ECO mode GMC ENVOY 2002 User Guide

2-92
DIC Operation and Displays
The DIC comes on when the ignition is on. After a short
delay the DIC will display the current driver and the
information that was last displayed before the engine
was turned off.
If a problem is detected, a warning message will
appear on the display. Pressing the select button will
acknowledge any current warning or service messages.
The DIC has different modes which can be accessed by
pressing the four buttons on the DIC. These buttons are
trip information, fuel information, personalization and
select. The button functions are detailed in the following.
Trip Information Button
Use the trip information button to scroll through the
odometer, TRIP A, TRIP B and TIMER.
Odometer
Press the trip information button until the odometer
appears on the display. This shows the total distance the
vehicle has been driven in either miles or kilometers.
Pressing the reset stem located on the instrument cluster
with the vehicle off will also display the odometer.Trip A and Trip B
Press the trip information button until TRIP A or TRIP B
is displayed. This shows the current distance traveled
since the last reset for each trip odometer in either miles
or kilometers. Both odometers can be used at the
same time.
Each trip odometer can be reset to zero separately by
pressing select while the desired trip odometer is
displayed. You can also reset the trip odometers with the
reset stem on the cluster. If you press and hold the reset
stem for four seconds, the display will show the distance
traveled since the last ignition cycle.
Timer
The DIC can be used as a stopwatch. Press the select
button while TIMER is displayed to start the timer. The
display will show the amount of time that has passed
since the timer was last reset (not including time the
ignition is off). Time will continue to be counted as long
as the ignition is on, even if another display is being
shown on the DIC. The timer will record up to 99 hours,
59 minutes and 59 seconds (99:59:59) after which the
display will roll back to zero.
To stop the counting of time, press the select button
briefly while TIMER is displayed.
To reset the timer to zero, press and hold the select
button while TIMER is displayed.

3-5
Fan Switch
The switch with the fan symbol allows you to manually
adjust the fan speed. Press the up arrow to increase fan
speed and the down arrow to decrease fan speed.
MODE Button
Press this button to manually select the air delivery
mode to the floor, panel or windshield outlets. The
system will stay in the selected mode until the MODE
button is pushed again or the AUTO button is pushed.
Display
In full AUTO mode, the automatic climate control
system display will show the outside temperature,
labeled EXT for external temperature, and AUTO. If
you press the MODE button to select an air delivery
mode, the display will change to also show you the
current system mode. If you press the up or down
arrows on the fan switch, the display will change to
show the selected fan speed. After five seconds, the
display will change to show the EXT temperature and
the selected manual setting.Automatic Operation
Press the AUTO button to set the system to
automatically control the air delivery mode, fan speed,
air temperature and recirculation operations. Whenever
you press AUTO, the display will change to show the
current driver's set temperature, automatic air delivery
mode and fan speed. Press the AUTO button again
within five seconds and the display will show the
passenger's set temperature. After five seconds the
display will change to the EXT (external) temperature
outside the vehicle.
When AUTO is selected, the air conditioning operation
and air inlet will be automatically controlled. The air
conditioning compressor will run when outside
temperature is over approximately 40
F (4
C).
The air inlet will normally be set to outside air. If it's
hot outside, the air inlet will automatically switch to
recirculated inside air to help quickly cool down
your vehicle.

3-7
(Recirculation): Press this button to limit the
amount of outside air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle and for maximum air conditioning performance
in hot weather. Press this button again to allow outside
air to enter the vehicle.
If you select recirculation while in defrost, defog or
floor, the light on the button will flash and go out to let
you know this is not allowed. This is to prevent fogging.
When the weather is cool or damp, operating the system
in recirculation for extended periods of time may cause
fogging of the vehicle's windows. To clear the fog,
select either defog or FRONT defrost. Be sure A/C OFF
is not selected to allow the air conditioning compressor
to run automatically and help dehumidify the air.
(Air Conditioning): Press this button to turn the
air conditioning compressor on and off. When air
conditioning is selected or in AUTO mode, the system
will run the air conditioning automatically to cool and
dehumidify the air entering the vehicle. If you select
A/C OFF while in FRONT defrost, the A/C OFF text
will flash to let you know this is not allowed. This is to
prevent fogging.
FRONT (Defrost): Press this button to defrost the
windshield. The system will automatically control the
fan speed if you select defrost from AUTO. If the
outside temperature is 40
F (4
C) or warmer, your air
conditioning compressor will automatically run to help
dehumidify the air and dry the windshield.
Air Conditioning
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
If your vehicle has the manual system, for quick
cool
-down on very hot days, use the airflow from the
panel outlets, press recirculation and air conditioning
with the temperature control in the blue area. If this max
air conditioning setting is used for long periods of time,
the air in your vehicle may become too cold and dry.
For normal cooling on hot days, use air conditioning
without recirculation with the temperature control in the
blue area.

3-13
Audio Systems
Your audio system has been designed to operate easily
and give years of listening pleasure. You will get the
most enjoyment out of it if you acquaint yourself with it
first. Find out what your audio system can do and how
to operate all its controls, to be sure you're getting the
most out of the advanced engineering that went into it.
Setting the Clock
Press and hold the HR or MN buttons, located below the
tune knob, for two seconds. Then press and hold HR
until the correct hour appears. AM or PM will appear on
the display. Press and hold MN until the correct minute
appears. The clock may be set with the ignition on or
off. The clock symbol will appear on the display in
time
-set mode.
To set the clock to the time of an FM station
broadcasting Radio Data System (RDS) information,
press and hold HR and MN at the same time for two
seconds until UPDATED and the clock symbol appear
on the display. If the time is not available from the
station, NO UPDAT will appear on the display instead.
RDS clock time is broadcast once a minute. Once you
have tuned to an RDS broadcast station, it may take a
few minutes before pressing and holding the HR MN
buttons will result in an update to the clock time.
AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control
Playing the Radio
VOL PWR: Press this control to turn the system on and
off. Turn this control clockwise to increase volume.
Turn it counterclockwise to decrease volume.
AUTO VOL: Your system has a feature called
Speed
-Compensated Volume (SCV). With SCV, your
audio system adjusts automatically to make up for road
and wind noise as you drive.

3-14
Set the volume at the desired level. Press AUTO VOL to
adjust the SCV. AVOL will appear on the display. Each
time you press AUTO VOL, another volume setting
(LOW, MEDIUM, HIGH or OFF) will appear on the
display. The volume level should always sound the
same to you as you drive. Each volume setting allows
for more volume compensation at faster vehicle speeds.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
SCV, select OFF.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE DISP: Turn this control to choose radio stations.
Pressing this control will also display an RDS station
frequency or program type when the radio is on.
Pressing this control when the ignition is off will display
the clock.SEEK PSCAN
: To seek, press the right arrow to
tune to the next station and the left arrow to tune to the
previous station and stay there.
To scan your preset stations, press and hold one of the
arrows for more than two seconds. The radio will
produce one beep. Use preset scan to listen to each of
your favorite stations stored on your pushbuttons for a
few seconds. The radio will scan through each of the
stations stored on your pushbuttons, except those
stations with weak reception. 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.

3-23
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection.
TUNE DISP: Turn this control to choose radio stations.
Pressing this control will also display an RDS station
frequency or program type when the radio is on.
Pressing this control when the ignition is off will display
the clock.
 SEEK PSCAN
: To seek, press the right arrow to
tune to the next station and the left arrow to tune to the
previous station and stay there.
To scan your preset stations, press and hold one of the
arrows for more than two seconds. The radio will
produce one beep. Use preset scan to listen to each of
your favorite stations stored on your pushbuttons for a
few seconds. The radio will scan through each of the
stations stored on your pushbuttons, except those
stations with weak reception. 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.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 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.

3-29
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.

3-38
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.