Chevrolet 2007 TrailBlazer Owner's Manua page 242

AUTO VOL (Automatic Volume): With automatic
volume, the audio system adjusts automatically
to make up for road and wind noise as you drive
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
displays. Each higher setting provides more
volume compensation at faster vehicle speeds.
To turn automatic volume off, press this button
until AVOL OFF displays.
Finding a Station
BAND: Press this button to switch between FM1,
FM2, AM, or XM1 or XM2 (if equipped). The
display shows the selection.
TUNE: Turn this knob to select radio stations.
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SEEK : Press either the left
SEEK or TYPE arrows to go to the previous or
the next station and stay there.
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The radio only seeks stations with a strong signal
that are in the selected band.
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right
until SCAN displays and a beep sounds. The radio
goes to a station, plays for a few seconds, then
goes to the next station. Press either the left
right
scanning.
To scan preset stations, press and hold either
the left
for more than four seconds. PSCN displays and a
double beep sounds. The radio goes to a preset
station, plays for a few seconds, then goes to
the next preset station. Press either the left
or right
stop scanning presets.
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or right
The radio only scans stations with a strong signal
that are in the selected band.
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SCAN : Press and hold either the left
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SCAN or TYPE arrows for two seconds
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SCAN or TYPE arrows again to stop
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or right SCAN or TYPE arrows
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SCAN or TYPE arrows again to
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or
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or
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