2005 Buick LeSabre Owner's Manual - Page 169

Setting the Tone (Bass/Treble) AUDIO: Push and release this knob until BASS, MID, or TREBLE appears on the display. Then turn the AUDIO knob to increase or to decrease. If a station is weak or noisy, decrease the treble. To adjust bass, midrange, or treble to the middle position, select BASS, MID, or TREBLE. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. BASS and a zero, MID and a zero, or TREBLE and a zero will appear on the display. To adjust both tone controls and both speaker controls to the middle position, first end out of audio mode by waiting five seconds without making any changes. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. ALL CENTERED will appear on the display. EQ (Equalizer): Press this button to select customized equalization settings designed for country/western, jazz, talk, pop, rock, and classical. Adjusting the Speakers (Balance/Fade) AUDIO: To adjust the balance between the right and the left speakers, push and release the AUDIO knob until BAL appears on the display. Then turn the AUDIO knob to move the sound toward the right or the left speakers. A bar graph with indicators will show how the sound is balanced. To adjust the fade between the front and the rear speakers, push and release the AUDIO knob until FADE appears on the display. Then turn the AUDIO knob to move the sound toward the front or the rear speakers. A bar graph with indicators will show how the sound is balanced. To adjust balance or fade to the middle position, select BAL or FADE. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. The indicator will be centered on the display. To adjust both tone controls and both speaker controls to the middle position, first end out of audio mode by waiting five seconds without making any changes. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. ALL CENTERED will appear on the display. 3-59