Cadillac 2003 CTS Owner's Manual page 239

TA (Traffic Announcement): This feature allows the
radio to receive traffic announcements even with the
volume muted, or when a CD or cassette tape is playing.
When TA is on, the radio will search for another station
with TA if the current station is not TA capable. During
the search, TA will flash on the display. Once a TA
station is found, TA will appear on the display and the
traffic announcement will be played. If no station
broadcasting traffic announcements is found, No Traffic
will appear on the display.
While a traffic announcement plays, the radio uses a
special type of volume called TA volume. To increase or
to decrease TA volume, turn the volume knob. TA
volume can not be turned completely down or off. To
turn off TA volume and stop TA announcements, you
must turn TA off.
When a traffic announcement comes on the current radio
station or a related network station, you will hear it,
even if the volume is muted or a cassette tape or
compact disc is playing. If the radio tunes to a related
network station for a traffic announcement, it will return
to the original station when the announcement is
finished. If the cassette tape or compact disc player was
being used, the tape or compact disc will stay in the
player and resume play at the point where it stopped.
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To turn TA on or off, perform the following steps:
1. Press the TUNE/SEL knob to enter the main menu.
2. Turn the TUNE/SEL knob until TRAFFIC
ANNOUNCE appears on the display.
3. Press the TUNE/SEL knob to select ON or OFF.
An X will appear in the box when TA is selected on.
4. Press the BACK button to exit the display. To return
to the original display keep pressing the BACK
button or wait for the display to time out.
MSG (Message): If the current RDS station has a
message, MSG will appear on the display. If the whole
message does not appear on the display, parts of the
message will appear every three seconds until the
message is completed. Once the complete message has
been displayed, MSG will disappear from the display
until another new MSG is received.
If you would like to display the message, perform the
following steps:
1. Press the TUNE/SEL knob to enter the main menu.
2. Turn the TUNE/SEL knob until RECALL RDS
MESSAGE appears on the display.
3. Press the TUNE/SEL knob. The last message
displayed will be displayed again.