2007 Pontiac Grand Prix Owner's Manual - Page 248

Setting the Tone (Bass/Midrange/Treble) TONE: Press and release this button until BASS, MID (midrange), or TREB (treble) displays. The SELECT LED indicator lights to show that the tone control can be adjusted. Turn the SELECT knob to increase or to decrease. If a station is weak or has static, decrease the treble. Pressing and holding the TONE button until FLAT displays, returns all of the tone controls to the middle position. EQ (Equalizer): Press this button to select customized bass, midrange, and treble equalization settings. Up to six customized equalization settings, can be programmed on the six numbered pushbuttons, by performing the following steps: 1. Turn the radio on. 2. Use the TONE button and the SELECT knob to create the desired equalization. 3. Press and hold the EQ button for two seconds. SELECT EQ # displays and the EQ symbol flashes. 4. Press EQ or turn the SELECT knob to select the desired EQ number. 5. Press and hold the EQ button or push the SELECT knob to store the equalization setting and the number. A beep sounds and EQ SAVED displays. 6. Repeat the steps for the other EQ settings and numbers. EQ 5 has been programmed at the factory for use with talk radio, but it can be set to a different tone. 248