Chevrolet 2006 Malibu Owner's Manual page 202

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 TONE or AUTO EQ to select the
equalization.
5. Press and hold one of the six numbered
pushbuttons until you hear a beep. Whenever
that numbered pushbutton is pressed, the station
that was set will return and the equalization that
was selected will be stored for that pushbutton.
6. Repeat the steps for each pushbutton.
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Setting the Tone
(Bass/Midrange/Treble)
P Q
TONE / / (Bass/Treble): Press and release this
button until BASS, MID, or TREB appears on the
display. Turn the ADJ knob to increase or to decrease.
The display will show the bass, mid, or treble level.
If a station is weak or noisy, decrease the treble.
To adjust bass, midrange, or treble to the middle
position, select BASS, MID, or TREB. Then press
and hold the tone button for more than two seconds.
The display level will be adjusted to the middle position
and you will hear a beep.
To adjust all tone controls to the middle position,
press and hold the tone button when no tone control
is displayed. ALL CENTERED will appear on the display
and you will hear a beep.
AUTO TONE/AUTO EQ (Automatic Equalization):
Press this button to select customized equalization
settings designed for country, jazz, talk, pop, rock,
and classical.
The equalization setting last chosen will appear on the
display when you first press this button. Each time
you press this button, another equalization setting will
appear on the display and automatic tone or automatic
equalization will switch to that preset equalization
settings.