Chevrolet 2003 Silverado 1500 Pickup Owner's Manual page 231

SCAN: You can also scan through the channels within
a category by performing the following:
1. Turn the P-TYPE LIST knob. TYPE and a PTY will
2. Select a category by turning the P-TYPE LIST knob.
3. Once the desired category is displayed, press either
SCAN arrow, and the radio will begin scanning
within your chosen category.
4.
Press wither SCAN arrow again to stop scanning.
appear on the display.
BAND (Alternate Frequency): Alternate frequency
allows the radio to switch to a stronger station with the
same program type. Press and hold BAND for two
seconds to turn alternate frequency on. AF ON
will appear on the display. The radio may switch to
stronger stations. Press and hold BAND again for two
seconds to turn alternate frequency off. AF OFF
will appear on the display. The radio will not switch to
other stations.
This function does not apply for XMTM or DAB.
Setting Preset PTYs (RDS Only)
The six numbered pushbuttons let you return to your
favorite PTYs. These buttons have factory PTY presets.
You can set up to 12 PTYs (six FM1 and six FM2) by
performing the following steps:
1. Press BAND to select FMI or FM2.
2. Turn the P-TYPE LIST knob. TYPE and a PTY will
3. Turn the P-TYPE LIST knob to select a PTY.
appear on the display.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the PTY you set will return.
5. Repeat the steps for each pushbutton.
RDS and DAB Messages
ALERT!: Alert warns of local or national emergencies.
When an alert announcement comes on the current
radio station, ALERT! will appear on the display. You will
hear the announcement, even if the volume is muted
or a compact disc is playing. If the compact disc player
is playing, play will stop during the announcement.
You will not be able to turn off alert announcements.
ALERT! will not be affected by tests of the emergency
broadcast system. This feature is not supported by
all RDS stations.
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