GMC 2010 Sierra Owner's Manual page 317

Setting the Tone (Bass/Treble) (AM-FM
Radio)
Bass/Treble: To adjust the bass or treble, press the
tune knob or the EQ button until the desired tone
control tab displays. Turn the tune knob clockwise or
counterclockwise to increase or decrease the setting.
The display shows the current bass or treble level.
If a station's frequency is weak, or if there is static,
decrease the treble.
Setting the Tone (Bass/Midrange/Treble)
(All Except AM-FM Radio)
BASS/MID/TREB (Bass, Midrange, or Treble): To
adjust bass, midrange, or treble:
1. Press the knob until the tone control tabs
display.
2. Highlight the desired tone control tab by doing one
of the following:
Pressing the
Press the softkey under the desired tab.
knob.
3. Adjust the setting by doing one of the following:
Turn the knob clockwise or counterclockwise.
¨
Press the SEEK, or
\
Press the FWD, or
If a station's frequency is weak or if there is static,
decrease the treble.
To quickly adjust bass, midrange, or treble to the middle
position, press the softkey positioned under the BASS,
MID, or TREB tab for more than two seconds. A beep
sounds and the level adjusts to the middle position.
To quickly adjust all tone and speaker controls to the
middle position, press the
two seconds until a beep sounds.
EQ (Equalization): Press this button to choose bass
and treble equalization settings designed for different
types of music. The choices are pop, rock, country, talk,
jazz, and classical. Selecting MANUAL or changing
bass or treble, returns the EQ to the manual bass and
treble settings.
Unique EQ settings can be saved for each source.
®
If the radio has a Bose
are either MANUAL or TALK.
©
SEEK button.
s
REV button.
knob for more than
audio system, the EQ settings
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