2002 GMC Sonoma Owner's Manual - Page 177

Setting Preset Stations The six numbered pushbuttons let you return to your favorite stations. You can set up to 18 stations (six AM, six FM1 and six FM2) by performing the following steps: 1. Turn the radio on. 2. Press AM FM to select AM, FM1 or FM2. 3. Tune in the desired station. 4. Press AUTO TONE to select the setting you prefer. 5. Press and hold one of the six pushbuttons. The sound will mute. When it returns, release the pushbutton. Whenever you press that numbered pushbutton, the station you set will return and the tone you selected will be automatically selected for that pushbutton. 6. Repeat the steps for each pushbutton. Setting the Tone (Bass/Treble) BASS: Press this knob lightly so it extends. Turn the knob clockwise to increase bass and counterclockwise to decrease bass. TREB (Treble): Press this knob lightly so it extends. Turn the knob clockwise to increase treble and counterclockwise to decrease treble. If a station is weak or noisy, you may want to decrease the treble. Push these knobs back into their stored positions when you're not using them. AUTO TONE: This feature allows you to choose bass and treble equalization settings designed for country/western, jazz, talk, pop, rock and classical stations. Each time you press the AUTO TONE button, this feature will switch to one of these program types. To return the bass and treble to the manual mode, either press and release the AUTO TONE button until the display goes blank or press and release the BASS or TREB knobs and turn them until the display goes blank. 3-23