2002 GMC ENVOY Owner's Manual

3-34
AUTO VOL: Your system has a feature called
automatic volume. With this feature, 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 MIN, MED, MAX or OFF.
Each choice allows for more volume compensation at
faster vehicle speeds. Then, as you drive, automatic
volume automatically increases the volume, as
necessary, to overcome noise at any particular speed.
The volume level should always sound the same to you
as you drive. If you don't want to use automatic volume,
select OFF.
If your vehicle has the Bose radio, your audio system
monitors the noise inside your vehicle. Then,
automatically adjusts the volume so that it always
sounds the same to you. To use automatic volume, press
the AUTO VOL button until AVOL ON appears on the
display. To turn automatic volume off, press the AUTO
VOL button until AVOL OFF appears on the display.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE RCL P
-TYPE: Turn this control to select
radio stations.

SEEK SCAN: To seek, press the right or left
arrow briefly to go to the next or previous station and
stay there. The sound will mute while seeking.
To scan, press and hold either SEEK SCAN arrow for
two seconds until SC appears on the display and you
hear a beep. Use scan to listen to stations for a few
seconds. The radio will go to a station, stop for a few
seconds, then go on to the next station. Press either
SEEK SCAN arrow again to stop scanning. If you press
SEEK SCAN for more than four seconds, the radio
will change to preset scan mode. The sound will mute
while scanning.
To scan your preset pushbuttons, press and hold either
SEEK SCAN arrow for more than four seconds,
PRESET SCAN will appear on the display. You will
hear a double beep and the P will blink with the preset
number. Use PRESET SCAN to listen to each of your
preset stations for a few seconds. The radio will go to
a preset station stored on your pushbuttons, stop for a
few seconds, then go on to the next preset station.
Press either SEEK SCAN arrow again to stop
scanning presets.

3-35
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 the band.
3. Tune in the desired station.
4. Press AUTO EQ to select the equalization that best
suits the type of station selected.
5. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the station you set will return
and the equalization that you selected will also be
automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.Setting the Tone (Bass/Treble)
AUDIO: To set the bass, press the AUDIO control until
BASS appears on the display. Turn the control to
increase or decrease bass. When you use this control, the
radio's tone setting will switch to custom.
To set the bass to the middle position, select BASS and
press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero. To
set all tone and speaker controls to the middle position,
press and hold the AUDIO control when no tone or
speaker control is active. The radio will produce one
beep and CENTERED will appear on the display.
To set the midrange, press the AUDIO control until MID
appears on the display. Turn the control to increase or
decrease midrange. When you use this control, the
radio's tone setting will switch to custom.
To set the midrange to the middle position, select MID
and press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero.

3-36
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when no
tone or speaker control is active. The radio will produce
one beep and CENTERED will appear on the display.
To set the treble, press the AUDIO control until TREB
appears on the display. Turn the control to increase or
decrease treble. When you use this control, the radio's
tone setting will switch to custom. If a station is weak
or noisy, you may want to decrease the treble.
To set treble to the middle position, select TREB and
press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when no
tone or speaker control is active. The radio will produce
one beep and CENTERED will appear on the display.
AUTO EQ: This feature allows you to choose preset
bass, midrange and treble equalization settings designed
for country, jazz, talk, pop, rock and classical stations.
The setting last chosen will appear on the display when
you first press AUTO EQ. Each time you press this
button, another setting will appear on the display and
AUTO EQ will switch to one of the preset settings
previously listed.To return to the manual mode (CUSTOM), press the
AUTO EQ button until CUSTOM appears on the
display. Then you will be able to manually adjust the
bass, midrange and treble using the AUDIO button. To
find out how to do this, see Setting the Tone following.
If your vehicle has the Bose radio, your audio system
allows you to choose from four different equalization
settings: talk, driver, normal and spatial. These settings
can be used while listening to the radio or the CD player.
Press the AUTO EQ button to scroll through your
choices. Select TALK when listening to non
-musical
material such as news, talk shows, sports broadcasts and
books on tape. This settings makes spoken words sound
very clear. Select DRIVER to give the driver the best
possible sound qualities. Select NORMAL to enhance
the stereo effect. Select SPATIAL to make the listening
space seem larger. When AUTO EQ NORMAL is
displayed, the system will provide the best overall Bose
performance. The radio saves separate AUTO EQ
settings for each preset and source.

3-37
Adjusting the Speakers
AUDIO (Balance/Fade): The AUDIO control adjusts
balance and fade. To adjust balance, press the AUDIO
control until BAL appears on the display. Turn the
control to adjust the sound to the left or right speakers.
The middle position balances the sound between
the speakers.
To adjust fade, press and hold the AUDIO control until
FAD appears on the display. Turn the control to adjust
the sound to the front or rear speakers. The middle
position balances the sound between the speakers.
To set the balance and fade to the middle position, select
balance or fade and press and hold the AUDIO control.
The radio will beep once and will set the display level to
the middle position.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when tone
or speaker controls are not active. The radio will
produce one beep and CENTERED will appear on
the display.Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS mode gives you many useful new
features. With RDS, the 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 for use on FM stations
which broadcast RDS information. The RDS features of
your radio rely upon 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, please 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.

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P-TYPE: This button is used to turn on and off
Program Type (PTY) selections. PTY and the light next
to the button will turn on. The last selected PTY will
appear on the display for five seconds.
Turn the TUNE RCL P
-TYPE control to select the PTY
you want to listen to. Press the SEEK SCAN arrows to
find radio stations for the PTY you want to listen to.
The last PTY selected will be used for seek or scan
modes. If a station with the selected PTY is not found,
NONE FOUND will appear on the display. If both
P
-TYPE and TRAF are on, the radio will search
for stations with traffic announcements and the
selected PTY.
To use the P
-TYPE interrupt feature, press and hold
the P
-TYPE button until you hear a beep on the
PTY you want to interrupt on. When you are listening
to a compact disc, the last selected RDS FM station
will interrupt play if that selected program type format
is broadcast.
AM FM: The AM FM button operates the alternate
frequency feature. 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.
Setting PTY Preset Stations
The six numbered pushbuttons let you return to your
favorite Program Types (PTYs). These buttons have
factory PTY presets. You can set up to 12 PTYs
(six FM1 and six FM2) by performing the
following steps:
1. Press AM FM to select FM1 or FM2.
2. Press P-TYPE, if it is not already on.
3. Turn the TUNE RCL P
-TYPE control to select
a PTY.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the PTY you set will return.
5. Repeat the steps for each pushbutton.

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Radio Announcements
(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 tuned
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.
INFO: If the current station has a message, INFO will
appear on the display. 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 see the parts
of the message faster than every three seconds, press this
button again. A new group of words will appear on the
display. Once the complete message has been displayed,
INFO will disappear from the display until another new
message is received.TRAF: Press this button to receive traffic
announcements. The traffic announcement brackets will
appear on the display. TRAF will appear on the display
if the tuned station broadcasts traffic announcements.
If the current tuned station does not broadcast traffic
announcements, the radio will seek to a station that
does. When the radio finds a station that broadcasts
traffic announcements, it will stop. If no station is found,
NONE FOUND will appear on the display.
When a traffic announcement comes on the tuned radio
station or a related network station, you will hear it,
even if the volume is muted or a compact disc is
playing. 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.

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Playing a Compact Disc
LOAD CD
: Press this button to load CDs into the
compact disc player. This compact disc player will
accommodate up to six discs.
To insert one disc do the following:
1. Turn the ignition on.
2. Press and release the LOAD CD button.
3. Wait for the light, located to the right of the slot, to
turn green.
4. Load a disc. Insert a disc partway into the slot, label
side up. The player will pull the disc in.
When the disc is inserted, the CD symbol will be
displayed. If you select an EQ setting for your disc,
it will be activated each time you play a disc.
If the radio is on or off, the disc will begin to
play automatically.
To insert multiple discs do the following:
1. Turn the ignition on.
2. Press and hold the LOAD CD button for
two seconds.
You will then hear a beep and the light, located to the
right of the slot, will begin to flash.3. Once the light stops flashing and turns green, load a
disc. Insert a disc partway into the slot, label side up.
The player will pull the disc in.
Once the disc is loaded, the light will begin flashing
again. Once the light stops flashing and turns green
you can then load another disc. The disc player takes
up to six discs. Do not try to load more than six.
When a disc is inserted, the CD symbol will be
displayed. If more than one disc has been loaded, a
number for each disc will be displayed. If you select
an EQ setting for your disc, it will be activated each
time you play a disc.
If the radio is on or off, the last disc loaded will
begin to play automatically.
4. To load more than one disc but less than six,
complete Steps 1, 2 and 3. When you have finished
loading discs, with the radio on or off, press the
LOAD CD button to cancel the loading function.
The radio will begin to play the last CD loaded.
As each new track starts to play, the track number will
appear on the display.

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Playing a Specific Loaded Compact Disc
For every CD loaded, a number will appear on the radio
display. To play a specific CD, first press the CD AUX
button to start playing a CD. Then press the numbered
pushbutton that corresponds to the CD you want to play.
A small bar will appear under the CD number that is
playing, and the track number will appear.
If an error appears on the radio display, see ªCompact
Disc Messagesº later in this section.
LOAD CD
: This button will eject a disc or discs, if
you have multiple discs loaded. To eject a disc or discs
from the disc player perform one of the following steps:

Press and release the LOAD CD eject button to eject
the disc that is currently playing, or

to eject all of the discs, press the LOAD CD eject
button for two seconds, you will hear a beep, and
the light will flash to let you know when a disc is
being ejected.
When the LOAD CD eject button is pressed, the
receiver will eject the disc and REMOVE CD will be
displayed. You can now remove the disc. If the disc
is not removed, after 25 seconds, the disc will be
automatically pulled back into the receiver.If you try to push the disc back into the receiver, before
the 25 second time period is complete, the receiver will
sense an error and will try to eject the disc several times
before stopping. Do not repeatedly press the LOAD CD
eject button to eject a disc after you have tried to push it
in manually. The receivers 25
-second eject timer will
reset at each press of eject, which will cause the receiver
to not eject the disc until the 25
-second time period
has elapsed.
Once the player stops and the disc is ejected, remove the
disc. After removing the disc, press the VOLUME PWR
control off and then on again. This will clear the
disc
-sensing feature and enable discs to be loaded into
the player again.

REV: Press and hold this button to reverse quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.
FWD : Press and hold this button to advance quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.