GMC Chevrolet SSR 2003 Owner's Manual page 177

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 asterisk
will appear beside that PTY on the display. Select
multiple interrupts if desired. When listening to a CD,
the last selected RDS station will interrupt play if
that selected program type format is broadcast.
SCAN: Scan the stations within a PTY by performing
the following:
1. Press the P-TYPE button to activate program type
select mode. P-TYPE and the last selected PTY will
appear on the display.
2. Turn the P-TYPE knob to select a PTY.
3. Once the desired PTY is displayed, press and hold
either SCAN arrow, and the radio will begin
scanning the stations in the PTY.
4. Press either SCAN arrow to stop at a station.
If both P-TYPE and TRAF are on, the radio will scan
for stations with the selected PTY and traffic
announcements.
AM FM (Alternate Frequency): Alternate frequency
allows the radio to switch to a stronger station with the
same program type. To turn alternate frequency on,
press and hold AM FM for two seconds. AF ON
will appear on the display. The radio may switch to
stations with a stronger frequency.
To turn alternate frequency off, press and hold BAND
again for two seconds. AF OFF will appear on the
display. The radio will not switch to other stations.
Setting Preset PTYs
These pushbuttons have factory PTY presets. Up to
12 PTYs (six FM1 and six FM2), can be programmed on
the six numbered pushbuttons, by performing the
following steps:
1. Press AM FM to select FM1 or FM2.
2. Press the P-TYPE button to activate program type
select mode. P-TYPE and the last selected PTY will
appear on the display.
3. Turn the P-TYPE knob to select a PTY.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever that numbered
pushbutton is pressed, the PTY that was set will
return.
5. Repeat the steps for each pushbutton.
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