OnStar Services

See also:

Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NH ...

Accessories and Modifications
Adding non—dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions sys ...

XM Categories
XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using the SEEK or SEEK buttons, or the TUNE knob. ...