GMC Canyon Owner's Manual page 206

Finding a Station
AM FM: Press this button to switch between FM1,
FM2, or AM. The selection displays.
TUNE: Turn this knob to select radio stations.
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SEEK : Press the right or the left arrow to
go to the next or to the previous station and
stay there.
To scan stations, press and hold either SEEK
arrow for two seconds until a beep sounds. The
radio goes to a station, plays for a few seconds,
then goes to the next station. Press either
SEEK arrow again to stop scanning.
To scan preset stations, press and hold either
SEEK arrow for more than four seconds until
two beeps sound. The radio goes to the first preset
station stored on the pushbuttons, plays for a
few seconds, then goes to the next preset station.
Press either SEEK arrow again to stop scanning
presets.
The radio only seeks and scans stations with a
strong signal that are in the selected band.
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Setting Preset Stations
Up to 18 stations (six FM1, six FM2, and six AM)
can be programmed on the six numbered
pushbuttons, by performing the following steps:
1. Turn the radio on.
2. Press AM FM to select FM1, FM2, or AM.
3. Tune in the desired station.
4. Press and hold one of the six numbered
pushbuttons until a beep sounds. When
that numbered pushbutton is pressed, the
station that was set, returns.
5. Repeat Steps 2 through 4 for each pushbutton.
Setting the Tone (Bass/Treble)
AUDIO: To adjust bass or treble, press and
release AUDIO until BAS (bass) or TRE (treble)
displays. Then press and hold the up or the down
arrow to increase or to decrease the tone. If a
station is weak or has static, decrease the treble.
To adjust bass or treble to the middle position,
select BAS (bass) or TRE (treble). Then press and
hold AUDIO for more than two seconds until a
beep sounds. B (balance) and a zero or T (treble)
and a zero displays.