further security.