See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

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. - Chec ...

Instrument Panel, Leather, Vinyl, and Other Plastic Surfaces
Use a soft microfiber cloth dampened with water to remove dust and loose dirt. For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap solution. Notice: Soaking or sat ...