2008 GMC ENVOY wheel size

1. Attach the handle (A), wheel wrench (B), and
extension (D) in the slots provided.
2. Roll up the instruction label (C) and return to the
slot in the tool kit.
3. Assemble the wheel blocks (F) to the jack.
4. Turn the knob (E) on the jack clockwise to raise the
jack head.
5. Return the rear seat to its proper position.
Spare Tire
Your vehicle, when new, had a fully-inated spare tire.
A spare tire may lose air over time, so check its
ination pressure regularly. SeeInflation - Tire Pressure
on page 5-64andLoading Your Vehicle on page 4-34
for information regarding proper tire ination and loading
your vehicle. For instruction on how to remove, install
or store a spare tire, seeRemoving the Flat Tire and
Installing the Spare Tire on page 5-87andStoring a Flat
or Spare Tire and Tools on page 5-96.After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare is
correctly inated. The spare tire is made to perform well
at speeds up to 70 mph (112 km/h) at the recommended
ination pressure, so you can nish your trip.
Have the damaged or at road tire repaired or replaced
as soon as you can and installed back onto your
vehicle. This way, a spare tire will be available in case
you need it again. Do not mix tires and wheels of different
sizes, because they will not t. Keep your spare tire and
its wheel together.
5-99

Tires.............................................................5-57
Aluminum Wheels, Cleaning........................5-105
Buying New Tires........................................5-74
Chains.......................................................5-80
Changing a Flat Tire....................................5-82
Cleaning...................................................5-106
Different Size..............................................5-76
High-Speed Operation..................................5-66
If a Tire Goes Flat.......................................5-81
Ination - Tire Pressure................................5-64
Inator,- Accessory.......................................5-80
Inspection and Rotation................................5-72
Installing the Spare Tire................................5-87
Pressure Monitor Operation...........................5-69
Pressure Monitor System..............................5-67
Removing the Flat Tire.................................5-87
Removing the Spare Tire and Tools...............5-84
Secondary Latch System..............................5-92
Spare Tire..................................................5-99
Storing a Flat or Spare Tire and Tools............5-96
Tire Sidewall Labeling..................................5-58
Tire Terminology and Denitions....................5-61
Uniform Tire Quality Grading.........................5-77
Wheel Alignment and Tire Balance.................5-78
Wheel Replacement.....................................5-78
When It Is Time for New Tires......................5-73Towing
Recreational Vehicle.....................................4-40
Towing a Trailer..........................................4-45
Your Vehicle...............................................4-40
Traction
StabiliTrak
®System....................................... 4-6
Transmission
Fluid, Automatic...........................................5-23
Transmission Operation, Automatic....................2-26
Trip Odometer................................................3-32
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Uniform Tire Quality Grading............................5-77
Universal Home Remote System.......................2-52
Operation...................................................2-52
Using this Manual............................................... iii
13

V
Vehicle
Control........................................................ 4-3
Damage Warnings........................................... iv
Loading......................................................4-34
Symbols......................................................... iv
Vehicle Customization, DIC..............................3-58
Vehicle Data Recording and Privacy..................7-18
Vehicle Identication
Number (VIN)............................................5-108
Service Parts Identication Label..................5-108
Ventilation Adjustment......................................3-28
Visors...........................................................2-15
Voltmeter Gage..............................................3-37
W
Warning Lights, Gages and Indicators................3-30
Warnings
DIC Warnings and Messages........................3-53
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer, Headlamps........................................3-11Wheels
Alignment and Tire Balance..........................5-78
Different Size..............................................5-76
Replacement...............................................5-78
Where to Put the Restraint...............................1-40
Windows.......................................................2-13
Power........................................................2-14
Windshield
Backglass, and Wiper Blades, Cleaning........5-105
Washer........................................................ 3-9
Washer Fluid..............................................5-37
Wiper Blade Replacement.............................5-54
Wiper Fuses.............................................5-109
Wipers......................................................... 3-9
Windshield, Rear Washer/Wiper........................3-10
Winter Driving................................................4-30X
XM Radio Messages.......................................3-86
XM™ Satellite Radio Antenna System..............3-103
Y
Your Vehicle and the Environment....................... 6-2
14