Chevrolet 2009 TrailBlazer, Owner'S Manual

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Playing the Radio
PWR (Power): Push to turn the system on and off.
o p
VOL or VOLUME: Turn to increase or to decrease
the volume.
DISPL (Display) or INFO (Information): Press to
display the time while the ignition is off.
For RDS, press to change the information while using
RDS. The display options are station name, RDS station
frequency, PTY (program type), and the name of the
program (if available).
For XM, press to retrieve four different categories
of information related to the current song or channel:
Artist, Song Title, Category or PTY, Channel
Number/Channel Name.
To change the default on the display, press the
DISPL or INFO knob until the desired display is shown,
then briefly press and hold the knob until a beep is
heard. The selected display becomes the default.
AUTO VOL (Automatic Volume): With automatic
volume, the audio system adjusts automatically to make
up for road and wind noise while driving by increasing
the volume as vehicle speed increases.
Set the volume at the desired level. Press this button to
select LOW, MEDIUM, or HIGH. AVOL, or depending
on the radio, MIN, MED, or MAX. AUTO VOL. Each
higher setting provides more volume compensation at
faster vehicle speeds. On some radios, NONE may
display if the radio cannot determine the vehicle speed.
To turn automatic volume off, press this button until
OFF, AVOL OFF, or AUTO VOL OFF displays.
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