Chevrolet Malibu 2007 Malibu Owner's Manual page 248

Setting the Tone
(Bass/Midrange/Treble)
P Q
TONE / / (Bass/Treble): Press and release
this button until BASS, MID (midrange), or TREB
(treble) displays. Turn the ADJ knob to increase or
to decrease the tone. The display shows the bass,
mid, or treble level. If a station is weak or has static,
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 adjusts to the
middle position and a beep sounds.
To adjust all tone controls to the middle position,
press and hold the tone button when no tone
control displays. ALL CENTERED displays and a
beep sounds.
248
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 displays when
you first press this button. Each time you press this
button, another equalization setting displays and
automatic tone or automatic equalization switches
to that preset equalization settings.
To return to the manual mode, press the AUTO
TONE or AUTO EQ button until CUSTOM displays.
Then manually adjust the bass, midrange, and
treble using the tone button.