2008 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 269

H (Clock) (AM-FM Radio): The radio may have a clock button for setting the time. With this type of radio, the clock can be set with either the radio turned on or off. See Setting the Clock on page 3-86 for more information. Speed Compensated Volume (SCV): Radios with Speed Compensated Volume (SCV) automatically adjusts the radio volume to compensate for road and wind noise as the vehicle's speed changes while driving, so that the volume level stays consistent. To activate SCV: 1. Set the radio volume to the desired level. 2. Press the MENU button to display the radio setup menu. 3. Press the pushbutton under the AUTO VOLUM (automatic volume) label on the radio display. 4. Press the pushbutton under the desired Speed Compensated Volume setting (OFF, Low, Med, or High) to select the level of radio volume compensation. The display times out after approximately 10 seconds. Each higher setting allows for more radio volume compensation at faster vehicle speeds. Finding a Station BAND: Press to switch between AM, FM, or XM™ (if equipped). The selection displays. f (Tune): Turn to select radio stations. ©SEEK ¨: Press either arrow to go to the previous or to the next station and stay there. To scan stations, press and hold either arrow for a few seconds until a beep sounds. The radio goes to a station, plays for a few seconds, then goes to the next station. For AM-FM Radio, the station frequency flashes while the radio is in the scan mode. Press either arrow again to stop scanning. The radio only seeks and scans stations with a strong signal that are in the selected band. For the AM-FM Radio, scan presets within the current selected band by pressing and holding either seek arrow for four seconds until a double beep sounds. The radio goes to a stored preset, plays for a few seconds if a strong signal is present, then goes to the next stored preset. The station frequency flashes while the radio is in the scan mode. 3-91