Saturn 2009 ASTRA - Manual (Page 106)

DIC Operation and Displays (Base Level DIC and Audio)
If the vehicle has the base level
DIC, the following information
explains how the system works. Selecting Functions
Functions and settings of some
equipment can be accessed
through the DIC. You can use the
thumbwheel, if the vehicle has
one, or the buttons on the audio
system as described following.
On some vehicles, 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.
The available menu options are
then shown in order on the display.
CD 30 with MP3 Player shown, without MP3 Player similar
4-32 Instruments and Controls