See also:

Instrument Panel Illumination Control
The brightness of the instrument panel lighting and steering wheel controls can be adjusted. : Move and hold the thumbwheel up or down to brighten or dim the lights. ...

Introduction
The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, BUICK, the BUICK Emblem, and LACR ...

Setting the Tone(Bass/Midrange/Treble)
AUDIO: Push and release the AUDIO knob until BASS, MID (midrange) (without Bose®), or TREB (treble) displays. Turn the knob to increase or to decrease the tone. The display shows the bass, midran ...