OnStar Services

See also:

Other Information
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Turn-by-Turn
This display is used for the OnStar or Navigation System Turn-by-Turn guidance. See OnStar Overview or the navigation manual, if the vehicle has navigation, for more information. ...

Map Data Updates
The navigation map database is stored on a compact flash card. It is usable only in this type of navigation system, and will not function in other electronic devices. The map in the vehicle was ins ...