Cadillac 2008 XLR Owner's Manual page 272

PTY (Program Type) Presets: The six presets let you
return to your favorite PTYs. These presets have
factory PTY preset stations. See "RDS Program Type
(PTY) Selections" later in this section. You can set up to
12 PTYs, 6 FM 1 and 6 FM2. To save a PTY preset,
do the following:
1. Touch FM1 or FM2.
2. Touch RDS to enter the RDS menu.
3. Touch RDS ON/OFF to turn RDS on.
4. Touch PTY.
5. Touch SEL PTY and select the desired PTY from
the list.
6. Touch and hold one of the six presets for more
than two seconds until you hear a beep. Whenever
you touch that numbered preset for less than
two seconds, the PTY you set will return.
7. Repeat the steps for each preset.
Once you have stored a PTY for each of your preset
stations, you can recall a PTY preset by touching
the preset station for less than two seconds. Then use
TUNE/SEEK or SCAN to locate a station for that
PTY selection.
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ALERT: This type of announcement warns of national or
local emergencies. You will not be able to turn off alert
announcements. Alert announcements will come on
even if RDS mode is turned off. ALERT appears on the
display when an alert announcement plays. The audio
system uses TA volume during these announcements.
To increase volume, touch the VOL button on your
steering wheel or use the VOL up and down buttons
during the announcement. See "Voice Guidance Volume
Settings" under Setup Menu on page 4-13 for more
information. When an alert announcement comes on the
tuned radio station or a related network station, you will
hear it even if the volume is muted or a CD is playing.
If the audio system tunes to a related network station for
an alert announcement, it will return to the original station
when the announcement is finished. If the CD player is
playing, the player will stop for the announcement and
resume when the announcement is finished.