2003 GMC Sierra 1500 Pickup Owner's Manual - Page 240

Setting Preset Stations The six numbered pushbuttons let you return to your favorite stations. You can set up to 30 stations (six AM, six FMI and six FM2, six XM1 and six XM2 (USA only, if your radio is equipped with the XM Satellite Radio Service) or six DAB1 and six DAB2 (Canada only, if your radio is equipped with DAB), by performing the following steps: 1. Turn the radio on. 2. Press BAND to select AM, FMI or FM2, or XM1, XM2, or DABI, DAB2. Setting the Tone (Bassflreble) AUDIO: Press and release the AUDIO knob until BASS, MID, or TREB appears on the display. Turn the knob to increase or to decrease. The display will show the bass, midrange, or treble level. if a station is weak or noisy, you may want to decrease the treble. To adjust the bass, midrange, and treble to the middle position, push and hold the AUDIO knob. The radio will produce one beep and adjust 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 control is displayed. The radio will produce one beep and display ALL with the level display in the middle position. AUTO EQ (Automatic Equalization): Press this button to choose bass and treble equalization settings designed for country/western,jazz, talk, pop, rock and classical stations. To return the bass and treble to the custom mode, press and release the AUDIO knob, until CUSTOM appears. 3. Tune in the desired station. 4. Press AUTO EQ to choose the bass and treble equalization that best suits the type of station you are listening to. 5. Press and hold one of the six numbered pushbuttons. The radio will produce one beep. Whenever you press that numbered pushbutton, the station you set will return and the bass and treble equalization that you selected will also be automatically selected for that pushbutton. 6. Repeat the steps for each pushbutton. If you radio is equipped with the Bose audio system, your equalization settings are either CUSTOM or TALK. 3-85