Chevrolet 2007 Colorado Owner's Manual page 214

AUTO VOL (Automatic Volume): Automatic
volume automatically adjusts the audio system to
make up for road and wind noise as you drive.
Set the volume at the desired level. Press
this button to select LOW, MEDIUM, or HIGH.
AVOL displays. Each higher setting allows
for more volume compensation at faster vehicle
speeds. Then as you drive, automatic volume
increases the volume, as necessary, to overcome
noise at any speed. The volume level should
always sound the same to you as you drive.
NONE displays if the radio cannot determine the
vehicle speed. To turn automatic volume off,
press this button until OFF displays.
Finding a Station
BAND: Press this button to switch between
FM1, FM2, AM, or XM1 or XM2 (if equipped).
The selection displays.
o p
TUNE : Turn this knob to select radio
stations.
214
q r
SEEK : Press the SEEK arrows to go to the
previous or to the next station and stay there.
The radio only seeks stations with a strong signal
that are in the selected band.
q r
SCAN : Press and hold either SCAN arrow
for more than two seconds. SCAN displays and
the radio produces one beep. The radio goes to
a station, plays for a few seconds, then goes to the
next station. Press either SCAN arrow again or
one of the pushbuttons to stop scanning presets.
To scan preset stations, press and hold either
SCAN arrow for more than four seconds.
PSCN displays and the radio produces one beep.
The radio goes to a preset station, plays for a
few seconds, then goes to the next preset station.
Press either SCAN arrow again or one of the
pushbuttons to stop scanning presets.
The radio only scans stations with a strong
signal that are in the selected band.