display GMC ENVOY 2008 Repair Manual

z(Set-up Menu):Press to adjust the color, tint,
brightness, contrast, display mode, and dynamic range
compression. The dynamic range compression feature
can be used to reduce loud audio and increase low audio
produced by some DVDs.
e(Audio):Press to display a menu that only appears
while a DVD is being played. The format and content
of this function will vary for each disc.
r(Fast Reverse):Press to fast reverse the DVD or
CD. To stop fast reversing, press again. This button
might not work when the DVD is playing the copyright
information or the previews.
SRCE (Source):Press to switch between the DVD
player and an auxiliary source.
c(Stop):Press to stop playing, rewinding, or fast
forwarding a DVD or CD. Press twice to return to
the beginning of the DVD.
t(Previous Track/Chapter):Press to return to the
start of the current track or chapter. Press again to return
to the previous track or chapter. This button might not
work while the DVD is playing the copyright information
or the previews.
1 through 0 (Numeric Keypad):The numeric keypad
provides you with the capability of direct chapter,
title, and track number selection.
}10 (Double Digit Entries):Press to select chapter,
title, and track numbers greater than 9. Press before
inputting the number.
\(Clear):Press within three seconds to clear a
number that has been entered.
P(Illumination):Press to turn the remote control
backlight on. The backlight times out after about
7 to 10 seconds if no other button is pressed while
the backlight is on.
y(Main DVD Menu):Press to access the DVD menu.
The DVD menu is different on every DVD. Use the
navigation arrows to move the cursor around the DVD
menu. After making a selection press the enter button.
This button only operates when playing a DVD.
r(Enter):Press to select the choices that are
highlighted in any menu.
q(Return):Press to exit the current active menu
and return to the previous menu. This button operates
only when a DVD is playing and a menu is active.
|(Camera Angle):Press to change camera angles
on DVDs that have this feature when a DVD is playing.
The format and content of this function will vary for
each disc.
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Problem Recommended Action
No power. The ignition might
not be in ON/RUN or
ACC/ACCESSORY.
The parental control
button might have been
turned on. The power
indicator light ashes.
Disc will not play. The system might be off.
The parental control
button might have been
turned on. The power
indicator light ashes.
The system might be
in auxiliary mode.
The disc is upside down
or is not compatible.
The picture does not ll the
screen. There are black
borders on the top and
bottom or on both sides or
it looks stretched out.Check the display
mode settings in the
display menu.
The disc was ejected, but
it was pulled back into the
DVD player.The disc is being stored in
the DVD player. Press the
eject button again to eject
the disc.Problem Recommended Action
In auxiliary mode, the
picture moves or scrolls.Check the auxiliary input
connections at both
devices.
Change the Video Format
to PAL or NTSC. See
“Stereo RCA Jacks”
previously for how to
change the video format.
The language in the audio
or on the screen is wrong.Check the audio or
language selection in
the main DVD menu.
The remote control does
not work.Check to make sure there
is no obstruction between
the remote control and
the transmitter window.
Check the batteries to
make sure they are
not dead or installed
incorrectly.
The parental control
button might have been
turned on. The power
indicator light ashes.
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DVD Messages
The following errors can display on the video screen:
Disc Format Error:This message displays if a disc is
inserted upside down, if the disc is not readable, or
if the format is not compatible with the DVD player.
Load/Eject Error:This message displays if the disc is
not properly loaded or ejected.
Disc Play Error:This message displays if the DVD
player cannot play the disc. Scratched or damaged discs
cause this error.
Region Code Error:This message displays if the
region code of the DVD is not compatible with the region
code of the DVD player.
No Disc:This message displays if any of the buttons
on the DVD faceplate or remote control are pressed and
no disc is present in the DVD player.
DVD Distortion
There can be an experience with audio distortion in the
wireless headphones when operating cellular phones,
scanners, CB radios, Global Positioning Systems (GPS)*,
two-way radios, mobile fax, or walkie talkies.
It might be necessary to turn off the DVD player when
operating one of these devices in or near the vehicle.
* Excludes the OnStar
®System.
Cleaning the Video Screen
Use isopropyl or rubbing alcohol on a clean cloth and
gently wipe the video screen. Do not spray directly onto
the screen and do not press too hard or too long on
the video screen.
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Rear Seat Audio (RSA)
This feature allows rear seat passengers to listen to any
of the sources: radio, CDs, or DVDs. However, the rear
seat passengers can only control the sources that are not
being listened by the front seat passengers. For example,
rear seat passengers can listen to and control CDs or
DVDs through the headphones while the driver listens
to the radio through the front speakers. The rear seat
passengers have control of the volume for each set of
headphones.
The front seat audio controls always have priority over
the RSA controls. If the front seat passengers switch
the source for the main radio to a remote source,
the RSA is not able to control the source. The rear
seat audio can be operated while the main radio is off.
P(Power):Press this button to turn the system on or
off. The rear speakers are muted when the power is
turned on.
u(Volume):Turn this knob to increase or to
decrease the volume. The left volume knob controls
the left wired headphones and the right volume
knob controls the right wired headphones.
SRCE (Source):Press this button to select a source:
radio, CD, or DVD. The inactive CD or DVD remains
inside the radio for future listening.
SEEK:Press this button to advance to the next station
or track and stay there. The display shows the
selection. This function is inactive if the front seat
passengers are listening to the same audio source.
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To scan preset stations, press and hold the SEEK
button for two seconds and the radio advances to
the next preset station. If the button continues to be
held down, the radio advances through the available
preset stations. The display shows the selections.
This function is inactive if the front seat passengers
are listing to the radio.
While a CD is playing, press the SEEK button to go to
the next track on the CD. This function is inactive if
the front seat passengers are listening to a CD.
While a CD is playing in the six-disc CD player, press
and hold the SEEK button for two seconds to go you to
the next CD, if multiple CDs are loaded. This function is
inactive if the front seat passengers are listening to a CD.
Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identication Number
(VIN). If the radio is moved to a different vehicle, it does
not operate and LOCKED displays.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
®is armed.
With THEFTLOCK
®activated, the radio does not
operate if stolen.
Audio Steering Wheel Controls
If your vehicle has this feature, some audio controls can
be adjusted at the steering wheel. They include the
following:
g(OnStar®/Mute):If your vehicle has OnStar®,
press this button to interact with the OnStar®system.
See theOnStar®System on page 2-48in this manual
for more information.
If your vehicle does not have OnStar, press this button
to silence the system. Press it again, or any other
radio button, to turn on the sound.
3-101

PROG (Program):Press this button to play a station
that has been programmed on the radio preset
pushbuttons. The radio seeks preset stations only
with a strong signal that are in the selected band.
When a CD is playing in the CD changer, press this
button to go to the next available CD, if multiple CDs are
loaded.
QSOURCER:Press the SOURCE arrows to switch
between FM1, FM2, AM, or XM1 or XM2 (if equipped),
or a CD. If a CD is loaded the CD symbol displays.
QSEEKR:Press the SEEK arrows to go to
the previous or the next radio station and stay there.
The radio seeks stations only with a strong signal
that are in the selected band.
When a CD is playing, press the SEEK arrows to fast
forward or reverse.
QVOLR(Volume):Press the VOL arrows to
increase or to decrease the volume.
Radio Reception
Frequency interference and static during normal radio
reception can occur if items such as cellphone chargers,
vehicle convenience accessories, and external electronic
devices are plugged into the accessory power outlet. If
there is interference or static, unplug the item from the
accessory power outlet.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range can cause station
frequencies to interfere with each other. For better radio
reception, most AM radio stations boost the power levels
during the day, and then reduce these levels during the
night. Static can also occur when things like storms and
power lines interfere with radio reception. When this
happens, try reducing the treble on your radio.
FM Stereo
FM stereo gives the best sound, but FM signals reach
only about 10 to 40 miles (16 to 65 km). Tall buildings or
hills can interfere with FM signals, causing the sound
to fade in and out.
3-102

XM™ Satellite Radio Service
XM™ Satellite Radio Service gives digital radio
reception from coast-to-coast in the 48 contiguous
United States, and in Canada. Just as with FM,
tall buildings or hills can interfere with satellite radio
signals, causing the sound to fade in and out. In
addition, traveling or standing under heavy foliage,
bridges, garages, or tunnels may cause loss of the XM™
signal for a period of time. The radio may display NO
SIGNAL to indicate interference.
Fixed Mast Antenna
The xed mast antenna can withstand most car washes
without being damaged. If the mast should ever become
slightly bent, straighten it out by hand. If the mast is badly
bent, replace it.
Check occasionally to make sure the mast is still
tightened to its base. If tightening is required, tighten
by hand, then with a wrench one quarter turn.
XM™ Satellite Radio Antenna
System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
If your vehicle has a sunroof, the performance of the
XM™ system may be affected if the sunroof is open.
Loading items onto the roof of your vehicle can interfere
with the performance of the XM™ system. Make sure
the XM™ Satellite Radio antenna is not obstructed.
Chime Level Adjustment
The radio is used to adjust the vehicle’s chime level.
To change the volume level of the chime, press and hold
pushbutton 6 with the ignition on and the radio power off.
The volume level will change from the normal level to
loud, and LOUD CHIME will appear on the radio display.
To change back to the default or normal setting, press
and hold pushbutton 6 again. The volume level will
change from the loud level to normal, and NORMAL
CHIME will appear on the radio display. Removing the
radio and not replacing it with a factory radio or chime
module will disable vehicle chimes.
3-103

StabiliTrak®System
Your vehicle is equipped with StabiliTrak®, Electronic
Stability Control (ESC) which combines antilock brake,
traction and stability control systems and helps the driver
maintain directional control of the vehicle in most driving
conditions.
Traction control activates when the controller senses
wheel spin. StabiliTrak
®will selectively apply the brakes
and reduce engine torque to help regain traction.
Stability control activates when the controller senses
a discrepancy between your intended path and the
direction the vehicle is travelling. StabiliTrak
®selectively
applies braking pressure at any one of the vehicle’s
brakes to help guide the vehicle in the direction which
you are steering.
When you rst start your vehicle and begin to drive
away, the system performs several diagnostic checks to
insure there are no problems. You may hear or feel the
system working. This is normal and does not mean there
is a problem with your vehicle. If driving conditions delay
system initialization, the STABILITRAK NOT READY
message may be displayed. If this is the case, your
vehicle does not need servicing.
For more information on the stability messages,
seeDIC Warnings and Messages on page 3-53.When the StabiliTrak
®
system is both on and
actively controlling the
stability of the vehicle,
the StabiliTrak
®light will
blink for the duration of
the event.
You may also feel or hear the system working.
This is normal.
The StabiliTrak
®disable
button is located on the
transmission shift handle.
The StabiliTrak
®system is automatically disabled in
4LO mode and cannot be turned on until the vehicle
is switched to 2HI, 4HI, or 4AWD.
The StabiliTrak
®system has three modes of operation:
STABILITRAK ON, TRACTION CONTROL OFF,
and STABILITRAK OFF.
STABILITRAK ON -The vehicle will default to
STABILITRAK ON every time the driver starts the
vehicle. The StabiliTrak
®light will be off and no DIC
messages will be displayed.
4-6

TRACTION CONTROL OFF - The driver can modify
the engine speed management system by momentarily
pressing the StabiliTrak
®button on the transmission
shift handle. The StabiliTrak®light will come on and
TRACTION CONTROL OFF will be displayed. For
vehicles without a DIC, the StabiliTrak
®indicator light
will come on. Momentarily pressing the StabiliTrak®
button again will return the system to the STABILITRAK
ON mode.
STABILITRAK OFF - The driver can turn off StabiliTrak
®
by pressing the StabiliTrak®button for more than
ve seconds. The StabiliTrak®light will come on and
STABILITRAK OFF will be displayed. For vehicles
without a DIC, the StabiliTrak
®indicator light will come
on. Momentarily pressing the StabiliTrak®button again
will return the system to the STABILITRAK ON mode.
See StabiliTrak
®Off below for more information.
Traction Control Off
In this mode, stability control and brake-traction control
are functional. Engine speed management will be
modied and the driven wheels can spin more freely.
This can cause the brake-traction control to activate more
frequently. If the controller detects excessive wheel spin
in this mode, the StabiliTrak
®indicator light may blink and
the STABILITRAK ACTIVE message may be displayed
to warn the driver that damage may occur to the
transfer case.
StabiliTrak®Off
In this mode, both stability control and part of the
traction control system are disabled. Your vehicle will
still have brake-traction control, but will not be able
to use the engine speed management system. You may
still hear system noises as a result of the brake-traction
control coming on. If the controller detects excessive
wheel spin in this mode, the StabiliTrak
®indicator light
may blink and the STABILITRAK ACTIVE message
may be displayed to warn the driver that damage may
occur to the transfer case.
It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn the
system off if your vehicle is stuck in sand, mud, ice or
snow, and you may want to “rock” your vehicle in an
attempt to free it. It may also be necessary to turn off the
system when driving in extreme off-road conditions where
high wheel spin is required. SeeIf Your Vehicle is Stuck
in Sand, Mud, Ice, or Snow on page 4-33for more
information.
When the transfer case is in 4LO, the stability system is
automatically disabled. The StabiliTrak
®light will come
on and the STABILITRAK OFF message will appear on
the DIC. The StabiliTrak
®system cannot be turned on
until the vehicle is switched to 2HI, 4HI, or 4AWD.
4-7

The following chart describes the StabiliTrak®system events and the corresponding messages and lights that will be
displayed on the instrument panel cluster.
Vehicles with a DIC Vehicles without a DIC Event
StabiliTrak®
Indicator LightDIC MessageStabiliTrak
®
Indicator LightStabiliTrak
®Service
Light—
Off None Off OffStabiliTrak
®On
mode (System is fully
enabled, but is not
actively controlling
vehicle stability).
Solid Traction Control Off Solid OffTraction Control
Off Mode
Solid StabiliTrak
®Off Solid OffStabiliTrak
®Off Mode
(StabiliTrak®indicator
light will ash when
system rst enters
this mode).
Blinking StabiliTrak
®Active Blinking OffStabiliTrak
®system
activates using
engine speed
management, brake
traction control,
and/or stability
control.
Solid Service StabiliTrak
®Solid SolidStabiliTrak
®system is
disabled due to a
system fault.
SolidStabiliTrak
®Not
ReadySolid OffStabiliTrak®system is
disabled due to a
failure to initialize.
4-8