2002 GMC SONOMA radio

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SEEK : To seek, press the left arrow while playing
a CD to go to the start of the current track, if more than
ten seconds have passed. Press the right arrow to go to
the next track. If you press the button more than once,
the player will continue moving backward or forward
through the disc.


SCAN : To scan one disc, press and hold either
SCAN arrow for more than two seconds until SCAN
appears on the display and you hear a beep. Use this
feature to listen to each track of the currently selected
disc for ten seconds. The sound will mute while
scanning. SCAN will appear on the display. Press either
SCAN arrow again, to stop scanning.
To scan all loaded discs, press and hold either SCAN
arrow for more than four seconds until DISC SCAN
appears on the display and you hear a beep. Use this
feature to listen to the first track, for ten seconds for
each disc loaded. The sound will mute while scanning to
the next track. DISC SCAN will appear on the display.
Press either SCAN arrow again, to stop scanning.P
-TYPE (Program Type): Press this knob to see
how long the current track has been playing. To change
what is normally shown on the display (track or elapsed
time), press the knob until you see the display you want,
then hold the knob until the display flashes.
AM FM: Press this button to play the radio when a
disc(s) is in the player.
Using Song List Mode
The integrated six
-disc CD changer has a feature called
song list. This feature is capable of saving 20 track
selections.
To save tracks into the song list feature, perform the
following steps:
1. Turn the disc player on and load it with at least one
disc. See ªLOAD CDº listed previously in this
section for more information.
2. Check to see that the disc changer is not in song list
mode. S
-LIST should not appear in the display. If
S
-LIST is present, press the SONG LIST button to
turn it off.

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To delete the entire song list, perform the
following steps:
1. Turn the disc player on.
2. Press the SONG LIST button to turn song list on.
S
-LIST will appear on the display.
3. Press and hold the SONG LIST button for more than
four seconds. A beep will be heard, followed by
two beeps after two seconds and a final beep will be
heard after four seconds. S
-LIST EMPTY will
appear on the display indicating that the song list has
been deleted.
If a disc is ejected, and the song list contains saved
tracks from that disc, those tracks are automatically
deleted from the song list. Any tracks saved to the song
list again are added to the bottom of the list.
To end song list mode, press the SONG LIST button.
One beep will be heard and S
-LIST will be removed
from the display.Compact Disc Messages
CHECK CD: If this message appears on the radio
display, it could be due to one of the following reasons:

The road is too rough. The disc should play when the
road is smoother.

The disc is dirty, scratched, wet or upside down.

The air is very humid. If so, wait about an hour and
try again.
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 can't 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.

3-56 Remote Cassette Tape Player (If Equipped)
If your vehicle has this feature it is located in the center
console extension.
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.
To load a cassette tape with the ignition off, first press
EJECT on the remote player. Then, insert the cassette
tape. The tape will play if the ignition is on but the radio
is off.Once the tape is playing, use the control knobs for
VOL, AUTO TONE, BAL, FADE, BASS and TREB
just as you do for the radio. A lighted tape symbol
shows when a cassette tape is in the player. A lighted
arrow will also appear and show the direction of play
when a tape is active.
The player automatically senses if the cassette tape is
metal or CrO
2 and adjusts for best playback sound.
Anytime a cassette tape is inserted, the top side is
selected for play first.
Primary Radio Controls
The following functions are controlled by the
main radio:
1 PREV (Previous): Press this pushbutton or the left
SEEK arrow (in the opposite direction that the lighted
tape direction arrow points) to search for the previous
selection. A minimum three
-second blank gap is needed
for the player to stop at the beginning of the selection.
The tape direction arrow will blink during the SEEK
operation and the sound is muted in this mode.

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3 NEXT: Press this pushbutton or the right SEEK arrow
(in the direction that the lighted tape direction arrow
points) to search for the next selection. The tape
direction arrow will blink during SEEK operation and
the sound is muted in this mode.
REV 4 (Reverse): Press this pushbutton to rapidly
reverse the tape. The tape will rapidly reverse to the
beginning of the cassette or until you press this
pushbutton again. The radio plays the last selected
station during reverse operation.
5: Press this pushbutton to turn Dolby NR on and
off. Dolby NR is active when a tape is inserted in the
remote cassette. The double
-D symbol will appear on
the display.
Dolby Noise Reduction is manufactured under a license
from Dolby Laboratories Licensing Corporation. Dolby
and the double
-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
FWD 6 (Forward): Press this pushbutton to rapidly
advance the tape. The tape will rapidly advance to the
end of the cassette or until you press this pushbutton
again. The radio plays the last selected station during
forward operation.AM FM: Press this button to listen to the radio
when a tape is playing. The inactive tape will remain in
the player.
TAPE AUX (Auxiliary): Press this button to play a
tape when listening to the radio. The lighted arrow will
appear next to the symbol and show the direction of play
when a tape is active.
Remote Cassette Tape Player Controls
The following functions are controlled by the remote
cassette tape player:
PROG (Program): Press this button on the remote
player to go from one side of the tape to the other.
EJECT: Press this button on the remote player to
remove the tape. EJECT can be used with either the
ignition or radio off. Also, you must press EJECT before
loading a cassette with the radio off to allow loading.

3-58 Theft-Deterrent Feature (If Equipped)
THEFTLOCK
is designed to discourage theft of your
radio. It works by using a secret code to disable all radio
functions whenever battery power is removed.
The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.
When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.
Activating the Theft
-Deterrent Feature
The instructions which follow explain how to enter your
secret code to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
If you allow more than 15 seconds to elapse between
any steps, the radio automatically reverts to time and
you must start the procedure over at Step 4.1. Write down any three or four
-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
2. Turn the ignition to ACCESSORY or RUN.
3. Turn the radio off.
4. Press the 1 and 4 pushbuttons at the same time. Hold
them down until
--- shows on the display. Next you
will use the secret code number which you have
written down.
5. Press MN and 000 will appear on the display.
6. Press MN again to make the last two digits agree
with your code.
7. Press HR to make the first one or two digits agree
with your code.
8. Press AM FM after you have confirmed that the
code matches the secret code you have written down.
The display will show REP to let you know that you
need to repeat Steps 5 through 7 to confirm your
secret code.
9. Press AM FM and this time the display will show
SEC to let you know that your radio is secure. The
LED indicator by the volume knob will begin
flashing when the ignition is turned off.

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Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition on. LOC will appear on the display.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
with your code.
4. Press HR to make the first one or two digits agree
with your code.
5. Press AM FM after you have confirmed that the code
matches the secret code you have written down. The
display will show SEC, indicating the radio is now
operable and secure.
If you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
3. Press the 1 and 4 pushbuttons at the same time.
Hold them down until SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.
6. Press HR to make the first one or two digits agree
with your code.
7. Press AM FM after you have confirmed that the code
matches the secret code you have written down. The
display will show
---, indicating that the radio is no
longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio won't turn on and LOC will
appear on the display.
To unlock a secured radio, see ªUnlocking the
Theft
-Deterrent Feature After a Power Lossº earlier in
this section.

3-60 Theft-Deterrent Feature RDS Radios
(If Equipped)
THEFTLOCK
is designed to discourage theft of your
radio. The feature works automatically by learning a
portion of the Vehicle Identification Number (VIN).
If the radio is moved to a different vehicle, it will not
operate and LOCKED or LOC will be displayed.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK is armed.
With THEFTLOCK activated, your radio will not
operate if stolen.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble to reduce this noise if you ever get it.
FM Stereo
FM stereo will give you the best sound, but FM signals
will reach only about 10 to 40 miles (16 to 65 km). Tall
buildings or hills can interfere with FM signals, causing
the sound to come and go.

3-61 Tips About Your Audio System
Hearing damage from loud noise is almost undetectable
until it is too late. Your hearing can adapt to higher
volumes of sound. Sound that seems normal can be loud
and harmful to your hearing. Take precautions by
adjusting the volume control on your radio to a safe
sound level before your hearing adapts to it.
To help avoid hearing loss or damage do the following:
1. Adjust the volume control to the lowest setting.
2. Increase volume slowly until you hear comfortably
and clearly.NOTICE:
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two
-way radio -- be sure you can
add what you want. If you can, it's very
important to do it properly. Added sound
equipment may interfere with the operation of
your vehicle's engine, Delphi Electronics radio or
other systems, and even damage them. Your
vehicle's systems may interfere with the
operation of sound equipment that has been
added improperly.
So, before adding sound equipment, check with
your dealer and be sure to check federal rules
covering mobile radio and telephone units.