2008 GMC Envoy Owner's Manual - Page 204

Setting Preset Stations Up to 30 stations (six FM1, six FM2, and six AM, six XM1 and six XM2 (if equipped)), can be programed on the six numbered pushbuttons, by performing the following steps: 1. Turn the radio on. 2. Press BAND to select FM1, FM2, AM, or XM1 or XM2. 3. Tune in the desired station. 4. Press and hold one of the six numbered pushbuttons until a beep sounds. When that numbered pushbutton is pressed, the station that was set, returns. 5. Repeat Steps 2 through 4 for each pushbutton. To store an equalization setting to a preset station perform the following: 1. Tune to the preset station. 2. Press and release the AUTO EQ button to select the equalization setting. Once the equalization no longer displays, the equalization is set for that preset station. Setting the Tone (Bass/Midrange/Treble) AUDIO: Push and release until BASS, MID (midrange) (without Bose®), or TREB (treble) displays. Turn to increase or to decrease the tone. The display shows the bass, midrange (without Bose®), or treble level. If a station is weak or has static, decrease the treble. To adjust the bass, midrange (without Bose®), or treble to the middle position while it is displayed, push and hold this knob. The radio produces one beep and adjusts the display level to the middle position. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker controls displays. ALL CENTERED displays and a beep is heard. AUTO EQ (Automatic Equalization): Press to select customized equalization settings designed for country/ western, jazz, talk, pop, rock, and classical. To return the bass and treble to the manual mode, push and release this button until CUSTOM displays. The radio saves separate AUTO EQ settings for each preset and source. If the radio has the Bose® audio system, the equalization settings are either CUSTOM or TALK. 3-70