2006 GMC ENVOY four wheel drive

Four-Wheel Drive
Transfer Case
When to Check Lubricant
It is not necessary to regularly check 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,
you’ll need to add some lubricant. Add enough lubricant
to raise the level to the bottom of the ller plug hole.
Use care not to overtighten the plug.
What to Use
To determine what kind of lubricant to use, see
Recommended Fluids and Lubricants on page 6-12.
5-48

Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning ashers. SeeHazard Warning Flashers
on page 3-6for more information.
{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you
or other people. You and they could be badly
injured or even killed. Find a level place to
change your tire. To help prevent the vehicle
from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
3. If you have a four-wheel-drive vehicle, be
sure the transfer case is in a drive
gear— not in NEUTRAL.
4. Turn off the engine and do not restart
while the vehicle is raised.
5. Do not allow passengers to remain in
the vehicle.
CAUTION: (Continued)
CAUTION: (Continued)
6. Put the wheel blocks at the front and rear
of the tire farthest away from the one
being changed. That would be the tire
on the other side, at the opposite end of
the vehicle.
When your vehicle has a at tire, use the following
example as a guide to assist you in the placement of
wheel blocks.
The following information will tell you how to use the
jack and change a tire.
5-74

Fuses Usage
45 Rear Fog Lamps
46 Auxiliary Power 1
47 Ignition 0
48 Four-Wheel Drive
49 Blank
50 Truck Body Controller Ignition
51 Brakes
52 Truck Body Controller Run
Envoy XL
5-115

Fuses Usage
35 Transmission Control Module
36Heat Ventilation Air
Conditioning B
37 Front Parking Lamps
38 Left Turn Signal
39Heat Ventilation Air
Conditioning 1
40 Truck Body Controller 4
41 Radio
42 Trailer Park
43 Right Turn Signal
44 Heat Ventilation Air Conditioning
45 Rear Fog Lamps
46 Auxiliary Power 1Fuses Usage
47 Ignition 0
48 Four-Wheel Drive
49 Blank
50 Truck Body Controller Ignition
51 Brakes
52 Truck Body Controller Run
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
5-118

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

I
Ignition Positions.............................................2-19
Infants and Young Children, Restraints...............1-34
Ination - Tire Pressure...................................5-62
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-17
Cluster.......................................................3-32
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-56
Lamps
Battery Run-Down Protection.........................3-19
Dome ........................................................3-17
Dome Lamp Override...................................3-18
Fog ...........................................................3-17
Reading.....................................................3-18LATCH System
Child Restraints...........................................1-43
Liftgate/Liftglass..............................................2-13
Liftglass/Liftgate..............................................2-13
Light
Airbag Readiness........................................3-35
Anti-Lock Brake System Warning...................3-40
Brake System Warning.................................3-39
Change Engine Oil......................................3-46
Charging System.........................................3-38
Check Gages Warning.................................3-48
Check Gas Cap..........................................3-49
Cruise Control.............................................3-47
Gate Ajar...................................................3-48
Highbeam On.............................................3-47
Low Fuel Warning.......................................3-49
Malfunction Indicator....................................3-42
Passenger Airbag Status Indicator..................3-36
Passenger Safety Belt Reminder....................3-34
Reduced Engine Power................................3-47
Safety Belt Reminder...................................3-34
Security.....................................................3-46
Service Four-Wheel-Drive Warning Light.........3-48
StabiliTrak®Indicator....................................3-41
StabiliTrak®Service......................................3-40
Lighting
Entry.........................................................3-18
Exit...........................................................3-18
Loading Your Vehicle.......................................4-45
7

Service (cont.)
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-42
Four-Wheel-Drive Warning Light.....................3-48
Publications Ordering Information...................7-15
Servicing Your Airbag-Equipped Vehicle..............1-71
Setting the Time.............................................3-68
Sheet Metal Damage.......................................5-99
Shifting Into Park (P).......................................2-32
Shifting Out of Park (P)...................................2-33
Signals, Turn and Lane-Change.......................... 3-7
Snow Plow....................................................4-50
Spare Tire.....................................................5-92
Accessory Inator........................................5-71
Installing....................................................5-78
Removing...................................................5-75
Storing.......................................................5-88
Specications, Capacities...............................5-119
Speedometer..................................................3-33
StabiliTrak
®System.......................................... 4-9
StabiliTrak®Indicator Light................................3-41
StabiliTrak®Service Light.................................3-40
Starting Your Engine.......................................2-20
Steering........................................................4-14
Steering Wheel Controls, Audio.......................3-139
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-56
Convenience Net.........................................2-60
Glove Box..................................................2-56Storage Areas (cont.)
Luggage Carrier..........................................2-57
Overhead Console.......................................2-56
Rear Compartment Storage Panel/Cover.........2-58
Rear Floor Storage Lid.................................2-60
Stuck in Sand, Mud, Ice, or Snow.....................4-44
Sun Visors.....................................................2-16
Sunroof.........................................................2-62
Suspension....................................................4-55
TTachometer....................................................3-33
Taillamps
Turn Signal, and Stoplamps..........................5-51
Theft-Deterrent, Radio....................................3-139
Theft-Deterrent Systems...................................2-17
Content Theft-Deterrent................................2-17
Passlock
®...................................................2-18
Throttle, Adjustable..........................................2-22
Tilt Wheel........................................................ 3-6
Tires.............................................................5-55
Aluminum Wheels, Cleaning..........................5-98
Buying New Tires........................................5-66
Chains.......................................................5-71
Changing a Flat Tire....................................5-74
Cleaning....................................................5-98
Different Size..............................................5-67
If a Tire Goes Flat.......................................5-73
Ination - Tire Pressure................................5-62
12