2004 GMC ENVOY XL instrument panel

Liftgate/Liftglass
{CAUTION:
It can be dangerous to drive with the liftgate or
liftglass open because carbon monoxide (CO)
gas can come into your vehicle. You can not
see or smell CO. It can cause
unconsciousness and even death. If you must
drive with the liftgate open or if electrical
wiring or other cable connections must pass
through the seal between the body and the
liftgate or liftglass:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System in the Index.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-34.
Liftgate Release
To unlock the liftgate, you may use the power door
locks or the keyless entry system described earlier.
On some vehicles the liftglass will also unlock when the
liftgate is unlocked. Press the pushbutton on the
liftglass to open it.
To open the entire liftgate, lift the handle located in the
center of the liftgate. If you open the liftgate, the
liftgate module will lock the liftglass after a one to two
second delay.
Emergency Release for Opening
Liftgate
1. Remove the trim plug to expose the access hole in
the trim panel. The access hole is located on the
inside of the liftgate.
2. Use a tool to reach through the access hole in the
trim panel.
3. Pry the left release lever up to the unlock position.
Pry the right release lever up to unlatch the liftgate.
4. Reattach the trim plug.
2-14

SECOND (2):This position gives you more power
but lower fuel economy than THIRD (3). You can use
SECOND (2) on hills. It can help control your speed
as you go down steep mountain roads, but then
you would also want to use the brakes off and on.
You can also use SECOND (2) for starting the vehicle
from a stop on slippery road surfaces.
FIRST (1):This position gives you even more power
but lower fuel economy than SECOND (2). You can
use it on very steep hills, or in deep snow or mud.
If the selector lever is put in FIRST (1) while the vehicle
is moving forward, the transmission won’t shift into
rst gear until the vehicle is going slowly enough.
Notice:Spinning the tires or holding the vehicle
in one place on a hill using only the accelerator
pedal may damage the transmission. If you
are stuck, do not spin the tires. When stopping on
a hill, use the brakes to hold the vehicle in place.Four-Wheel Drive
If your vehicle has four-wheel drive, you can send
your engine’s driving power to all four wheels for extra
traction. To get the most satisfaction out of four-wheel
drive, you must be familiar with its operation. Read
the part that follows before using four-wheel drive.
You should use two-wheel drive high (2HI) for most
normal driving conditions.
Notice:Driving on pavement in four-wheel drive
for an extended period of time may cause premature
wear on your vehicle’s powertrain. Do not drive in
four-wheel drive on pavement for extended periods
of time.
Automatic Transfer Case
If your vehicle is equipped
with four-wheel drive,
the transfer case knob is
located to the right of
the steering wheel on the
instrument panel. Use
this knob to shift into and
out of four-wheel drive.
2-26

If the service four-wheel drive light on the instrument
panel cluster stays on, you should take your vehicle
to your dealer for service. SeeService Four-Wheel Drive
Warning Light on page 3-48for further information.
Shifting into 4HI or A4WD
Turn the knob to 4HI or A4WD. This can be done at any
speed unless you are shifting out of 4LO. The indicator
light will ash while shifting. It will remain illuminated
when the shift is complete.
Shifting into 2HI
Turn the knob to 2HI. This can be done at any speed
unless you are shifting out of 4LO.
Shifting into 4LO
To shift to 4LO, the vehicle’s engine must be running
and the vehicle must be stopped or moving less than
2 mph (3.2 km/h) with the transmission in NEUTRAL (N).
The preferred method for shifting into 4LO is to have your
vehicle moving 1 or 2 mph (1.6 to 3.2 km/h). Turn the
knob to 4LO. You must wait for the 4LO indicator light to
stop ashing and remain illuminated before shifting your
transmission into gear.If you turn the knob to 4LO when your vehicle is in
gear and/or moving, the 4LO indicator light will ash
for 30 seconds and not complete the shift unless your
vehicle is moving less than 2 mph (3.2 km/h) and
the transmission is in NEUTRAL (N). After 30 seconds,
the transfer case will return to the setting last chosen.
Shifting Out of 4LO
To shift from 4LO to 4HI, A4WD or 2HI your vehicle must
be stopped or moving less than 2 mph (3.2 km/h) with the
transmission in NEUTRAL (N) and the engine running.
The preferred method for shifting out of 4LO is to have
your vehicle moving 1 or 2 mph (1.6 to 3.2 km/h). Turn
the knob to 4HI, A4WD or 2HI. You must wait for the 4HI,
A4WD or 2HI indicator light to stop ashing and remain
illuminated before shifting your transmission into gear.
If the knob is turned to 4HI, A4WD or 2HI when your
vehicle is in gear and/or moving, the 4HI, A4WD or 2HI
indicator light will ash for 30 seconds. It will not
complete the shift unless your vehicle is moving less
than 2 mph (3.2 km/h) with the transmission in
NEUTRAL (N).
2-28

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Exterior Lamps.............................................3-16
Interior Lamps..............................................3-18
Accessory Power Outlets...............................3-21
Ashtrays and Cigarette Lighter........................3-21
Climate Controls............................................3-22
Dual Climate Control System..........................3-22
Dual Automatic Climate Control System...........3-25
Rear Climate Control System.........................3-31
Climate Controls Personalization.....................3-34
Warning Lights, Gages, and Indicators............3-35
Instrument Panel Cluster................................3-36
Speedometer and Odometer...........................3-37
Tachometer.................................................3-37
Safety Belt Reminder Light.............................3-38
Air Bag Readiness Light................................3-38
Charging System Light..................................3-39Voltmeter Gage............................................3-40
Brake System Warning Light..........................3-40
Anti-Lock Brake System Warning Light.............3-42
Engine Coolant Temperature Gage..................3-42
Malfunction Indicator Lamp.............................3-43
Oil Pressure Gage........................................3-46
Change Engine Oil Light................................3-47
Security Light...............................................3-47
Cruise Control Light......................................3-48
Reduced Engine Power Light.........................3-48
Service Four-Wheel Drive Warning Light..........3-48
Check Gages Warning Light...........................3-49
Gate Ajar Light.............................................3-49
Fuel Gage...................................................3-50
Low Fuel Warning Light.................................3-50
Driver Information Center (DIC).......................3-51
DIC Operation and Displays...........................3-51
DIC Warnings and Messages.........................3-60
Audio System(s).............................................3-64
Setting the Time...........................................3-64
Radio with CD..............................................3-65
Radio with Cassette and CD..........................3-76
Section 3 Instrument Panel
3-1

Radio with Six-Disc CD.................................3-92
Navigation/Radio System..............................3-106
Rear Seat Entertainment System...................3-106
Rear Seat Audio (RSA)................................3-117
Radio Personalization..................................3-119
Theft-Deterrent Feature................................3-119
Audio Steering Wheel Controls......................3-119Radio Reception.........................................3-120
Care of Your Cassette Tape Player...............3-121
Care of Your CDs and DVDs........................3-122
Care of Your CD and DVD Player.................3-122
Fixed Mast Antenna....................................3-122
XM™ Satellite Radio Antenna System............3-122
Chime Level Adjustment...............................3-122
Section 3 Instrument Panel
3-2

Instrument Panel Overview
3-4

The main components of your instrument panel are the
following:
A. Exterior Lamp Controls. SeeExterior Lamps on
page 3-16.
B. Air Outlets. See “Outlet Adjustment” underDual
Climate Control System on page 3-22.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. OnStar and Audio Steering Wheel Controls. See
Audio Steering Wheel Controls on page 3-119.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-36.
F. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-119.
G. Ignition Switch. SeeIgnition Positions on page 2-20.
H. Audio System. SeeAudio System(s) on page 3-64.
I. Climate Controls. SeeDual Climate Control
System on page 3-22.
J. Hood Release. SeeHood Release on page 5-10.K. Driver Information Center (DIC) Steering Wheel
Controls. SeeDriver Information Center (DIC)
on page 3-51.
L. Transfer Case Controls. See “Automatic Transfer
Case” underFour-Wheel Drive on page 2-26.
M. Shift Lever. SeeShifting Into Park (P) on page 2-31.
N. Lighter. SeeAshtrays and Cigarette Lighter on
page 3-21.
O. Accessory Power Outlets. SeeAccessory Power
Outlets on page 3-21.
P. Parking Brake. SeeParking Brake on page 2-29.
Q. Rear Window Washer/Wiper. See “Rear Window
Washer/Wiper” underTurn Signal/Multifunction
Lever on page 3-7.
R. Rear Window Defogger. See “Rear Window
Defogger” underDual Climate Control System
on page 3-22.
S. Glove Box. SeeGlove Box on page 2-46.
3-5

Turn and Lane Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow you
to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is nished, the lever will return
automatically.
An arrow on the
instrument panel cluster
will ash in the direction
of the turn or lane change.
To signal a lane change, just raise or lower the lever until
the arrow starts to ash. Hold it there until you complete
your lane change. The lever will return by itself when you
release it. The bottom of the outside rearview mirrors may
also be equipped with lane change indicators.As you signal a turn or a lane change, if the arrows
ash more quickly than normal, a signal bulb may
be burned out and other drivers won’t see your turn
signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don’t go on at all when you signal
a turn, check the fuse. SeeFuses and Circuit Breakers
on page 5-97and check for burned-out bulbs.
If you have a trailer towing option with added wiring for
the trailer lamps, a different turn signal asher is
used. With this asher installed, the signal indicator will
ash even if a turn signal bulb is burned out. Check
the front and rear turn signal lamps regularly to make
sure they are working.
3-8