GMC 2004 Sonoma Owner's Manual page 145

q r
SEEK : Press the right or the left arrow to go to
the next or to the previous station and stay there.
The radio will seek only to stations that are in the
selected band and only to those with a strong signal.
q r
PSCAN (Preset Scan): Press and hold
either arrow for more than two seconds and the radio
will produce one beep. The radio will go to the first
preset station stored on the pushbuttons, play for a few
seconds, then go on to the next preset station. SCAN
will appear on the display. Press either arrow again
or one of the pushbuttons to stop scanning presets.
The radio will scan only to the preset stations that are in
the selected band and only to those with a strong
signal.
Setting Preset Stations
The six numbered pushbuttons let you return to your
favorite stations. You can set up to 30 stations (six FM1,
six FM2, and six AM, six XM1 and six XM2 (48
contiguous US states, if equipped), by performing the
following steps:
1. Turn the radio on.
2. Press BAND to select FM1, FM2, AM, or XM1
or XM2.
3. Tune in the desired station.
4. Press AUTO TONE to select the equalization.
5. Press and hold one of the six numbered
pushbuttons. The radio will produce one beep.
Whenever you press that numbered pushbutton, the
station you set will return and the equalization
that you selected will be automatically stored for
that pushbutton.
6. Repeat the steps for each pushbutton.
Setting the Tone (Bass/Treble)
AUDIO: Push and release the AUDIO knob until BASS
or TREB appears on the display. Turn the knob to
increase or to decrease. The display will show the bass
or the treble level. If a station is weak or noisy, you
may want to decrease the treble.
To adjust the bass and the treble to the middle position,
push and hold the AUDIO knob. The radio will produce
one beep and adjust the display level to the middle
position.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker control is displayed. ALL will appear on
the display and you will hear a beep with the level
display in the middle position. The bass and the treble
will be adjusted to the middle position.
3-41