steering GMC ENVOY DENALI 2005 Service Manual

(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:The service description
indicates the load range and speed rating of a tire.
The load index can range from 1 to 279. Speed ratings
range from A to Z.
Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold Ination Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInation - Tire Pressure on page 5-61.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation (DOT) motor vehicle
safety standards. The DOT code includes the Tire
Identication Number (TIN), an alphanumeric designator
which can also identify the tire manufacturer, production
plant, brand and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-44.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-44.
5-58

To reinstall the cover, line up the tabs at the back of the
cover, put it in place and latch the tabs.
A continuous ashing indicator light may also indicate a
malfunction in the air suspension system. See
“Electronically Controlled Air Suspension System” under
Loading Your Vehicle on page 4-44for more information.
{CAUTION:
Inating something too much can make it
explode, and you or others could be injured.
Be sure to read the inator instructions, and
inate any object only to its recommended
pressure.
If a Tire Goes Flat
It’s unusual for a tire to “blowout” while you’re driving,
especially if you maintain your tires properly. If air goes
out of a tire, it’s much more likely to leak out slowly.
But if you should ever have a “blowout,” here are a few
tips about what to expect and what to do:
If a front tire fails, the at tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel rmly.
Steer to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you’d use
in a skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop, well off the road if possible.
5-70

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-16. Reset oil life
system. SeeEngine Oil Life System on page 5-19.An Emission Control
Service.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-20.An Emission Control Service. See footnotes †
and (k).•
Rotate tires and check ination pressures and wear. SeeTires on page 5-54.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
6-5

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Replace spark plugs.An Emission
Control Service.•
V8 engine only: Inspect spark plug
wires.An Emission Control Service.•
Engine cooling system service (or
every 5 years, whichever occurs
rst).An Emission Control Service.
See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.•
Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts or
signs of wear. Inspect power steering lines and
hoses for proper hook-up, binding, leaks, cracks,
chang, etc.
6-7

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM Standard
GM6094M and displays the
American Petroleum Institute
Certied for Gasoline Engines
starburst symbol.
GM Goodwrench
®oil meets all the
requirements for your vehicle. To
determine the proper viscosity for
your vehicle’s engine, seeEngine Oil
on page 5-16.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-25.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransmissionDEXRON
®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front and
Rear AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455)
meeting GM Specication 9986115.
6-12

Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in a
situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-GMC-8782 (1-800-462-8782),
or write:
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
7-13

A
Accessory Inator...........................................5-69
Accessory Power Outlets.................................3-19
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-63
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-96
Adjustable Throttle and Brake Pedal..................2-21
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning......................................3-21, 3-23
Airbag
Passenger Status Indicator...........................3-37
Readiness Light..........................................3-36
Airbag Sensing and Diagnostic Module (SDM)....7-10
Airbag System................................................1-48
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-63
How Does an Airbag Restrain?......................1-55
Passenger Sensing System...........................1-58
Servicing Your Airbag-Equipped Vehicle..........1-62
What Makes an Airbag Inate?......................1-55
What Will You See After an Airbag Inates?....1-56
When Should an Airbag Inate?....................1-53
Where Are the Airbags?...............................1-50
Antenna, Fixed Mast......................................3-139
Antenna, XM™ Satellite Radio Antenna System . . . 3-139
Anti-Lock Brake System (ABS)........................... 4-7Anti-Lock Brake, System Warning Light..............3-41
Appearance Care............................................5-86
Aluminum Wheels........................................5-91
Care of Safety Belts....................................5-89
Chemical Paint Spotting...............................5-93
Cleaning Exterior Lamps/Lenses....................5-90
Fabric/Carpet..............................................5-86
Finish Care.................................................5-90
Finish Damage............................................5-93
Glass Surfaces............................................5-88
Instrument Panel.........................................5-88
Interior Plastic Components...........................5-88
Leather......................................................5-88
Sheet Metal Damage...................................5-92
Tires..........................................................5-92
Underbody Maintenance...............................5-93
Vehicle Care/Appearance Materials................5-94
Vinyl..........................................................5-88
Washing Your Vehicle...................................5-89
Weatherstrips..............................................5-89
Windshield, Backglass, and Wiper Blades.......5-91
Ashtrays........................................................3-20
Assist Handles...............................................2-55
Audio System(s).............................................3-65
Audio Steering Wheel Controls....................3-136
Care of Your Cassette Tape Player...............3-137
Care of Your CD and DVD Player................3-139
1

E
Electrical System
Add-On Equipment......................................5-96
Engine Compartment Fuse Block...................5-97
Fuses and Circuit Breakers...........................5-97
Headlamps.................................................5-96
Power Windows and Other Power Options......5-96
Rear Underseat Fuse Block.........................5-106
Windshield Wiper Fuses...............................5-96
Engine
Air Cleaner/Filter.........................................5-20
Battery.......................................................5-41
Change Engine Oil Light...............................3-46
Check and Service Engine Soon Light............3-42
Coolant......................................................5-25
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-41
Engine Compartment Overview......................5-12
Exhaust.....................................................2-34
Fan Noise..................................................5-35
Oil .............................................................5-16
Overheating................................................5-28
Reduced Power Light...................................3-47
Starting......................................................2-20
Entry Lighting.................................................3-19
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-26
F
Filter
Engine Air Cleaner......................................5-20
Finish Damage...............................................5-93
Fixed Mast Antenna.......................................3-139
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-70
Flat Tire, Changing.........................................5-71
Flat Tire, Storing.............................................5-82
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-36
Windshield Washer......................................5-36
Fog Lamps....................................................3-17
Four-Wheel Drive....................................2-26, 5-48
Front Axle......................................................5-48
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Check Gas Cap Light...................................3-51
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-50
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-51
5

N
Navigation/Radio System................................3-134
New Vehicle Break-In......................................2-18
Normal Maintenance Replacement Parts............6-14
O
Odometer......................................................3-34
Odometer, Trip...............................................3-34
Off-Road Recovery..........................................4-13
Oil
Change Engine Oil Light...............................3-46
Engine.......................................................5-16
Pressure Gage............................................3-45
Older Children, Restraints................................1-26
Online Owner Center........................................ 7-4
OnStar
®System.............................................2-47
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-16
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-28
Outside
Convex Mirror.............................................2-47
Curb View Assist Mirror................................2-46
Heated Mirrors............................................2-47
Manual Mirrors............................................2-45
Power Mirrors.............................................2-46
Overhead Console..........................................2-54Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-31
Shifting Out of............................................2-33
Parking
Brake........................................................2-30
Over Things That Burn.................................2-33
Passenger Airbag Status Indicator.....................3-37
Passenger Sensing System..............................1-58
Passing.........................................................4-14
Passlock
®......................................................2-18
Personalization, Climate Controls......................3-31
Power
Accessory Outlets........................................3-19
Electrical System.........................................5-96
Lumbar Controls........................................... 1-2
Rear Quarter Windows.................................2-16
Reduced Engine Light..................................3-47
Retained Accessory (RAP)............................2-19
Seat............................................................ 1-2
Steering Fluid.............................................5-36
Windows....................................................2-15
Pretensioners, Safety Belt................................1-26
Programmable Automatic Door Locks.................. 2-9
Programming the HomeLink
®Transmitter...........2-50
9

Servicing Your Airbag-Equipped Vehicle..............1-62
Setting the Time.............................................3-65
Sheet Metal Damage.......................................5-92
Shifting Into Park (P).......................................2-31
Shifting Out of Park (P)...................................2-33
Signals, Turn and Lane-Change.......................... 3-7
Spare Tire.....................................................5-85
Installing....................................................5-75
Removing...................................................5-72
Storing.......................................................5-82
Specications, Capacities...............................5-113
Speedometer..................................................3-34
Starting Your Engine.......................................2-20
Steering........................................................4-11
Steering Wheel Controls, Audio.......................3-136
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-54
Convenience Net.........................................2-58
Glove Box..................................................2-54
Luggage Carrier..........................................2-55
Overhead Console.......................................2-54
Rear Compartment Storage Panel/Cover.........2-56
Rear Floor Storage Lid.................................2-58
Stuck in Sand, Mud, Ice or Snow......................4-43
Sun Visors.....................................................2-16
Sunroof.........................................................2-60T
Tachometer....................................................3-34
Taillamps
Turn Signal, and Stoplamps..........................5-50
Theft-Deterrent, Radio....................................3-135
Theft-Deterrent Systems...................................2-16
Content Theft-Deterrent................................2-16
Passlock
®...................................................2-18
Throttle, Adjustable..........................................2-21
Tilt Wheel........................................................ 3-6
Tires.............................................................5-54
Aluminum Wheels, Cleaning..........................5-91
Buying New Tires........................................5-64
Chains.......................................................5-68
Changing a Flat Tire....................................5-71
Cleaning....................................................5-92
If a Tire Goes Flat.......................................5-70
Ination -- Tire Pressure...............................5-61
Inspection and Rotation................................5-62
Installing the Spare Tire................................5-75
Removing the Flat Tire.................................5-75
Removing the Spare Tire and Tools...............5-72
Secondary Latch System..............................5-80
Spare Tire..................................................5-85
Storing a Flat or Spare Tire and Tools............5-82
Tire Sidewall Labelling..................................5-55
12