OnStar Services

See also:

Radio Menus
Radio menus are available for AM, FM, and XM, if equipped. Turn the Menu knob to open the main radio menu for that band. ...

First Engine Oil Change After Every 40 000 km/25,000 Miles
• Fuel system inspection for damage or leaks. ...

Submenus
An arrow on the right-hand edge of the menu indicates that it has a submenu with other options. ...