2000 GMC Sierra 1500 Pickup Owner's Manual - Page 177

yellowblue AM-FM Stereo Finding a Station AM-FM: Press the lower knob to switch between AM and FM. The display shows your selection. TUNE: Turn the lower knob to tune in radio stations. SEEK: Press the right arrow to tune to the next higher station and the left arrow to tune to the next lower station and stay there. SCAN: Select either AM, FM1 or FM2 mode and press both SEEK buttons to listen to a few seconds of each radio station. SCAN will light up on the display. The radio will automatically SCAN to the next higher station, play that station for a few seconds, then SCAN to the next higher station. Press VOLUME or both SEEK buttons to stop scanning. Playing the Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn the knob clockwise. Turn it counterclockwise to decrease volume and turn the radio off. RECALL: Display the time with the ignition off by pressing the recall knob. When the radio is playing, press this knob to recall the station frequency. 3-9