tire size HUMMER H2 2009 User Guide

You need new tires if any of the following statements
are true:
You can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the
tire’s rubber.
The tread or sidewall is cracked, cut, or snagged
deep enough to show cord or fabric.
The tire has a bump, bulge, or split.
The tire has a puncture, cut, or other damage that
cannot be repaired well because of the size or
location of the damage.
The rubber in tires degrades over time, even if they are
not being used. This is also true for the spare tire, if
your vehicle has one. Multiple conditions affect how fast
this aging takes place, including temperatures, loading
conditions, and ination pressure maintenance. With
proper care and maintenance tires will typically wear out
before they degrade due to age. If you are unsure
about the need to replace your tires as they get older,
consult the tire manufacturer for more information.
Buying New Tires
GM has developed and matched specic tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed to
meet General Motors Tire Performance Criteria
Specication (TPC spec) system rating. If you need
replacement tires, GM strongly recommends that
you get tires with the same TPC Spec rating. This
way, your vehicle will continue to have tires that are
designed to give the same performance and vehicle
safety, during normal use, as the original tires.
GM’s exclusive TPC Spec system considers over a
dozen critical specications that impact the overall
performance of your vehicle, including brake
system performance, ride and handling, traction
control, and tire pressure monitoring performance.
GM’s TPC Spec number is molded onto the tire’s
sidewall near the tire size. If the tires have an
all-season tread design, the TPC spec number will
be followed by a MS, for mud and snow. SeeTire
Sidewall Labeling on page 5-58for additional
information.
5-72

GM recommends replacing tires in sets of four.
This is because uniform tread depth on all tires will
help keep your vehicle performing most like it did
when the tires were new. Replacing less than a full
set of tires can affect the braking and handling
performance of your vehicle. SeeTire Inspection
and Rotation on page 5-69for information on
proper tire rotation.
{CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different
sizes, brands, or types (radial and bias-belted
tires) the vehicle may not handle properly,
and you could have a crash. Using tires of
different sizes, brands, or types may also
cause damage to your vehicle. Be sure to
use the correct size, brand, and type of tires
on your vehicle’s wheels.
{CAUTION:
If you use bias-ply tires on the vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on the vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make
sure they are the same size, load range, speed
rating, and construction type (radial and
bias-belted tires) as your vehicle’s original tires.
Vehicles equipped with a tire pressure monitoring
system may give an inaccurate low-pressure
warning if non-TPC spec rated tires are installed
on your vehicle. Non-TPC Spec rated tires
may give a low-pressure warning that is higher or
lower than the proper warning level you would
get with TPC Spec rated tires. SeeTire Pressure
Monitor System on page 5-64.
Your vehicle’s original equipment tires are listed
on the Tire and Loading Information Label.
SeeLoading the Vehicle on page 4-44, for more
information about the Tire and Loading Information
Label and its location on your vehicle.
5-73

Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this could
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability, and
resistance to rollover. Additionally, if your vehicle
has electronic systems such as anti-lock brakes, rollover
airbags, traction control, and electronic stability control,
the performance of these systems can be affected.
{CAUTION:
If you add different sized wheels, your vehicle may
not provide an acceptable level of performance
and safety if tires not recommended for those
wheels are selected. You may increase the
chance that you will crash and suffer serious
injury. Only use GM specic wheel and tire
systems developed for your vehicle, and have
them properly installed by a GM certied
technician.
SeeBuying New Tires on page 5-72andAccessories
and Modifications on page 5-3for additional information.
Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use spare
tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
5-74

If you need to replace any of your wheels, wheel bolts,
wheel nuts, or Tire Pressure Monitor System (TPMS)
sensors, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts, wheel nuts, and TPMS
sensors for your vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts on your vehicle can be dangerous. It
could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts, and wheel nuts for
replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-80for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far
it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel, use
a new GM original equipment wheel.
Tire Chains
Notice:Use tire chains only where legal and only
when you must. Use chains that are the proper size
for the vehicle’s tires. Install them on the tires of
the rear axle. Do not use chains on the tires of the
front axle. Tighten them as tightly as possible
with the ends securely fastened. Drive slowly and
follow the chain manufacturer’s instructions. If
you can hear the chains contacting the vehicle, stop
and retighten them. If the contact continues, slow
down until it stops. Driving too fast or spinning the
wheels with chains on will damage the vehicle.
5-77

10. Return the storage tray to its original location by
pushing down on the nger depression.
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 5-63andLoading the Vehicle on page 4-44
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 5-90andStoring
a Flat or Spare Tire and Tools (SUT) on page 5-95
orStoring a Flat or Spare Tire and Tools (SUV)
on page 5-98.
After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare is
correctly inated.
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.
5-101

Start Vehicle, Remote....................................... 2-7
Starting the Engine.........................................2-29
Steering........................................................4-11
Steering Wheel Controls, Audio.......................3-129
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
All-Weather Cargo Area................................2-66
Center Console Storage Area........................2-65
Cupholders.................................................2-64
Glove Box..................................................2-64
Luggage Carrier..........................................2-65
Rear Seat Armrest.......................................2-65
Stuck in Sand, Mud, Ice, or Snow.....................4-39
Sun Visors.....................................................2-23
Sunroof.........................................................2-68
T
Tachometer....................................................3-31
Tailgate/Spare Tire Carrier................................2-16
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-54
Theft-Deterrent, Radio....................................3-128
Theft-Deterrent Systems...................................2-23
Content Theft-Deterrent................................2-24
PASS-Key
®III+ Electronic Immobilizer............2-25
PASS-Key®III+ Electronic Immobilizer
Operation................................................2-26Third Row Seat..............................................1-14
Tilt Wheel........................................................ 3-6
Time, Setting..................................................3-73
Tire
Pressure Light.............................................3-39
Tires.............................................................5-57
Aluminum Wheels, Cleaning........................5-107
Buying New Tires........................................5-72
Chains.......................................................5-77
Changing a Flat Tire....................................5-80
Cleaning...................................................5-108
Different Size..............................................5-74
If a Tire Goes Flat.......................................5-79
Ination - Tire Pressure................................5-63
Inator,- Accessory.......................................5-78
Inspection and Rotation................................5-69
Installing the Spare Tire................................5-90
Pressure Monitor Operation...........................5-66
Pressure Monitor System..............................5-64
Removing the Flat Tire.................................5-90
Removing the Spare Tire and Tools.......5-82, 5-86
Spare Tire................................................5-101
Storing a Flat or Spare Tire and Tools....5-95, 5-98
Tire Sidewall Labeling..................................5-58
Tire Terminology and Denitions....................5-60
Uniform Tire Quality Grading.........................5-74
Wheel Alignment and Tire Balance.................5-76
Wheel Replacement.....................................5-76
When It Is Time for New Tires......................5-71
12

W
Warning Lights, Gages, and Indicators...............3-29
Warnings
DIC Warnings and Messages........................3-56
Hazard Warning Flashers............................... 3-6
Safety and Symbols......................................... iii
Wheels
Alignment and Tire Balance..........................5-76
Different Size..............................................5-74
Replacement...............................................5-76
Where to Put the Restraint...............................1-50
Windows.......................................................2-19
Power ........................................................2-20
Windshield
Backglass, and Wiper Blades, Cleaning........5-107
Washer......................................................3-10
Washer Fluid..............................................5-37Windshield (cont.)
Wiper Blade Replacement.............................5-56
Wiper Fuses.............................................5-110
Wipers.......................................................3-10
Windshield, Rear Washer/Wiper........................3-11
Winter Driving................................................4-37
X
XM Radio Messages.....................................3-105
XM™ Satellite Radio Antenna System..............3-130
Y
Your Vehicle and the Environment....................... 6-2
14