Active Fuel Management®

Vehicles with V8 engines may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions. When less power 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 ...

See also:

Heated Mirrors
The heated outside rearview mirrors turn on when the rear window defogger is on. (Rear Window Defogger): This button is on the climate control panel. See “Rear Window Defogger” under Dual Auto ...

Brake (red)
USA.    Canada.    Illuminates briefly as a bulb check when the ignition is switched on. If the lamp illuminates while driving, suspect low brake fluid level or a fault w ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the veh ...