instrument panel GMC ENVOY 2008 User Guide

Four-Wheel Drive
If your vehicle has four-wheel drive, the engine’s driving
power can be sent 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 High for most normal driving conditions.
Notice:Driving on clean, dry pavement in
Four-Wheel-Drive High or Four-Wheel-Drive Low for
an extended period of time may cause premature
wear on your vehicle’s powertrain. Do not drive on
clean, dry pavement in Four-Wheel-Drive High or
Four-Wheel-Drive Low for extended periods of time.
Notice:If you continually drive your vehicle with
the transfer case in AUTO or Four-Wheel Drive, you
could shorten the life of the transfer case or the
Four-Wheel Drive system. The selector switch
should be left in Two-Wheel Drive High mode. Only
use AUTO and Four-Wheel Drive when you need
extra traction such as in wet or slippery road
conditions.
Automatic Transfer Case
If your vehicle has 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
m(Two-Wheel High):This setting is for driving in
most street and highway situations. Your front axle is not
engaged in two-wheel drive. It also provides the best
fuel economy.
2-29

AUTO (Automatic Four-Wheel Drive):This setting is
ideal for use when road conditions are variable. When
driving your vehicle in automatic four-wheel drive, the
front axle is engaged, but the vehicle’s power is sent to
the rear wheels. When the vehicle senses a loss of
traction, the system will automatically engage four-wheel
drive. Driving in this mode results in slightly lower fuel
economy than Two-Wheel High.
4
m(Four-Wheel High):This setting should be used
when you need extra traction, such as on snowy or
icy roads or in most off-road situations. This setting also
engages your front axle to help drive your vehicle.
4
n(Four-Wheel Low):This setting also engages
your front axle and delivers extra torque. It sends
maximum power to all four wheels. You might choose
this setting if you are driving off-road in deep sand,
deep mud, and climbing or descending steep hills.
{CAUTION:
Shifting the transfer case to NEUTRAL
can cause your vehicle to roll even if the
transmission is in PARK (P). You or someone
else could be seriously injured. Be sure to set
the parking brake before placing the transfer
case in NEUTRAL. SeeParking Brake on
page 2-33.
NEUTRAL:Shift the vehicle’s transfer case
to NEUTRAL only when towing your vehicle.
SeeRecreational Vehicle Towing on page 4-40
for more information.
An indicator light in the knob will show you which
position the transfer case is in. The indicator lights will
come on briey when you turn on the ignition and one will
stay on. If the lights do not come on, you should take your
vehicle to your dealer for service. An indicator light will
ash while shifting the transfer case. It will stay on when
the shift is complete. If for some reason the transfer case
cannot make a requested shift, it will return to the last
chosen setting.
If the service Four-Wheel Drive Warning 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 3-47for
further information.
2-30

Parking Brake
To set the parking brake,
hold the regular brake
pedal down with your
foot and pull up on
the parking brake lever
located between the seats.
To release the parking brake, hold the regular brake
pedal down. Pull the parking brake lever up until you
can press in the button at the end of the lever. Hold the
button in as you move the parking brake lever all the
way down.If the ignition is on, the brake system warning light on
the instrument panel cluster will come on. SeeBrake
System Warning Light on page 3-38.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
If you are towing a trailer and you must park on a hill,
seeTowing a Trailer on page 4-45.
2-33

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Windshield Washer.........................................3-9
Rear Window Wiper/Washer...........................3-10
Headlamp Washer........................................3-11
Cruise Control..............................................3-11
Headlamps..................................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-15
Fog Lamps..................................................3-16
Instrument Panel Brightness...........................3-17
Dome Lamps...............................................3-17
Dome Lamp Override....................................3-17
Entry Lighting...............................................3-18
Exit Lighting.................................................3-18
Reading Lamps............................................3-18
Electric Power Management...........................3-18
Battery Run-Down Protection..........................3-19Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-20
Climate Controls............................................3-21
Dual Climate Control System..........................3-21
Dual Automatic Climate Control System...........3-23
Outlet Adjustment.........................................3-28
Rear Climate Control System.........................3-28
Warning Lights, Gages, and Indicators............3-30
Instrument Panel Cluster................................3-31
Speedometer and Odometer...........................3-32
Trip Odometer..............................................3-32
Tachometer.................................................3-32
Safety Belt Reminders...................................3-32
Airbag Readiness Light..................................3-33
Passenger Airbag Status Indicator...................3-34
Charging System Light..................................3-36
Voltmeter Gage............................................3-37
Brake System Warning Light..........................3-38
Antilock Brake System Warning Light...............3-39
StabiliTrak
®Service Light...............................3-39
StabiliTrak®Indicator Light..............................3-40
Engine Coolant Temperature Gage..................3-40
Tire Pressure Light.......................................3-41
Malfunction Indicator Lamp.............................3-41
Oil Pressure Gage........................................3-44
Change Engine Oil Light................................3-45
Section 3 Instrument Panel
3-1

Security Light...............................................3-46
Cruise Control Light......................................3-46
Reduced Engine Power Light.........................3-46
Highbeam On Light.......................................3-47
Service Four-Wheel Drive Warning Light..........3-47
Check Gages Warning Light...........................3-47
Gate Ajar Light.............................................3-48
Fuel Gage...................................................3-48
Low Fuel Warning Light.................................3-49
Check Gas Cap Light....................................3-49
Driver Information Center (DIC).......................3-49
DIC Operation and Displays...........................3-50
DIC Warnings and Messages.........................3-53
DIC Vehicle Customization.............................3-58Audio System(s).............................................3-65
Setting the Clock..........................................3-66
Radio(s)......................................................3-66
Using an MP3..............................................3-82
XM Radio Messages.....................................3-86
Navigation/Radio System...............................3-87
Rear Seat Entertainment (RSE) System...........3-87
Rear Seat Audio (RSA)................................3-100
Theft-Deterrent Feature................................3-101
Audio Steering Wheel Controls......................3-101
Radio Reception.........................................3-102
Fixed Mast Antenna....................................3-103
XM™ Satellite Radio Antenna System............3-103
Chime Level Adjustment...............................3-103
Section 3 Instrument Panel
3-2

Instrument Panel Overview
3-4

The main components of your instrument panel are the following:
A. Exterior Lamp Control. SeeHeadlamps on
page 3-14. Dome Lamp Override Button.
SeeDome Lamp Override on page 3-17. Instrument
Panel Brightness Control. SeeInstrument Panel
Brightness on page 3-17. Fog Lamp Button
(If Equipped). SeeFog Lamps on page 3-16.
B. Air Outlets. SeeOutlet Adjustment on page 3-28.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. OnStar and Audio Steering Wheel Controls.
SeeAudio Steering Wheel Controls on page 3-101.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-31.
F. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-101.
G. Ignition Switch. SeeIgnition Positions on page 2-21.
H. Audio System. SeeAudio System(s) on page 3-65.
I. Climate Controls. SeeDual Climate Control
System on page 3-21.
J. Hood Release. SeeHood Release on page 5-11.K. Driver Information Center (DIC) Steering Wheel
Controls. SeeDriver Information Center (DIC)
on page 3-49.
L. Transfer Case Controls. See “Automatic Transfer
Case” underFour-Wheel Drive on page 2-29.
M. Shift Lever and StabiliTrak
®(If Equipped) Button.
SeeShifting Into PARK (P) on page 2-34and
StabiliTrak
®System on page 4-6.
N. Lighter. SeeAshtray(s) and Cigarette Lighter on
page 3-20.
O. Accessory Power Outlets. SeeAccessory Power
Outlet(s) on page 3-20.
P. Parking Brake. SeeParking Brake on page 2-33.
Q. Rear Window Washer/Wiper. See “Rear Window
Washer/Wiper” underWindshield Washer on
page 3-9.
R. Rear Window Defogger. See “Rear Window
Defogger” underDual Climate Control System on
page 3-21andDual Automatic Climate Control
System on page 3-23.
S. Glove Box. SeeGlove Box on page 2-57.
3-5

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals
23Headlamp High/Low-Beam Changer
Flash-to-Pass Feature
NWindshield Wipers
JWindshield Washer
ICruise Control
Turn and Lane-Change Signals
The turn signal has two upward and two downward
positions.
To signal a turn, move the lever all the way up or down.
When the turn is nished, the lever returns automatically.
An arrow on the instrument
panel cluster ashes in the
direction of the turn or
lane change.
To signal a lane change, raise or lower the lever until
the arrow starts to ash. Hold it there until your lane
change is completed. The lever returns by itself when
released.
If the arrows ash more quickly than normal, a signal
bulb could be burned out. Replace the bulb. If the arrows
do not go on at all when you signal a turn, check the
fuse. SeeFuses and Circuit Breakers on page 5-110
and check for burned-out bulbs.
If you have a trailer towing option with added wiring for
the trailer lamps, a turn signal asher is used. With this
asher installed, the signal indicator ashes even if a turn
signal bulb is burned out. Check the front and rear turn
signal lamps regularly to make sure they are working.
3-7

Turn Signal On Chime
A chime sounds if the turn signal has been on
3/4 of a mile (1.2 km). Move the turn signal lever to off.
Headlamp High/Low-Beam Changer
To change the headlamps from low to high beam,
push the lever toward the instrument panel. To return
to low-beam headlamps, pull the multifunction lever
toward you. Then release it.
When the high beams are
on, this indicator light on
the instrument panel
cluster will also be on.
Flash-to-Pass
This feature lets you use your high-beam headlamps to
signal a driver in front of you that you want to pass.
It works even if your headlamps are in the automatic
position.
To use it, pull the turn signal lever toward you, then
release it.
If the headlamps are in the automatic position or on
low beam, the high-beam headlamps turn on. They
will stay on as long as you hold the lever toward you.
The high-beam indicator on the instrument panel cluster
comes on. Release the lever to return to normal
operation.
3-8

Rear Window Wiper/Washer
{CAUTION:
In freezing weather, do not use your washer
until the windshield is warmed. Otherwise the
washer uid can form ice on the windshield,
blocking your vision.
The rear window/washer
control is located to the
right of the steering wheel
on the instrument panel.To turn the rear wiper on, turn the control to either 1, 2,
or 3. For delayed wiping, turn the control to 1 or 2. For
steady wiping, turn the control to 3. To turn the wiper off,
turn the control to 0.
To wash the rear window, press the washer symbol
located in the center of the control.
The rear window washer uses the uid from the same
reservoir as the windshield washer. However, the
rear window washer runs out of uid before the
windshield washer. If you can wash your windshield
but not your rear window, check the uid level.
3-10