Security light won’t turn off on your GM vehicle? A faulty ignition switch could be tripping the anti-theft system. If the switch fails, your car may falsely detect an unauthorized attempt to start, keeping the light on. Haynes Manuals walk you through inspecting and replacing the switch step by step. Restore proper function—get your GM repair manual today at haynes.com. #HaynesManuals #HaynesShowsYouHow #GMRepair #AntiTheftFix | Haynes Manuals