Buick 2005 LaCrosse Owner's Manual page 208

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 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/Treble)
e (Bass/Treble): Push and release this knob until
BASS or TREBLE appears on the display. Turn
this knob to increase or to decrease. The display will
show the bass or the treble level. If a station is weak or
noisy, decrease the treble.
To adjust the bass and the treble to the middle position,
push and hold the tone knob. The radio will produce
one beep.
To adjust all tone and speaker controls to the middle
position, push and hold the tone knob when no tone or
speaker control is displayed. ALL CENTERED will
appear on the display and you will hear a beep.
EQ (Equalization): Press this button to select
customized equalization settings designed for
country/western, jazz, talk, pop, rock, classical,
and custom.
To return the bass and treble to the manual mode, push
and release the tone knob until BASS or TREBLE
appears on the display.