2002 GMC ENVOY ECO mode

3-29
While the tape is playing, use the volume, fade, balance,
treble, bass, 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 when the ignition is off, first
press EJT or DISP.
If an error appears on the display, see ªCassette Tape
Messagesº later in this section.
1 PREV: Press this button or the left SEEK PSCAN
arrow to go to the previous selection on the tape if the
selection has been playing for less than three seconds.
If the 1 PREV button or the left SEEK PSCAN arrow is
pressed and the current selection has been playing for
more than 13 seconds, it will go to the beginning of the
current selection. If the 1 PREV button or the left SEEK
PSCAN arrow is pressed and 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. SEEK and a ª
-1º will appear on the display while
the cassette player is in the previous mode. If 1 PREV or
the left SEEK PSCAN arrow is pressed additional times
or held, the radio will go to the displayed number of
previous selections up to ª9º. SEEK and a negative
number will appear on the display.Your tape must have at least three seconds of silence
between each selection for previous to work. The sound
will mute while seeking.
2 NEXT: Press this button to go to the next selection on
the tape. If you press the button more than once, the
player will continue moving forward through the tape.
SEEK and a positive number will appear on the display.
Your tape must have at least three seconds of silence
between each selection for next to work. To forward
through each selection press the right SEEK PSCAN
arrow. The sound will mute while seeking.
3 REV: Press this button to reverse the tape rapidly.
Press it again to return to playing speed. The radio will
play the last selected station while the tape reverses. The
station frequency and REV will appear on the display.
You may select stations during reverse operation by
using TUNE DISP and the SEEK PSCAN arrows.
4 FWD: Press this button to advance quickly to another
part of the tape. Press the button again to return to
playing speed. The radio will play the last selected
station while the tape advances. The station frequency
and FWD will appear on the display. You may select
stations during forward operation by using TUNE DISP
and the SEEK PSCAN arrows.

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.

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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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TUNE RCL P-TYPE: Press this control 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 control until you see the display you
want, then hold the control until the display flashes.
AM FM: Press this button to play the radio when a disc
is in the player.
Using Song List Mode
The integrated 6
-disc CD changer has a feature
called song list. This feature is capable of
saving 20 track selections.
To save tracks into SONG LIST perform the
following steps:
1. Turn the disc player on and load it with at least one
disc. See ªLOAD CDº mentioned previously 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 SONG LIST to turn it off.3. Select the desired disc by pressing the numbered
pushbutton and then use the SEEK SCAN right
arrow button to locate the track that you want to
save. The track will begin to play.
4. Press and hold the SONG LIST button for two
or more seconds to save the track into memory.
When SONG LIST is pressed a beep will be heard
immediately. After two seconds of pressing SONG
LIST continuously, two beeps will sound to confirm
that the track has been saved.
5. Repeat Steps 3 and 4 for saving other selections.
If you attempt to save more than 20 selections, S
-LIST
FULL will appear on the display.
To play the song list, press SONG LIST. One beep will
be heard and S
-LIST will appear on the display.
The recorded tracks will begin to play in the order that
they were saved.
You may seek through the song list by using the SEEK
SCAN arrows. Seeking past the last saved track will
return you to the first saved track.

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To delete tracks from SONG LIST perform the
following steps:
1. Turn the disc player on.
2. Press SONG LIST to turn song list on. S
-LIST will
appear on the display.
3. Press the SEEK SCAN arrows to select the desired
track to be deleted.
4. Press and hold the SONG LIST button for two
seconds. When pressing SONG LIST one beep will
be heard immediately. After two seconds of pressing
the SONG LIST button continuously, two beeps will
be heard to confirm that the track has been deleted.
After a track has been deleted, the remaining tracks are
moved up the list. When another track is added to the
song list, the tracks will be added to the end of the list.To delete the entire SONG LIST perform the
following steps:
1. Turn the disc player on.
2. Press SONG LIST to turn song list on. S-LIST will
appear on the display.
3. Press and hold SONG LIST 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.
To end SONG LIST mode, press the SONG LIST
button. One beep will be heard and S
-LIST will be
removed from the display.

3-53
COMP/AUDIO (COMP) Compression: Press and
release this button to display the current compression
displayed on the screen. Press this button again to
select the next compression state. Three compression
states are available including minimum, standard and
off. The compression feature only functions on AC3
(Dolby Digital) encoded DVD video discs.
Press and hold this button to see if the DVD playing
has optional audio tracks, such as different languages
or commentaries. Press and release to change selections.
INPUT/TITLE DVD AUX (Auxiliary): Press and
release this button to switch between the auxiliary input
device and the DVD player.
Press and hold this button to see a display of the DVD's
titles. Press and release to change the titles available.
RTN (Return): When a DVD menu is active and
the return button is pressed, the selected option will be
disabled. This button could have different functions with
different discs.
SCREEN BRIGHTNESS: Press the plus or
minus symbol to increase or decrease the brightness
of the screen. This button can also be found above the
video screen.
LIGHT: Press this button to illuminate the keypad
for about eight seconds.Setup Menu
To access the setup menu, ensure a DVD disc is in the
player and the video is in stop mode. Press the menu key.
Once the menu is activated, use the UP, DOWN, RIGHT,
LEFT, and Enter buttons to navigate the screen.
The setup menu allows the user to select default preferences
for Menu Language, Subtitle Language, Audio Language,
TV Aspect, TV Mode, and Dynamic Range Compression.
Not all DVDs support all the feature defaults in the
setup menus. In the event a particular feature is not
supported, defaults will be provided by the DVD media.
Exit the setup menu by pressing the RETURN button
on the remote control. If you make changes to the
system setup defaults, the disc will resume play from
it's beginning and not where it previously left off.
Battery Replacement
To change the batteries, do the following:
1. Unclip the battery door located on the back of
the remote control.
2. Remove the batteries from the compartment.
3. Replace the two AA batteries. Make sure that
they are installed correctly.
If the remote control is to be stored for a long period
of time, remove the batteries and keep them in a cool,
dry place.

4-49 Electronically Controlled Air Suspension
System (If Equipped)
Your vehicle may be equipped with an electronically
controlled air suspension system that automatically
keeps your vehicle level as you load and unload. The
system includes a compressor, two height sensors and
two air springs supporting the rear axle.
The system also has an internal clock to prevent
overheating. If the system overheats, all leveling
function stops until the system cools down. During
this time, the indicator light on the air inflator system
will be flashing.
The ignition has to be on for the system to inflate, in
order to raise the vehicle to the standard ride height after
loading. The system can lower the vehicle to the
standard ride height after unloading with the ignition on
and also for up to 30 minutes after the ignition has been
turned off.
You may hear the compressor operating when you load
your vehicle, and periodically as the system adjusts the
vehicle to the standard ride height.
Load leveling will not function normally with the
inflator hose attached to the inflator outlet. Remove
the inflator hose from the outlet during loading
and unloading.Overload Protection
The air suspension system is equipped with overload
protection. Overload protection is designed to protect
the air suspension system, and it is an indicator to the
driver that the vehicle is overloaded. When the overload
protection mode is on, it will not allow damage to the
air compressor. However, do not overload the vehicle.
See ªLoading Your Vehicleº earlier in this section.
If the suspension remains at a low height, the rear axle
load has exceeded GAWR (Gross Axle Weight Rating).
When the overload protection mode is activated, the
compressor operates for about 30 seconds to one minute
without raising the vehicle depending on the amount
of overload. This will continue each time the ignition
is turned on until the rear axle load is reduced
below GAWR.
Indicator Light
The indicator light on the inflator switch in the rear
passenger compartment also serves as an indicator for
internal system error. If the indicator light is flashing
without the load leveling function or the inflator being
active, turn off the ignition. The next day turn on the
ignition and check the indicator light. The vehicle can
be driven with the light flashing, but if it is you should
have the vehicle serviced as soon as possible.