See also:

OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview&nb ...

Services Not Included in Roadside Assistance
• Impound towing caused by violation of any laws. • Legal fines. • Mounting, dismounting or changing of snow tires, chains, or other traction devices. • Towing or services for vehicles dr ...

Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. ...