Cadillac 2008 CTS Navigation System Owner's Manual page 83

Audio Stream: Press this button to display the audio
stream number and to change the language heard.
Repeatedly press this button to toggle through the
available languages. This may not be available on all
DVDs. This button is not available when the DVD
is stopped.
Subtitle Stream: Touch this button to playback the
video with subtitles. Repeatedly press this button
to toggle through the available languages. To turn the
subtitles off, press this button until Off is selected.
This button is not available when the DVD is stopped.
This may not be available on all DVDs.
Top Menu: Touch this button to display the first menu
of the DVD. This button is not available on all DVDs.
Menu: Touch this button to display the DVD menu of
the current area of the DVD that is playing. This button
is not available for DVD audio.
Keypad: Touch this button to display the title/chapter,
the group/track, or the menu number screen; type
in the appropriate number on the keypad.
Setup: Touch this button to display the DVD Setup
screen. The DVD Setup screen allows you to change the
initial settings; language and aspect, to change the
brightness, contrast, and mode, and to change autoplay.
The initial settings and auto play are only available
when the DVD is not playing.
Initial Settings: From the DVD Setup screen, touch this
button to change audio, subtitle, and menu languages,
and to view the aspect of the DVD. The movie must be
stopped to use this menu. These settings are not
available on all DVDs.
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