2004 GMC SONOMA radio

Radio Data System (RDS)
Your audio system is equipped with a Radio Data
System (RDS). RDS features are available for use only
on FM stations that broadcast RDS information.
With RDS, your radio can do the following:
•Seek to stations broadcasting the selected type of
programming
•Receive announcements concerning local and
national emergencies
•Display messages from radio stations
•Seek to stations with traffic announcements
This system relies upon receiving specific information
from these stations and will only work when the
information is available. In rare cases, a radio station
may broadcast incorrect information that will cause
the radio features to work improperly. If this happens,
contact the radio station.
While you are tuned to an RDS station, the station
name or the call letters will appear on the display instead
of the frequency. RDS stations may also provide the
time of day, a program type (PTY) for current
programming, and the name of the program being
broadcast.
Finding a Program Type (PTY) Station
To select and find a desired PTY perform the
following:
1. Press the P-TYPE LIST knob to activate program
type select mode. TYPE and a PTY will appear on
the display.
2. Turn the P-TYPE LIST knob to select a PTY.
3. Once the desired PTY is displayed, press the SEEK
TYPE button to take you to the PTY’s first station.
4. If you want to go to another station within that PTY
and the PTY is displayed, press the SEEK TYPE
button once. If the PTY is not displayed, press
the SEEK TYPE button twice to display the PTY and
then to go to another station.
5. Press P-TYPE LIST to exit program type
select mode.
If PTY times out and is no longer on the display, go
back to Step 1.
If both PTY and TRAF are on, the radio will search for
stations with the selected PTY and traffic
announcements.
3-52

If the radio cannot find the desired program type, NONE
will appear on the display and the radio will return to
the last station you were listening to.
BAND (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 BAND for two seconds. AF ON will
appear on the display. The radio may switch to stronger
stations.
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.
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 cassette tape or CD is playing. If a cassette tape or
CD 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.
INFO (Information):If the current station has a
message, the information symbol will appear on the
display. Press this button to see the message. The
message may display the artist, song title, call in phone
numbers, etc.
If the whole message is not displayed, parts of the
message will appear every three seconds. To scroll
through the message at your own speed, press
the INFO button repeatedly. A new group of words will
appear on the display with each press. Once the
complete message has been displayed, the information
symbol will disappear from the display until another
new message is received. The old message can
be displayed by pressing the INFO button. You can
view an old message until a new message is received
or a different station is tuned to.
When a message is not available from a station, NO
INFO will appear on the display.
3-53

TRAF (Traffic):If TRAF appears on the display, the
tuned station broadcasts traffic announcements
and when a traffic announcement comes on the tuned
radio station you will hear it.
If the current tuned station does not broadcast traffic
announcements, press the TRAF button and the
radio will seek to a station that does. When the radio
finds a station that broadcasts traffic announcements,
the radio will stop and TRAF will be displayed. When a
traffic announcement comes on the tuned radio
station you will hear it. If no station is found, NO TRAF
will appear on the display.
If TRAF is on the display you can press the TRAF
button to turn off the traffic announcements.
Your radio will play the traffic announcement even if the
volume is muted or interrupt the play of a cassette
tape or CD if the last tuned station broadcasts traffic
announcements.
Radio Messages
CAL ERR (Calibration Error):Your audio system has
been calibrated for your vehicle from the factory. If
CAL ERR appears on the display it means that your
radio has not been configured properly for your vehicle
and must be returned to the dealer for service.LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. You must return
to the dealer for service.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer.
Playing a Cassette Tape
Your tape player is built to work best with tapes that are
up to 30 to 45 minutes long on each side. Tapes
longer than that are so thin they may not work well in
this player. The longer side with the tape visible should
face to the right. If the ignition is on, but the radio is
off, the tape can be inserted and will begin playing. A
tape symbol is shown on the display whenever a tape is
inserted. If you hear nothing or hear a garbled sound,
the tape may not be in squarely. Press EJT to remove
the tape and start over.
While the tape is playing, use the VOL, AUDIO, and
SEEK controls just as you do for the radio. The display
will show TAPE and an arrow showing which side of
the tape is playing.
If you want to insert a tape while the ignition is off, first
press the EJT button or the DISP knob.
If an error appears on the display, see “Cassette Tape
Messages” later in this section.
3-54

1 PREV (Previous):Your tape must have at least three
seconds of silence between each selection for previous
to work. Press this pushbutton to go to the previous
selection on the tape if the current selection has been
playing for less than three seconds. If pressed when the
current selection has been playing from 3 to 13 seconds,
it will go to the beginning of the previous selection or
the beginning of the current selection, depending upon
the position on the tape. If pressed when the current
selection has been playing for more than 13 seconds, it
will go to the beginning of the current selection.
SEEK and a negative number will appear on the display
while the cassette player is in the previous mode.
Pressing this pushbutton multiple times or holding it will
increase the number of selections to be searched
back, up to -9.
2 NEXT:Your tape must have at least three seconds of
silence between each selection for next to work.
Press this pushbutton to go to the next selection on the
tape. If you press this pushbutton more than once,
the player will continue moving forward through the tape.
SEEK and a positive number will appear on the
display.3 REV (Reverse):Press this pushbutton to reverse
quickly within the tape. Press it again to return to playing
speed. The radio will play while the tape reverses.
The station frequency and REV will appear on
the display. You may select stations during reverse
operation using TUNE, SEEK, or PSCAN.
4 FWD (Forward):Press this pushbutton to advance
quickly within the tape. Press it again to return to playing
speed. The radio will play while the tape advances.
The station frequency and FWD will appear on
the display. You may select stations during forward
operation by using TUNE, SEEK, or PSCAN.
5
XSIDE:Press this pushbutton to play the other side
of the tape.
qSEEKr:The right arrow is the same as the
NEXT pushbutton, and the left arrow is the same as the
PREV pushbutton. If the arrows are held or pressed
more than once, the player will continue moving forward
or backward through the tape. SEEK and a positive
or a negative number will appear on the display.
BAND:Press this button to listen to the radio when a
tape or a CD is playing. The inactive tape or CD
will remain safely inside the radio for future listening.
3-55

TAPE CD:Press this button to play a tape or a CD
when listening to the radio. The inactive tape or CD will
remain safely inside the radio for future listening.
ZEJT (Eject):Press this button, located to the right
of the cassette tape slot, to eject a tape. Eject may
be activated with the ignition or radio off. Cassette tapes
may be loaded with the radio off if this button is
pressed first.
Cassette Tape Messages
CHK TAPE (Check Tape):If this message appears on
the display, the tape will not play because of one of
the following reasons:
•The tape is tight and the player cannot turn the
tape hubs. Remove the tape. Hold the tape with
the open end down and try to turn the right
hub counterclockwise with a pencil. Turn the tape
over and repeat. If the hubs do not turn easily, your
tape may be damaged and should not be used in
the player. Try a new tape to make sure your player
is working properly.
•The tape is broken. Try a new tape.
•The tape is wrapped around the tape head. Attempt
to get the cassette out. Try a new tape.CLEAN:If this message appears on the display, the
cassette tape player needs to be cleaned. It will still play
tapes, but you should clean it as soon as possible to
prevent damage to the tapes and player. SeeCare
of Your Cassette Tape Player on page 3-74.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer. If you radio displays
an error message, write it down and provide it to your
dealer when reporting the problem.
CD Adapter Kits
It is possible to use a portable CD player adapter kit
with your cassette tape player after disabling the
tight/loose tape sensing feature on your tape player.
To disable the feature, use the following steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press and hold the TAPE CD button. The radio will
display READY and flash the cassette symbol.
4. Insert the adapter into the cassette slot. It will
power up the radio and begin playing.
The override feature will remain active until EJT is
pressed.
3-56

Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing. The
CD symbol will appear on the display. If you want to
insert a CD with the ignition off, first press the EJT
button or the DISP knob.
If you turn off the ignition or radio with a CD in the
player, it will stay in the player. When you turn on the
ignition or the radio, the CD will start playing, if it was the
last selected audio source.
As each new track starts to play, the track number will
appear on the display.
The CD player can play the smaller 8cm single CDs
with an adapter ring. Full-size CDs and the smaller CDs
are loaded in the same manner.
If playing a CD-R the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. You may experience an
increase in skipping, difficulty in finding tracks and/or
difficulty in loading and ejecting. If these problems occur
try a known good CD.
Do not add paper labels to CDs, they could get caught
in the CD player.
Do not play 3 inch CDs without a standard adapter CD.
If an error appears on the display, see “CD Messages”
later in this section.1 PREV (Previous):Press this pushbutton to go to the
beginning of the current track if it has been playing
for more than eight seconds. TRACK and the track
number will appear on the display. If you hold this
pushbutton or press it more than once, the player will
continue moving backward through the CD.
2 NEXT:Press this pushbutton to go to the next track.
TRACK and the track number will appear on the
display. If you hold this pushbutton or press it more than
once, the player will continue moving forward through
the CD.
3 REV (Reverse):Press and hold this pushbutton to
reverse quickly within a track. Press and hold this
pushbutton for less than two seconds to reverse at six
times the normal playing speed. Press and hold it
for more than two seconds to reverse at 17 times the
normal playing speed. Release it to play the passage.
The display will show ET and the elapsed time of
the track.
4 FWD (Forward):Press and hold this pushbutton to
advance quickly within a track. Press and hold this
pushbutton for less than two seconds to advance at six
times the normal playing speed. Press and hold it for
more than two seconds to advance at 17 times the
normal playing speed. Release it to play the passage.
The display will show ET and the elapsed time of
the track.
3-57

6 RDM (Random):Press this pushbutton to hear the
tracks in random, rather than sequential, order. RDM ON
will appear on the display. RDM T and the track
number will appear on the display when each track
starts to play. Press RDM again to turn off random play.
RDM OFF will appear on the display.
qSEEKr:Press the left arrow to go to the start of
the current or of the previous track. Press the right
arrow to go to the start of the next track. If you
hold either arrow or press it more than once, the player
will continue moving backward or forward through
the CD.
DISP (Display):Press this knob to see how long the
current track has been playing. ET and the elapsed time
of the track will appear on the display. To change the
default on the display (track or elapsed time), press the
DISP knob until you see the display you want, then
hold the knob for two seconds. The radio will produce
one beep and the selected display will now be the
default.
BAND:Press this button to listen to the radio when a
CD is playing. The inactive CD will remain safely
inside the radio for future listening.
TAPE CD):Press this button to play a CD when
listening to the radio.
ZEJT (Eject):Press this button to eject a CD. Eject
may be activated with either the ignition or radio off.
CDs may be loaded with the ignition and radio off if this
button is pressed first.
CD Messages
If CHECK CD appears on the display and the CD
comes out, it could be for one of the following reasons:
•It is very hot. When the temperature returns to
normal, the CD should play.
•You are driving on a very rough road. When the
road becomes smooth, the CD should play.
•The CD is dirty, scratched, wet, or upside down.
•The air is very humid. If so, wait about an hour and
try again.
•There may have been a problem while burning
the CD.
•The label may be caught in the CD player.
If the CD is not playing correctly, for any other reason,
try a known good CD.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer. If your radio displays an
error message, write it down and provide it to your
dealer when reporting the problem.
3-58

Radio with Six-Disc CD
Radio Data System (RDS)
Your audio system is equipped with a Radio Data
System (RDS). RDS features are available for use only
on FM stations that broadcast RDS information.With RDS, your radio can do the following:
•Seek to stations broadcasting the selected type of
programming
•Receive announcements concerning local and
national emergencies
•Display messages from radio stations
•Seek to stations with traffic announcements.
This system relies upon receiving specific information
from these stations and will only work when the
information is available. In rare cases, a radio station
may broadcast incorrect information that will cause
the radio features to work improperly. If this happens,
contact the radio station.
While you are tuned to an RDS station, the station
name or the call letters will appear on the display instead
of the frequency. RDS stations may also provide the
time of day, a program type (PTY) for current
programming, and the name of the program being
broadcast.
3-59