ECU GMC ENVOY XUV 2004 Service Manual

Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOLžcoolant mixture if necessary. SeeEngine
Coolant on page 5-23for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
At Least Once a Month
Tire In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Do not forget to check
your spare tire. See
Tires on page 5-52for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to rotate or turn
the spare tire. If it moves, tighten it. See
Changing a
Flat Tire on page 5-71.
6-10

Mexico, Central America and Caribbean
Islands/Countries (Except Puerto
Rico and U.S. Virgin Islands)
General Motors de Mexico, S. de R.L. de C.V.
Customer Assistance Center
Paseo de la Reforma # 2740
Col. Lomas de Bezares
C.P. 11910, Mexico, D.F.
01-800-508-0000
Long Distance: 011-52-53 29 0 800
GM Mobility Program for Persons
with Disabilities
This program, available to
quali®ed applicants, can
reimburse you up to
$1,000 toward eligible
aftermarket driver or
passenger adaptive
equipment you may require
for your vehicle (hand
controls, wheelchair/
scooter lifts, etc.).This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The offer is available for
a limited period of time from the date of vehicle
purchase/lease. For more details, or to determine your
vehicle's eligibility, see your GM dealer or call the
GM Mobility Assistance Center at 1-800-323-9935. Text
telephone (TTY) users, call 1-800-833-9935.
GM of Canada also has a Mobility Program. Call
1-800-GM-DRIVE (463-7483) for details. All TTY users
call 1-800-263-3830.
Roadside Assistance Program
Security While You Travel
1-800-GMC-8782 (1-800-462-8782, Roadside
Assistance prompt)
As the proud owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside Assistance
program. This value-added service is intended to
provide you with peace of mind as you drive in the city
or travel the open road. GMC's Roadside Assistance
toll-free number is staffed by courteous and capable
Roadside Assistance Representatives who are available
24 hours a day, 365 days a year.
7-5

While we hope you never have the occasion to use our
service, it is added security while traveling for you
and your family. Remember, we are only a phone call
away. GMC Roadside Assistance: 1-800-462-8782, text
telephone (TTY) users, call 1-888-889-2438.
GMC reserves the right to limit services or
reimbursement to an owner or driver when, in GMC's
judgement, the claims become excessive in frequency or
type of occurrence.
Roadside Assistance is not part of or included in the
coverage provided by the New Vehicle Limited Warranty.
GMC reserves the right to make any changes or
discontinue the Roadside Assistance program at any
time without noti®cation.
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
roadside assistance program accessible from anywhere
in Canada or the United States. Please refer to the
Warranty and Owner Assistance Information book.
Courtesy Transportation
GMC has always exempli®ed quality and value in its
offering of motor vehicles. To enhance your ownership
experience, we and our participating dealers are
proud to offer Courtesy Transportation, a customer
support program for new vehicles.The Courtesy Transportation program is offered to retail
purchase/lease customers in conjunction with the
Bumper-to-Bumper coverage provided by the New
Vehicle Limited Warranty. Several transportation options
are available when warranty repairs are required.
This will reduce your inconvenience during
warranty repairs.
Plan Ahead When Possible
When your vehicle requires warranty service, you
should contact your dealer and request an appointment.
By scheduling a service appointment and advising
your service consultant of your transportation needs,
your dealer can help minimize your inconvenience.
If your vehicle cannot be scheduled into the service
department immediately, keep driving it until it can be
scheduled for service, unless, of course, the problem is
safety-related. If it is, please call your dealership, let
them know this, and ask for instructions.
If the dealer requests that you simply drop the vehicle
off for service, you are urged to do so as early in
the work day as possible to allow for the same
day repair.
7-7

Charging System Light....................................3-35
Check
Engine Light...............................................3-38
Gages Warning Light...................................3-44
CHECK WASHER FLUID.................................3-57
Checking Brake Fluid......................................5-38
Checking Coolant............................................5-25
Checking Engine Oil........................................5-15
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-60
Chemical Paint Spotting...................................5-90
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-31
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-40
Older Children.............................................1-29
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-44
Securing a Child Restraint in the Center
Seat Position...........................................1-46
Securing a Child Restraint in the Right
Front Seat Position...................................1-47
Top Strap...................................................1-38
Top Strap Anchor Location............................1-40
Where to Put the Restraint...........................1-38Chime Level Adjustment.................................3-121
Cigarette Lighter.............................................3-19
Cleaning
Inside of Your Vehicle..................................5-84
Outside of Your Vehicle................................5-87
Underbody Maintenance...............................5-90
Video Screen............................................3-121
Weatherstrips..............................................5-87
Cleaning Aluminum Wheels..............................5-89
Cleaning Exterior Lamps/Lenses.......................5-88
Cleaning Fabric/Carpet....................................5-84
Cleaning Glass Surfaces..................................5-86
Cleaning Interior Plastic Components.................5-86
Cleaning Leather............................................5-86
Cleaning the Top of the Instrument Panel...........5-86
Cleaning the Windshield, Backglass and Wiper
Blades.......................................................5-88
Cleaning Tires................................................5-89
Cleaning Vinyl................................................5-85
CLEAR ROOF OBSTRUCTION.........................3-59
Climate Control System
Climate Controls Personalization....................3-29
Dual..........................................................3-20
Dual Automatic............................................3-23
Rear..........................................................3-28
CLOSE OR OPEN THE ROOF.........................3-59
CLOSE THE ROOF........................................3-59
CLOSE THE TAILGATE...................................3-60
3

Compass Calibration.......................................2-41
Compass Operation.........................................2-41
Compass Variance..........................................2-42
Content Theft-Deferrent....................................2-22
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-37
Heater, Engine............................................2-28
Cooling System..............................................5-28
Cruise Control................................................3-11
Cruise Control Light........................................3-43
CURB VIEW ACTIVATED.................................3-58
Current and Past Model Order Forms................7-12
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United
States Government...................................7-10
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information........7-11D
Daytime Running Lamps (DRL).........................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-21, 3-26
Delayed Locking............................................... 2-8
Dinghy Towing................................................4-46
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-48
Dome Lamp Override......................................3-17
Dome Lamps.................................................3-18
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Driver
Position, Safety Belt.....................................1-13
DRIVER DOOR AJAR.....................................3-57
Driver Information Center (DIC).........................3-46
DIC Operation and Displays..........................3-46
DIC Warnings and Messages........................3-56
Driving
At Night.....................................................4-28
City...........................................................4-33
Defensive..................................................... 4-2
Drunken....................................................... 4-2
4

Instrument Panel Brightness.............................3-16
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-16
Lamps On Reminder.......................................3-15
Lap-Shoulder Belt...................................1-14, 1-22
LATCH System
Child Restraints...........................................1-40
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Leaving Your Vehicle.......................................2-11
Leaving Your Vehicle With the Engine Running . . . 2-37
LEFT REAR DOOR AJAR................................3-58Light
Air Bag Readiness.......................................3-34
Anti-Lock Brake System Warning...................3-37
Brake System Warning.................................3-36
Change Engine Oil......................................3-42
Charging System.........................................3-35
Check Gages Warning.................................3-44
Cruise Control.............................................3-43
Low Fuel Warning.......................................3-45
Malfunction Indicator....................................3-38
Reduced Engine Power................................3-43
Safety Belt Reminder...................................3-33
Security.....................................................3-42
Service Four-Wheel-Drive Warning Light.........3-44
Lighted Visor Vanity Mirror...............................2-21
Listening to a DVD................................3-88, 3-103
Loading Your Vehicle.......................................4-49
Loading Your Vehicle for Off-Road Driving..........4-16
Locking Rear Axle...........................................4-10
Lockout Protection..........................................2-11
Locks
Delayed Locking........................................... 2-8
Door........................................................... 2-7
Leaving Your Vehicle....................................2-11
Lockout Protection.......................................2-11
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
8

Power (cont.)
Roof..........................................................2-17
Seat............................................................ 1-3
Steering Fluid.............................................5-35
Windows....................................................2-20
Power Steering...............................................4-10
Programmable Automatic Door Locks.................. 2-9
Programmable Locking Feature.......................... 2-9
Programmable Unlocking Feature......................2-10
Programming the HomeLink
žTransmitter...........2-47
Q
Questions and Answers About Safety Belts.........1-12
R
Radiator Pressure Cap....................................5-26
Radio Data System (RDS)...............3-62, 3-74, 3-89
Radio Messages.....................................3-68, 3-80
Radios..........................................................3-61
Care of Your Cassette Tape Player...............3-119
Care of Your CD and DVD Player................3-121
Care of Your CDs and DVDs.......................3-120
Navigation/Radio System.............................3-104
Radio Personalization.................................3-117
Radio with Cassette and CD.........................3-74
Radio with CD............................................3-62
Radio with Six-Disc CD................................3-89Radios (cont.)
Rear Seat Audio........................................3-116
Setting the Time..........................................3-61
Theft-Deterrent..........................................3-117
Understanding Reception............................3-119
RainsenseŸ Wipers.......................................... 3-9
RDS Messages..............................3-67, 3-79, 3-95
Reading Lamps..............................................3-18
Rear Axle......................................................5-46
Locking......................................................4-10
Rear Cargo Mat.............................................2-53
Rear Climate Control System............................3-28
Rear Door Security Locks................................2-11
Rear Safety Belt Comfort Guides......................1-24
Rear Seat Audio (RSA)..................................3-116
Rear Seat Entertainment System.....................3-104
Rear Seat Operation......................................... 1-7
Rear Seat Passenger Positions.........................1-21
Rear Seat Passengers, Safety Belts..................1-21
Rear Underseat Fuse Block..............................5-98
Rear Window Defogger............................3-22, 3-26
REAR WIPER OBSTRUCTION.........................3-60
Rearview Mirror, Automatic Dimming with
OnStar
žand Compass.................................2-41
Reclining Seatbacks.......................................... 1-5
Recommended Fluids and Lubricants.................6-13
Recreational Vehicle Towing.............................4-45
Reduced Engine Power Light............................3-43
Remote Control.............................................3-108
Remote Keyless Entry System............................ 2-4
11

Seats (cont.)
Manual........................................................ 1-2
Memory.....................................................2-54
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-3
Rear Seat Operation...................................... 1-7
Reclining Seatbacks...................................... 1-5
Securing a Child Restraint
Center Seat Position....................................1-46
Designed for the LATCH System...................1-43
Rear Outside Seat Position...........................1-44
Right Front Seat Position..............................1-47
Security Light.................................................3-42
Security While You Travel.................................. 7-5
SEE MANUAL ±TAILGATE...............................3-60
Select...........................................................3-55
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-38
Four-Wheel-Drive Warning Light.....................3-44
Publications Ordering Information...................7-11
SERVICE AIR BAG.........................................3-56
SERVICE BRAKE SYSTEM.............................3-57
Service Bulletins.............................................7-12
Service Engine Soon Light in the United States
or Check Engine Light in Canada..................3-38
Service Manuals.............................................7-11Setting Preset PTYs (RDS Only).......3-67, 3-79, 3-94
Setting Preset Stations....................3-64, 3-76, 3-91
Setting the Time.............................................3-61
Setting the Tone (Bass/Treble)..........3-65, 3-77, 3-92
Sheet Metal Damage.......................................5-89
Shifting Into Park (P).......................................2-36
Shifting Out of Park (P)...................................2-38
Skidding........................................................4-14
Snow Plow....................................................4-56
Some Other Rainy Weather Tips.......................4-32
Spare Tire.....................................................5-83
Special Fabric Cleaning Problems.....................5-85
Speci®cations, Capacities...............................5-101
Speedometer..................................................3-32
Stalling on an Incline.......................................4-26
Starting Your Engine.......................................2-26
Steering........................................................4-10
Steering in Emergencies..................................4-11
Steering Tips..................................................4-10
Steering Wheel Controls, Audio.......................3-118
Steering Wheel, Tilt Wheel................................. 3-6
Stereo RCA Jacks.........................................3-112
Storage Areas
All-Weather Cargo Area................................2-52
Front Storage Area......................................2-51
Glove Box..................................................2-51
Overhead Console.......................................2-51
Storing a Flat or Spare Tire and Tools...............5-81
Stuck in Sand, Mud, Ice or Snow......................4-44
13