Buick Regal: Vehicle Care

 Description and Operation

IMMOBILIZER DESCRIPTION AND OPERATION Without BTM The immobilizer system functions are provided by the Immobilizer Control Module, the Body Control Module (BCM) and the Engine Control Module (ECM), as well as any modules which store and report the environment identifier. When an ignition key is

 Engine Exhaust

Warning: Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: The vehicle idles in areas with poor ventilation (parking garages, tunnels, deep snow that may block underbody air