A theft prevention system (1) for an automobile includes an alarm system module (4) having: a logic circuit; an actual vehicle speed value input configured to receive an actual vehicle speed value from the automobile; a state selection input configured to ...

A pre-warn vehicle security device is for a vehicle including a data communications bus, an alert indicator, and an alarm controller interfacing with the data communications bus. The alarm controller may cause the alert indicator to generate an alarm indic...

A pre-warn vehicle security device is for a vehicle including a data communications bus, an alert indicator, and an alarm controller. The alarm controller may interface with the data communications bus and, when in an armed mode, may cause the alert indica...