What is an anti-theft device?
Devices, either active or passive, that aid in the prevention of car theft. A passive device requires no action, arming itself automatically when the vehicle is switched off, the key is taken from the ignition, or the doors are closed.
An active device does need the driver to do action, such as locking the vehicle or depressing a lock button. These must be reactivated each time the vehicle is switched off or they will not function. Vehicles equipped with any type of anti-theft device may qualify for a reduction in coverage.