What type of anti-theft devices qualify for the Passive Electronic Immobilizer Discount?

The Passive Electronic Immobilizer Discount is aimed at vehicles equipped with passive devices that automatically immobilize the vehicle without requiring any action from the driver. These devices typically work by disabling the engine when the correct key or fob is not detected. This makes the vehicle significantly less attractive to thieves, as it provides an added layer of security without requiring active participation from the owner.

In contrast, manual devices and active tracking systems do not fit the criteria for this specific discount. Manual devices require the driver to engage them, thus not meeting the 'passive' requirement. Active tracking systems, while beneficial for recovery after a theft, do not immobilize the vehicle and may not provide the same immediate deterrent effect against theft. Therefore, only passive anti-theft devices qualify for the discount, as they continuously provide protection without driver intervention.