GMC Chevrolet Tahoe 2003 Manual page 269

To use the PTY interrupt feature, press and hold the
P-TYPE button until you hear a beep on the PTY you
want to interrupt with. When selected, an asterick will
appear beside that PTY on the display. You may select
multiple interrupts if desired. When you are listening to a
compact disc, the last selected RDS station will interrupt
play if that selected program type format is broadcast.
SCAN: You can also scan through the stations within a
category by performing the following:
1. Press the P-TYPE button. P-TYPE and the last
selected PTY will be displayed on the screen.
2. Select a category by turning the P-TYPE knob.
3. Once the desired category is displayed, press and
hold either SCAN arrow, and the radio will begin
scanning within your chosen category.
4. Press either SCAN arrow again to stop at a
particular station.
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. When
you turn the ignition off and then on again, the alternate
frequency feature will automatically be turned on.
This function does not apply for XM™.
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 FM1 or FM2.
2. Press the P-TYPE button. P-TYPE and the last
selected PTY will be displayed on the screen.
3. Select a category by turning the P-TYPE knob.
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 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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