Reactivation for Subsequent Owners
Push 
and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Wiper Blades
Wiper blades need to be cleaned and kept in good condition to provide a clear view.
• Signs of wear include streaking, skipping across the windshield, and worn or split rubber.
• Trained dealer ...
Cleaning the RSE Overhead Console
When cleaning the RSE overhead console surface, use only a clean cloth dampened with clean water. ...
Resetting the Power Folding Mirrors
Reset the power folding mirrors if:
• The mirrors are accidentally obstructed while folding.
• They are accidentally manually folded/unfolded.
• The mirrors vibrate at normal driving speeds.
...