2008 Hummer H3 Alpha Owner's Manual - Page 184

Playing the Radio P (Power/Volume): and off. Turn clockwise or counterclockwise to increase or to decrease the volume. DISP (Display): Press to switch the display between the radio station frequency and the time. When the ignition is turned off, press to display the time. For XM™ (if equipped), press the DISP button while in XM™ mode to retrieve four different categories of information related to the current song or channel: Artist, Song Title, Category or PTY (program type), Channel Number/Channel Name. To change the default on the display, press the DISP button until you see the desired display, then hold this knob for two seconds. The radio produces one beep and the selected display becomes the default. AUTO VOL (Automatic Volume): With automatic volume, the audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press to select LOW, MEDIUM, or HIGH. Each higher setting allows for more volume compensation at faster vehicle speeds. Then as you drive, automatic volume increases the volume, as necessary, to overcome noise at any 3-50 Press to turn the system on speed. The volume level should always sound the same to you as you drive. NONE displays if the radio cannot determine the vehicle speed. To turn automatic volume off, press until AVOL OFF displays. Finding a Station BAND: Press to switch between FM1, FM2, AM, or XM1 or XM2 (if equipped). The selection displays. e (Tune): Turn to select radio stations. t SEEK u: Press and release the arrows to go to the next or to the previous station and stay there. To scan stations, press and hold either arrow for more than two seconds. SCN or SCAN displays and the radio produces one beep. The radio goes to a station, plays for a few seconds, then goes to the next station. Press either arrow again or one of the pushbuttons to stop scanning presets. To scan preset stations, press and hold either arrow for more than four seconds. PSC or PSCN displays and the radio produces two beeps. The radio goes to a preset station, plays for a few seconds, then goes to the next preset station. Press either arrow again or one of the pushbuttons to stop scanning presets. The radio only seeks and scans stations with a strong signal that are in the selected band.