Abstract: A Vehicle Defense or Security System (VDS) which, once triggered, generates enough smoke to completely engulf the interior of a protected vehicle. The smoke attracts attention to the vehicle and visually impairs would be thieves from seeing valuables inside the vehicle. VDS can be used as an add-on to existing alarms or as a stand-alone defense system. The smoke generated is non-toxic and harmless to humans and the interior of the vehicle. This system provides a unique, effective defense or security system which is silent to eliminate annoying false alarm sirens, horns or the like.