2008 Saturn Astra Owner's Manual - Page 108

4-32 Instruments and Controls On some vehicles, if a warning message appears, the display is blocked from other functions. See DIC Warnings and Messages (Base and Uplevel Systems) on page 4-37 for information on acknowledging the message. For each functional area there is a main page (Main), which is selected at the top edge of the display: On some vehicles, menu options can be selected with the multifunction knob on the audio system: 1. Turn the multifunction knob until the desired menu item is highlighted. 2. Press the multifunction knob to select the menu item. To exit a menu, turn the multifunction knob clockwise or counterclockwise to "Return" or "Main", then press the knob. Menu options can be selected with the left thumbwheel on the steering wheel: 1. Turn the thumbwheel down to advance to the next menu item. Turn the thumbwheel up to return to the previous menu item. 2. Press the thumbwheel to select the menu item. • Audio • Trip computer, if your vehicle has this feature See "Trip Computer" later in this section for more information. For Audio functions, see Audio System(s) on page 6-1 for more information.