An immobilizer is an anti-theft device that automatically arms a vehicle to prevent unauthorized starting and theft of the vehicle. Your vehicle may have a built-in immobilizer and if it does then the rate charged includes this information so there likely would not be a further discount for an theft deterrent system available to you.

An immobilizer has to meet certain standards to be recognized for the discount. The Canadian Standard for after-market systems requires that the immobilizer cut three vital circuits in the vehicle to disable the vehicle, namely the starter, the ignition and the fuel supply.

In Original Equipment Manufacturers (OEM) systems, the immobilizer disables the fuel injection system to render the vehicle inoperable. The Canadian Standard also demands that each theft deterrent system undergo extensive laboratory testing. Immobilizers meeting ULC S338 offer a proactive means of preventing vehicle theft.