radio GMC SONOMA 2002 Owner's Guide

3-22
SCV (Speed-Compensated Volume): With SCV, your
audio system adjusts automatically to make up for road
and wind noise as you drive. Set the volume at the
desired level. Turn the control ring behind the upper
knob clockwise to adjust the SCV. Each notch on the
control ring allows for more volume compensation at
faster vehicle speeds. Then, as you drive, SCV
automatically increases the volume, as necessary, to
overcome noise at any speed. The volume level should
always sound the same to you as you drive. If you don't
want to use SCV, turn the control all the way down.
RECALL: Pressing this button will display the station
being played or it will display the clock. Clock display
is available with the ignition turned off.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it. SEEK : Press the right or left arrow to seek to the
next station or previous station and stay there. The radio
will seek to stations with a strong signal only. The sound
will mute while seeking.
To scan stations, press and hold either SEEK arrow for
two seconds until SCAN appears on the display. The
radio will scan to a station, play for a few seconds, then
go on to the next station. Press either SEEK arrow again
to stop scanning. The radio will scan to stations with a
strong signal only. The sound will mute while scanning.
P.SCAN (Preset Scan): Press this button to scan
through your favorite stations stored on your
pushbuttons. P.SCAN will appear on the display. The
radio will scan to the first preset station stored on your
pushbuttons, play for a few seconds, then go on to the
next station. Press this button again or one of the
pushbuttons to stop scanning. The channel number
(P1 through P6) will appear with the frequency. The
radio will scan preset stations with a strong signal only.
The sound will mute while scanning.

3-23
Setting Preset Stations
The six numbered pushbuttons let you return to
your favorite stations. You can set up to 18 stations
(six AM, six FM1 and six FM2) by performing the
following steps:
1. Turn the radio on.
2. Press AM FM to select AM, FM1 or FM2.
3. Tune in the desired station.
4. Press AUTO TONE to select the setting you prefer.
5. Press and hold one of the six pushbuttons. The sound
will mute. When it returns, release the pushbutton.
Whenever you press that numbered pushbutton, the
station you set will return and the tone you selected
will be automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.Setting the Tone (Bass/Treble)
BASS: Press this knob lightly so it extends. Turn the
knob clockwise to increase bass and counterclockwise to
decrease bass.
TREB (Treble): Press this knob lightly so it extends.
Turn the knob clockwise to increase treble and
counterclockwise to decrease treble. If a station is weak
or noisy, you may want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.
AUTO TONE: This feature allows you to choose
bass and treble equalization settings designed for
country/western, jazz, talk, pop, rock and
classical stations.
Each time you press the AUTO TONE button, this
feature will switch to one of these program types.
To return the bass and treble to the manual mode, either
press and release the AUTO TONE button until the
display goes blank or press and release the BASS or
TREB knobs and turn them until the display goes blank.

3-25
RECALL: Press this button to see what track is playing.
Press it again within five seconds to see how long the
CD has been playing that track. Elapsed time is
displayed in minutes and seconds. The track number
will also appear when a new track begins to play. Press
this button again to return to the time display.
AM FM: Press this button to listen to the radio when
playing a CD. The CD symbol will still display but the
word CD will be replaced with either AM, FM1 or FM2.
If the radio is turned off, the disc stays in the player and
will resume playing at the point where it stopped.
CD AUX (Auxiliary): Press this button to play a CD
when listening to the radio. When a disc is playing,
the letters CD and the CD symbol will appear on the
display. If the radio is turned off, the disc stays in
the player and will resume playing at the point where
it stopped.
EJECT: Press this button to eject the disc from the
player and play the radio. When the same or a new disc
is inserted, the disc will start playing on track one. If a
compact disc is left sitting in the opening for more than
a few seconds, the player will pull the CD back in. The
radio will continue playing. When the ignition is off,
press this button to load a CD.Compact Disc Messages
ERR (Error): If this message appears and the disc
comes out, it could be for one of the following reasons:

If you're driving on a very rough road. When the
road becomes smooth the disc should play.

If it's very hot. When the temperature returns to
normal, the disc should play.

The disc is upside down.

It is dirty, scratched or wet.

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.
Press RECALL to make ERR go off of the display.
If any error occurs repeatedly or if an error can't be
corrected, contact your dealer.

3-26 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
PWR (Power): Press this knob to turn the system on
and off.
VOL (Volume): Turn the knob clockwise to increase
volume. Turn it counterclockwise to decrease volume.
AUTO VOL (Automatic Volume): With automatic
volume, your audio system adjusts automatically to
make up for road and wind noise as you drive.
Set the volume at the desired level. Press this button to
select LOW, MEDIUM or HIGH. AVOL will appear on
the display. The volume level should always sound the
same to you as you drive. Each higher volume setting
allows for more volume compensation at faster vehicle
speeds. Then as you drive, automatic volume increases
the volume as necessary to overcome noise at any speed.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
automatic volume, select OFF.
DISP (Display): Press this knob when the ignition is off
to display the clock.

3-27
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Turn this knob to choose radio stations.
SEEK : Press the right or left arrow to seek to the
next or previous station and stay there. The radio will
seek to stations with a strong signal only. The sound will
mute while seeking.
PSCAN (Preset Scan): Press and hold one of the
arrows for more than two seconds and the radio will
produce one beep. The radio will scan to the first preset
station stored on your pushbuttons, play for a few
seconds and flash the station frequency, then go on to
the next preset station. Press one of the arrows or one of
the pushbuttons again to stop scanning. SCAN will be
displayed whenever the tuner is in the preset scan mode.
The channel number (P1 through P6) will appear with
the frequency. In FM mode, this function will scan
through the current band such as FM1 or FM2. The
radio will scan preset stations with a strong signal only.
The sound will mute while scanning.Setting Preset Stations
The six numbered pushbuttons let you return to
your favorite stations. You can set up to 18 stations
(six AM, six FM1 and six FM2) by performing the
following steps:
1. Turn the radio on.
2. Press AM FM to select AM, FM1 or FM2.
3. Tune in the desired station.
4. Press AUTO TONE to choose the bass and treble
equalization that best suits the type of station you are
listening to.
5. Press and hold one of the six numbered pushbuttons.
The radio will produce one beep. Whenever you
press that numbered pushbutton, the station you set
will return and the bass and treble equalization that
you selected will also be automatically selected for
that pushbutton.
6. Repeat the steps for each pushbutton.

3-28
Setting the Tone (Bass/Treble)
AUDIO: Push and release the AUDIO knob until
BASS or TREB appears on the display. Turn the knob
clockwise or counterclockwise to increase or decrease.
The display will show the bass or treble level. If a
station is weak or noisy, you may want to decrease
the treble.
To adjust bass and treble to the middle position, push
and hold the AUDIO knob. The radio will produce one
beep and adjust the display level to the middle position.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker control is displayed. You will hear one beep
and the radio will display ALL. The bass and treble will
be adjusted to the middle position.
AUTO TONE: This feature allows you to choose
preset bass and treble equalization settings designed
for country/western, jazz, talk, pop, rock and
classical stations.
Each time you press the AUTO TONE button, this
feature will switch to one of these program types.
To return the bass and treble to the manual mode,
push and release the AUDIO knob until the display
goes blank.Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right and
left speakers, push and release the AUDIO knob until
BAL appears on the display. Turn the knob clockwise to
move the sound to the right speakers and
counterclockwise to move the sound to the left speakers.
To adjust the fade, push and release the AUDIO knob
until FADE appears on the display. Turn the knob
clockwise to move the sound to the front speakers
and counterclockwise to move the sound to the
rear speakers.
To adjust the balance and fade to the middle position,
push the AUDIO knob, then push it again and hold it
until you hear one beep. The balance and fade will be
adjusted to the middle position and the display will
show the speaker balance.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker control is displayed. The radio will produce
one beep and display ALL with the level display in the
middle position.

3-29
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS is a system that receives data along
with the audio of the FM station you are currently tuned
to. You can use RDS to display program information
and to control your radio. With RDS your radio can do
the following:

Seek only to stations with the types of programs you
want to listen to,

seek to stations with traffic announcements,

receive announcements concerning local and
national emergencies, and

receive and display messages from radio stations.
RDS features are only available on FM stations which
broadcast RDS information. The RDS features of your
radio rely on receiving specific RDS information from
these stations. These features will only work when the
RDS 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.When you are tuned to an RDS station, the station name
will appear on the display, instead of the frequency.
Most RDS stations provide their station name, the time
of day and a Program Type (PTY) for their current
programming. Some stations also provide the name of
the current program.
Finding RDS Stations
To find RDS stations, perform the following steps:
1. Press the SEEK TYPE button or turn the P
-TYPE
LIST knob to display the program type list.
2. Turn the knob either clockwise or counterclockwise
to select a program type. The list is alphabetical. If
you select ANY TYPE your radio will seek to the
first PTY available.
3. Press the SEEK TYPE button to activate search.
DISP (Display): Press this knob to change what appears
on the display while using RDS. Pressing this knob will
also display an RDS station frequency or program type
when the radio is on. The display options are station
name, station frequency, PTY and the name of the
program (if available). Pressing and holding this knob
will activate the RDS default display.

3-30
Finding a PTY Preset Station
P
-TYPE LIST (Program Type): Turn this knob
clockwise or counterclockwise to select the Program
Type (PTY) you want to listen to. TYPE and a PTY will
appear on the display. Press the SEEK TYPE button and
the radio will seek to the first RDS broadcaster of the
selected program type. 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.
AM FM (Alternate Frequency): Alternate frequency
allows the radio to switch to a stronger station with the
same program type. Press and hold AM FM for
two seconds to turn alternate frequency on. AF ON will
appear on the display. The radio may switch to stronger
stations. Press and hold AM FM again for two seconds
to turn alternate frequency off. AF OFF will appear on
the display. The radio will not switch to other stations.
When you turn the ignition off and then on again,
the alternate frequency feature will automatically be
turned on.SEEK TYPE: Press this button to go to a station with
the last selected PTY; TYPE and the last selected PTY
will appear on the display, if it is not already showing.
Press SEEK TYPE a second time to seek. If a station
with the selected PTY is not found, the radio will return
to the original station and display NONE.
RDS Messages
ALERT!: Alert warns of national or local emergencies.
You will not be able to turn off alert announcements.
ALERT! appears on the display when an alert
announcement plays. When an alert announcement
comes on the current radio station, you will hear it,
even if the volume is muted or a compact disc is
playing. If the compact disc player is playing, play will
stop for the announcement and resume when the
announcement is finished.
This function will only work during actual emergency
broadcasts, and will not work during tests of the
emergency broadcast system. This feature is not
supported by all RDS stations.

3-31
INFO (Information): If the current station has a
message, the information symbol will appear on the
display. These text messages are from the RDS
broadcaster to the listening public and may be general
information such as artist and song title, call in phone
numbers, etc. Press this button to see the message. If the
whole message does not appear on the display, parts of
the message will appear every three seconds until the
message is completed. To scroll through the message at
your own speed, press the INFO button again for less
than one second. A new group of words will appear on
the display. 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 until a new message is received or a different
station is tuned to.
TRAF (Traffic): Press this button to receive traffic
announcements. If the current station does not broadcast
traffic announcements, the radio will seek to a station
that does. The traffic symbol will flash on the display.
When the radio finds a station that broadcasts traffic
announcements, it will stop. If no station is found, NO
TRAF will appear on the display.Your radio can be programmed to interrupt the playback
of a CD or FM station by enabling the traffic interrupt
feature. Press the TRAF button once to seek to an RDS
station that supports the traffic interrupt feature if the
current station does not. The traffic symbol will flash on
the display when seeking for a station that supports
traffic interrupt. When the traffic interrupt feature is on,
TRAF will appear on the display.
When a traffic announcement comes on the current radio
station, you will hear it, even if the volume is muted or a
compact disc is playing. The traffic symbol and
TRAFFIC will appear on the display while the traffic
announcement plays. If the compact disc player was
being used, the compact disc will stay in the player and
resume play at the point where it stopped.
Radio Messages
CAL ERR (Calibration Error): This message is
displayed when the radio has not been calibrated
properly for the vehicle. You must return to the
dealership for service.
LOCKED: This message is displayed when the
THEFTLOCK

system has locked up. You must return
to the dealership for service.
If any error occurs repeatedly or if an error can't be
corrected, contact your dealer.

3-33
DISP (Display): Press this knob to see how long the
current track has been playing. ET and the elapsed time
will appear on the display. 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 for two seconds. The radio will produce one beep.
AM FM: Press this button to listen to the radio
when a CD is playing. The CD will stop but remain in
the player.
CD AUX (Auxiliary): Press this button to play a CD
when listening to the radio. The inactive CD will remain
safely inside the radio for future listening.
EJT (Eject): Press this button to stop a CD when it
is playing or to eject a CD when it is not playing. Eject
may be activated with either the ignition or radio off.
CDs may be loaded with the radio and ignition off if this
button is pressed first.Compact Disc Messages
If the disc comes out, it could be for one of the
following reasons:

If you're driving on a very rough road. When the
road becomes smooth the disc should play.

If it's very hot. When the temperature returns to
normal, the disc should play.

The disc is upside down.

It is dirty, scratched or wet.

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.