See also:

High/Low—Beam Headlamps (Uplevel)
The high/low beam headlamps on the uplevel are High Intensity Discharge (HID) and should be replaced at the dealer. ...

Listing Stored Numbers
The list command will list all stored numbers and name tags. Using the “List” Command 1. Press and hold for two seconds. For vehicles with a navigation system say “Hands Free” after the ton ...

OnStar® Destination Download (US and Canada)
OnStar Destination Download (if equipped) is a service available for OnStar subscribers that makes operating your navigation system much simpler. It allows subscribers to request and receive navig ...