See also:

How OnStar® Service Works
In order to provide you with OnStar® services, your vehicle’s OnStar® system has the capability of recording and transmitting vehicle information. This information is automatically sent to an ...

If No Steam Is Coming From YourEngine
If you get an engine overheat warning but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: • Climb a long hill on a hot day. â ...

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 ...