2002 Chevrolet TrailBlazer Owner's Manual - Page 219

If your vehicle has the Bose radio, your audio system allows you to choose from four different equalization settings: talk, driver, normal and spatial. These settings can be used while listening to the radio or the CD player. Press the AUTO EQ button to scroll through your choices. Select TALK when listening to non-musical material such as news, talk shows, sports broadcasts and books on tape. This settings makes spoken words sound very clear. Select DRIVER to give the driver the best possible sound qualities. Select NORMAL to enhance the stereo effect. Select SPATIAL to make the listening space seem larger. When AUTO EQ NORMAL is displayed, the system will provide the best overall Bose performance. The radio saves separate AUTO EQ settings for each preset and source. Adjusting the Speakers AUDIO (Balance/Fade): The AUDIO control adjusts balance and fade. To adjust balance, press the AUDIO control until BAL appears on the display. Turn the control to adjust the sound to the left or right speakers. The middle position balances the sound between the speakers. To adjust fade, press and hold the AUDIO control until FAD appears on the display. Turn the control to adjust the sound to the front or rear speakers. The middle position balances the sound between the speakers. To set the balance and fade to the middle position, select balance or fade and press and hold the AUDIO control. The radio will beep once and will set the display level to the middle position. To set all tone and speaker controls to the middle position, press and hold the AUDIO control when tone or speaker controls are not active. The radio will produce one beep and CENTERED will appear on the display. 3-47