2004 GMC ENVOY XUV service

{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. See
Parking Brake on
page 2-35
.
NEUTRAL:Shift the vehicle's transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 4-45for more
information.
An indicator light in the knob will show you which
position the transfer case is in. The indicator lights will
come on brie¯y 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 remain illuminated 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 light on the instrument
panel cluster stays on, you should take your vehicle to
your dealer for service. See
Service Four-Wheel
Drive Warning Light on page 3-44for 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.
2-33

Mirrors
Automatic Dimming Rearview Mirror
with OnStar
žand Compass
Your vehicle may have an automatic-dimming rearview
mirror with a compass and the OnStaržsystem.
There are three additional buttons for the OnStar
ž
system. See your dealer for more information on the
system and how to subscribe to OnStarž. SeeOnStarž
System on page 2-45for more information about the
services OnStaržprovides.
Mirror Operation
When turned on, this mirror automatically dims to the
proper level to minimize glare from any headlamps
behind you after dark.
O(On/Off): This is the on/off button for the automatic
dimming feature and compass. Press the far left button,
located below the the mirror face, for up to three
seconds to turn the feature on and off. A light on the
mirror will be lit while the feature is turned on.
Compass Operation
Press the on/off button once to turn the compass
on or off.
There is a compass display in the window in the upper
right corner of the mirror face. The compass displays
a maximum of two characters. For example, ªNEº
is displayed for north-east.
Compass Calibration
Press and hold the on/off button down for nine seconds
to activate the compass calibration mode. CAL will
be displayed in the compass window on the mirror.
The compass can be calibrated by driving the vehicle in
circles at 5 mph (8 km/h) or less until the display
reads a direction.
2-41

OnStaržSystem
Your vehicle may have this feature. OnStaržuses
global positioning system (GPS) satellite technology,
wireless communications, and state of the art call
centers to provide you with a wide range of safety,
security, information and convenience services.
A complete OnStar
žuser's guide and the terms and
conditions of the OnStaržSubscription Service
Agreement are included in your OnStarž-equipped
vehicle's glove box literature. For more information, visit
www.onstar.com, contact OnStar
žat 1-888-4-ONSTAR
(1-888-466-7827), or press the blue OnStaržbutton
to speak to an OnStaržadvisor 24 hours a day, 7 days
a week.
A completed Subscription Service Agreement is required
prior to delivery of OnStar
žservices and prepaid
calling minutes are also required for OnStaržPersonal
Calling and OnStaržVirtual Advisor use. Terms and
conditions of the Subscription Service Agreement can be
found at www.onstar.com.
OnStaržServices
One of the following plans is normally included for a
speci®c duration with each vehicle equipped with
OnStar
ž. You can upgrade or extend your OnStarž
service plan to meet your needs.
Safe and Sound Plan
·
Automatic Noti®cation of Air Bag Deployment
·Emergency Services
·Roadside Assistance
·Stolen Vehicle Assistance
·AccidentAssist
·Remote Door Unlock
·Remote Diagnostics
·Online Concierge
Directions and Connections Plan
·
All Safe and Sound Plan services
·Route Support
·RideAssist
·Information and Convenience Services
2-45

Luxury and Leisure Plan
·
All Directions and Connections Plan services
·Personal Concierge
OnStaržPersonal Calling
With OnStaržPersonal Calling, you have a safer way to
stay connected while driving. It's a hands-free wireless
phone that's integrated into your vehicle. You can place
calls nationwide using voice-activated dialing with no
contracts and no additional roaming charges. To ®nd out
more about OnStar
žPersonal Calling, refer to the
OnStaržowner's guide in your vehicle's glove box, or
call OnStaržat 1-888-4-ONSTAR (1-888-466-7827).
OnStaržVirtual Advisor
With OnStaržVirtual Advisor you can listen to your
favorite news, entertainment and information topics,
such as traffic and weather reports, stock quotes
and sports scores. You listen to your e-mail through
your vehicle's speakers, and reply with your hands on
the wheel and your eyes on the road.
2-46

HomeLinkžTransmitter
HomeLinkž, a combined universal transmitter and
receiver, provides a way to replace up to three
hand-held transmitters used to activate devices such as
gate operators, garage door openers, entry door
locks, security systems and home lighting. Additional
HomeLink
žinformation can be found on the internet at
www.homelink.com or by calling 1- 800- 355- 3515.
If your vehicle is equipped with the HomeLink
ž
Transmitter, it complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.This device complies with RSS- 210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes and modi®cations to this system by other than
an authorized service facility could void authorization
to use this equipment.
Programming the HomeLinkž
Transmitter
Do not use the HomeLinkžTransmitter with any garage
door opener that does not have the ªstop and reverseº
feature. This includes any garage door opener model
manufactured before April 1, 1982. If you have a newer
garage door opener with rolling codes, please be
sure to follow steps 6 through 8 to complete the
programming of your HomeLink
žTransmitter.
Read the instructions completely before attempting to
program the HomeLink
žTransmitter. Because of
the steps involved, it may be helpful to have another
person available to assist you in programming the
transmitter.
2-47

Instrument Panel Overview...............................3-4
Other Warning Devices...................................3-5
Horn.............................................................3-5
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-6
Exterior Lamps.............................................3-14
Interior Lamps..............................................3-16
Accessory Power Outlets...............................3-19
Ashtrays and Cigarette Lighter........................3-19
Climate Controls............................................3-20
Dual Climate Control System..........................3-20
Dual Automatic Climate Control System...........3-23
Rear Climate Control System.........................3-28
Climate Controls Personalization.....................3-29
Warning Lights, Gages, and Indicators............3-30
Instrument Panel Cluster................................3-31
Speedometer and Odometer...........................3-32
Tachometer.................................................3-33
Safety Belt Reminder Light.............................3-33Air Bag Readiness Light................................3-34
Charging System Light..................................3-35
Voltmeter Gage............................................3-35
Brake System Warning Light..........................3-36
Anti-Lock Brake System Warning Light.............3-37
Engine Coolant Temperature Gage..................3-37
Malfunction Indicator Lamp.............................3-38
Oil Pressure Gage........................................3-41
Change Engine Oil Light................................3-42
Security Light...............................................3-42
Cruise Control Light......................................3-43
Reduced Engine Power Light.........................3-43
Service Four-Wheel Drive Warning Light..........3-44
Check Gages Warning Light...........................3-44
Fuel Gage...................................................3-45
Low Fuel Warning Light.................................3-45
Driver Information Center (DIC).......................3-46
DIC Operation and Displays...........................3-46
DIC Warnings and Messages.........................3-56
Section 3 Instrument Panel
3-1

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows the air bag symbol. The system
checks the air bag's electrical system for malfunctions.
The light tells you if there is an electrical problem.
The system check includes the air bag sensors, the air
bag modules, the wiring and the crash sensing and
diagnostic module.
This light will come on
when you start your
vehicle, and it will ¯ash for
a few seconds. Then
the light should go out.
This means the system is
ready.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away.{CAUTION:
If the air bag readiness light stays on after you
start your vehicle, it means the air bag system
may not be working properly. The air bags in
your vehicle may not in¯ate in a crash, or they
could even in¯ate without a crash. To help
avoid injury to yourself or others, have your
vehicle serviced right away if the air bag
readiness light stays on after you start your
vehicle.
The air bag readiness light should ¯ash for a few
seconds when you turn the ignition key to RUN. If the
light doesn't come on then, have it ®xed so it will
be ready to warn you if there is a problem.
3-34

Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The
light will stay on if your parking brake doesn't release
fully. If it stays on after your parking brake is fully
released, it means you have a brake problem. A chime
may also sound when the light comes on.
Your vehicle's hydraulic brake system is divided into two
parts. If one part isn't working, the other part can still
work and stop you. For good braking, though, you need
both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.This light should come on brie¯y when you turn the
ignition key to RUN. If it doesn't come on then, have it
®xed so it will be ready to warn you if there's a
problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push. Or, the pedal may go closer to the
¯oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. See
Towing
Your Vehicle on page 4-45.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service.
United States
Canada
3-36