2002 GMC Envoy Owner's Manual - Page 208

AUTO VOL: Your system has a feature called automatic volume. With this feature, your audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press this button to select MIN, MED, MAX or OFF. Each choice allows for more volume compensation at faster vehicle speeds. Then, as you drive, automatic volume automatically increases the volume, as necessary, to overcome noise at any particular speed. The volume level should always sound the same to you as you drive. If you don't want to use automatic volume, select OFF. If your vehicle has the Bose radio, your audio system monitors the noise inside your vehicle. Then, automatically adjusts the volume so that it always sounds the same to you. To use automatic volume, press the AUTO VOL button until AVOL ON appears on the display. To turn automatic volume off, press the AUTO VOL button until AVOL OFF appears on the display. Finding a Station AM FM: Press this button to switch between AM, FM1 and FM2. The display shows your selection. TUNE RCL P-TYPE: Turn this control to select radio stations. SEEK SCAN : To seek, press the right or left arrow briefly to go to the next or previous station and stay there. The sound will mute while seeking. To scan, press and hold either SEEK SCAN arrow for two seconds until SC appears on the display and you hear a beep. Use scan to listen to stations for a few seconds. The radio will go to a station, stop for a few seconds, then go on to the next station. Press either SEEK SCAN arrow again to stop scanning. If you press SEEK SCAN for more than four seconds, the radio will change to preset scan mode. The sound will mute while scanning. To scan your preset pushbuttons, press and hold either SEEK SCAN arrow for more than four seconds, PRESET SCAN will appear on the display. You will hear a double beep and the P will blink with the preset number. Use PRESET SCAN to listen to each of your preset stations for a few seconds. The radio will go to a preset station stored on your pushbuttons, stop for a few seconds, then go on to the next preset station. Press either SEEK SCAN arrow again to stop scanning presets. t u 3-34