Chevrolet 2007 Colorado Owner's Manual page 215

Setting Preset Stations
Up to 30 stations (six FM1, six FM2, and six AM,
six XM1 and six XM2 (if equipped)), can be
programmed on the six numbered pushbuttons,
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 EQ to select the equalization.
5. 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 and the
equalization that was selected, is 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 displays. Turn the knob to
increase or to decrease. The tone display shows
the bass or the treble level. If a station is weak
or has static, decrease the treble.
To adjust the bass and the treble to the middle
position, push and hold the AUDIO knob.
A beep sounds.
To adjust all tone and speaker controls to the
middle position, push and hold the AUDIO knob
when no tone or speaker control displays.
ALL CENTERED displays and a beep sounds.
AUTO EQ (Automatic Equalization): Press this
button to select customized equalization settings
designed for country/western, jazz, talk, pop, rock,
and classical.
To return the bass and treble to the manual
mode, push and release the AUTO EQ button
until CUSTOM displays.
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