Hummer 2003 H2 Owner's Manual page 215

4. Press AUTO EQ to select the equalization that best
suits the type of station selected.
5. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the station you set will return
and the equalization that you selected will also be
automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.
Setting the Tone (Bass/Treble)
AUDIO: Push the AUDIO knob until BASS or TREB
appears on the display. Turn the knob to increase or to
decrease. If a station is weak or noisy, you may want to
decrease the treble.
To adjust bass or treble to the middle position, select
BASS or TREB and push and hold the AUDIO knob.
The radio will produce one beep and adjust the display
level to zero.
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. The radio will produce
one beep and CENTERED will appear on the display.
AUTO EQ (Automatic Equalization): Press this
button to choose equalization settings.
The setting last chosen will appear on the display when
you first press AUTO EQ. Each time you press this
button, another setting will appear on the display and
AUTO EQ will switch to one of the preset settings
listed later.
Your audio system allows you to choose from four
different equalization settings: normal, driver, rear and
spacious. These settings can be used while listening to
the radio, the cassette tape, or the CD player.
NORMAL: This setting enhances the stereo effect.
DRIVER: This setting gives the driver the best
sound quality.
REAR: This setting gives the rear seat passengers the
best sound quality.
SPACIOUS: This setting makes the listening space
seem larger.
The radio will save separate AUTO EQ settings for each
preset and source.
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