1995 GMC Yukon Owner's Manual - Page 180

Upper Knob (PWR-VOL) - The upper knob has these two functions: Push it to switch the system on and off. Turn it to control the volume. SCV (Speed Compensated Volume) - Move the control ring behind the upper knob clockwise to adjust the Speed Compensated Volume feature. As you drive, this feature increases the volume to overcome noise at any particular speed. Each clockwise position on the control ring allows more compensation and at a faster rate. AM/FM - Press this button to switch between AM, FM 1 and FM2. The display will show what mode the receiver is in. RCL (Recall) - Press this button to change between the clock and the radio station frequency displayed when the radio is on. Also, press this button to display the time when the ignition is off. TUNE - Press lightly on the TUNE button to release it from its stored position. Rotate the knob clockwise to increase frequency and counterclockwise to decrease radio frequency. When done, press the knob again to return it to its stored position. Pushbuttons - The six pushbuttons let you return to favorite stations. To set the pushbuttons for up to 18 favorite stations (6 AM, 6 FM 1 and 6 FM2): 1 . Tune in the desired station. 2. Press AUTO TONE to select the best setting for the type of station chosen. 3. Press and hold one of the pushbuttons until sound returns (approximately two seconds). Whenever you press that button, the preset station will return. Repeat these steps for eachpushbutton. SEEK -Press SEEK station. to cause the receiver to seek the next higher Press 4 SEEK to cause the receiver to seek the next lower station. SCAN - Press and hold the center of the SEEK button to momentarily hear each available station. Release the button when SCAN appears in the display. The receiver will continue to scan and momenlarily stop at each station until you press the center of the SEEK button again. P. SCAN (Preset Scan) - Press this button to scan each preset pushbutton station. The receiver will continue to scan and momentarily stop at each station until you press either P. SCAN again or one of the six pushbuttons. The AUTO SCAN setting for that preset button will also return. The pushbutton number (Pl-P6) will appear momentarily just before frequency is displayed. 3-20