See also:

Flash-to-Pass
To flash the high beams, pull the turn signal/lane change lever toward you, and release. ...

Navigation
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. ...

Maintenance Requirements
Notice: Maintenance intervals, checks, inspections, replacement parts, and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working conditi ...