OnStar Services

See also:

Owner Checks and Services
At Each Fuel Stop • Check the engine oil level. See Engine Oil. Once a Month • Check the tire inflation pressures. See Tire Pressure. • Inspect the tires for wear. See Tire Inspection. ...

Climate Control System
A. Temperature Control B. Air Delivery Modes C. Fan Control D. Recirculation E. Air Conditioning F. Rear Window Defogger G. Defrost ...

Active Fuel Management™
Your vehicle’s V8 engine may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on your driving conditions. When less po ...