cv axle GMC ENVOY 2006 Owner's Guide

Rear Axle
When to Check Lubricant
It is not necessary to regularly check rear axle uid
unless you suspect there is a leak or you hear an
unusual noise. A uid loss could indicate a problem.
Have it inspected and repaired.
How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.The proper level is from 0 to 3/8 inch (0 to 10 mm)
below the bottom of the ller plug hole, located on the
rear axle.
What to Use
To determine what kind of lubricant to use, see
Recommended Fluids and Lubricants on page 6-12.
5-47

Front Axle
When to Check Lubricant
It is not necessary to regularly check front axle uid
unless you suspect there is a leak or you hear an
unusual noise. A uid loss could indicate a problem.
Have it inspected and repaired.
How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.If the level is below the bottom of the ller plug hole,
located on the front axle, you may need to add
some lubricant.
When the differential is cold, add enough lubricant to
raise the level to 1/2 inch (12 mm) below the ller
plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level to the
bottom of the ller plug hole.
What to Use
To determine what kind of lubricant to use, see
Recommended Fluids and Lubricants on page 6-12.
5-49

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 5-62.
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 4-45.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-45.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-45.
5-59

2. Using the wheel
wrench, loosen all the
wheel nuts. Do not
remove them yet.
3. Turn the jack adjusting knob clockwise by hand to
raise the jack lift head.
4. Place the handle, extension and wheel wrench onto
the jack.A. Front Frame/
Rear Axle
B. JackC. Handle
D. Extension(s)
E. Wheel Wrench
5. Place the jack in the appropriate position nearest
the at tire.
{CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
Front PositionRear Position
5-79

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
WasherGM 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
®-VI Automatic
Transmission Fluid.
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.
7-15

Electrical System (cont.)
Rear Underseat Fuse Block.........................5-111
Windshield Wiper Fuses.............................5-102
Electronically Controlled Air Suspension
System......................................................4-55
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-41
Change Engine Oil Light...............................3-46
Check and Service Engine Soon Light............3-42
Coolant......................................................5-25
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-41
Engine Compartment Overview......................5-12
Exhaust.....................................................2-34
Fan Noise..................................................5-35
Oil .............................................................5-16
Oil Life System...........................................5-20
Overheating................................................5-28
Reduced Power Light...................................3-47
Starting......................................................2-20
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-31F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-99
Fixed Mast Antenna.......................................3-143
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-73
Flat Tire, Changing.........................................5-74
Flat Tire, Storing.............................................5-88
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-36
Windshield Washer......................................5-37
Fog Lamps ....................................................3-17
Four-Wheel Drive....................................2-27, 5-48
Front Axle......................................................5-49
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-49
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-49
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-49
5

Locking Rear Axle............................................ 4-9
Lockout Protection..........................................2-12
Locks
Delayed Locking........................................... 2-9
Door ........................................................... 2-8
Lockout Protection.......................................2-12
Power Door .................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-18
Low Fuel Warning Light...................................3-49
Luggage Carrier..............................................2-57
Lumbar
Manual Controls............................................ 1-3
Power Controls............................................. 1-4
MMaintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9Maintenance Schedule (cont.)
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-42
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Memory Seat.................................................2-62
Message
DIC Warnings and Messages........................3-54
Mirrors
Automatic Dimming Rearview with Compass....2-43
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-44
Automatic Dimming Rearview with OnStar
®
and Compass..........................................2-39
Automatic Dimming Rearview with OnStar®,
Compass and Temperature Display.............2-40
Manual Rearview Mirror................................2-36
Manual Rearview Mirror with OnStar
®.............2-36
Manual Rearview Mirror with OnStar®,
Compass, and Temperature Display............2-37
Outside Convex Mirror.................................2-48
Outside Curb View Assist Mirror....................2-48
Outside Heated Mirrors................................2-48
Outside Manual Mirrors................................2-47
Outside Power Mirrors..................................2-47
MyGMLink.com................................................ 7-3
8

Power (cont.)
Seat ............................................................ 1-3
Steering Fluid.............................................5-36
Windows....................................................2-15
Pretensioners, Safety Belt................................1-31
Programmable Automatic Door Locks.................2-10
Q
Questions and Answers About Safety Belts.........1-18
R
Radiator Pressure Cap....................................5-28
Radios..........................................................3-66
Care of Your Cassette Tape Player...............3-141
Care of Your CD and DVD Player................3-142
Care of Your CDs and DVDs .......................3-142
Navigation/Radio System, see
Navigation Manual..................................3-124
Radio with Cassette and CD.........................3-96
Radio with CD....................................3-68, 3-80
Radio with Six-Disc CD..............................3-110
Rear Seat Audio........................................3-137
Setting the Time..........................................3-68
Theft-Deterrent..........................................3-139
Understanding Reception............................3-140
Rainsense™ Wipers.......................................... 3-9
Reading Lamps..............................................3-18Rear Axle......................................................5-47
Locking........................................................ 4-9
Rear Climate Control System............................3-28
Rear Compartment Storage Panel/Cover............2-58
Rear Door Security Locks................................2-12
Rear Floor Storage Lid....................................2-60
Rear Safety Belt Comfort Guides......................1-28
Rear Seat Audio (RSA)..................................3-137
Rear Seat Entertainment System.....................3-124
Rear Seat Operation......................................... 1-9
Rear Seat Passengers, Safety Belts..................1-26
Rear Windshield Washer/Wiper.........................3-10
Rearview Mirror, Automatic Dimming
with Compass.............................................2-43
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-44
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-39
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display.....2-40
Rearview Mirror with OnStar®...........................2-36
Rearview Mirror with OnStar®, Compass,
and Temperature Display..............................2-37
Rearview Mirrors.............................................2-36
Reclining Seatbacks.......................................... 1-5
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-50
Reduced Engine Power Light............................3-47
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
10