GMC 2002 Savana Van Owner's Manual page 164

AUTO VOL (Automatic Volume): With automatic
volume, your audio system adjusts automatically 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 will appear on
the display. Each higher volume 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 will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
automatic volume, select OFF.
DISP (Display): Pressing this button will display the
station being played or it will display the clock. Clock
display is available with the ignition turned off.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection.
A "
TUNE : Turn this knob to choose radio stations.
A "
SEEK : Press the right or left arrow to seek to the
next or previous station and stay there. The radio will
seek to stations with a strong signal only. The sound will
mute while seeking.
A "
PSCAN (Preset Scan): Press and hold one of
the arrows for more than two seconds. The radio will
produce one beep. The radio will scan to the first preset
station stored on your pushbuttons, play for a few
seconds, then go on to the next station. Press one of the
arrows or one of the pushbuttons again to stop scanning.
SCAN will be displayed whenever the tuner is in the
preset scan mode. The channel number (P1 through P6)
will appear with the frequency. In FM mode, this
function will scan through the current band such as FM1
or FM2. The radio will scan to stations with a strong
signal only. The sound will mute while scanning.
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