For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

California Proposition 65 WarningSystem Settings
Configuring the Number of Favorite Pages
To configure the number of available favorite pages:
1. Press the Push/MENU/TUNE button.
2. Select Radio Settings.
3. Select Radio Favorites.
4. Select the number of available favorite pages.
5. Press the / BACK button to go back to the System Configu ...
Overview (Radio with Touchscreen)
z VOL
y (Volume)
Press to decrease or increase the volume.
O (Power)
Press and hold to turn the power on or off.
D (Home Page)
Press to go to the Home Page. See Home Page.
...
Sunroof Housing Front Drain Hose Replacement
Sunroof Housing Front Drain Hose Replacement
Callout
Component Name
Preliminary Procedure
It is only necessary to lower the headliner. Only do those steps in the
headliner replacement procedure that will lower the headliner ...