Cadillac 2011 STS Owner's Manual page 285

To adjust the bass, midrange, and treble:
1. Press to enter the main menu.
2. Turn until BASS-MID-TREBLE displays.
3. Press to enter the tone settings.
4. Press to scroll through the settings.
5. Turn to increase or to decrease the bass,
midrange, or treble. If a station is weak or noisy,
decrease the treble.
6. Press to set the adjustment.
7. Press F6 to exit the display. To return to the
original display, repeatedly press F6 or wait for the
display to time out.
Use this feature to choose one
of the following customized equalization settings.
EQ0 (Normal)
EQ1 (Pop)
EQ2 (Rock)
EQ3 (Jazz)
EQ4 (Talk)
EQ5 (Country)
To choose an equalization setting:
1. Press to enter the main menu.
2. Turn until EQUALIZER displays.
3. Press to set the equalization setting and the
equalization setting displays.
4. Press F6 to exit the display. To return to the
original display, repeatedly press F6 or wait for the
display to time out.
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