wheel HUMMER H3 2008 Manual PDF

Each new wheel should have the same load-carrying
capacity, diameter, width, offset, and be mounted
the same way as the one it replaces.
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 5-79for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your 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.
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Tire Chains
{CAUTION:
If your vehicle has LT285/75R16 or P265/65R18
size tires, do not use tire chains. They can
damage your vehicle because there is not
enough clearance. Tire chains used on a
vehicle without the proper amount of clearance
can cause damage to the brakes, suspension,
or other vehicle parts. The area damaged by
the tire chains could cause you to lose control
of your vehicle and you or others may be
injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
CAUTION: (Continued)
CAUTION: (Continued)
instructions. To help avoid damage to your
vehicle, drive slowly, readjust, or remove the
device if it is contacting your vehicle, and do
not spin your vehicle’s wheels.
If you do nd traction devices that will t,
install them on the rear tires.
Notice:If your vehicle has a tire size other than
LT285/75R16 or P265/65R18 use tire chains only
where legal and only when you must. Use chains that
are the proper size for your 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 your 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 your vehicle.
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If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle’s tires properly.
If air goes out of a tire, it is 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 creates 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 would
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.{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is
designed only for changing a at tire. If it is
used for anything else, you or others could be
badly injured or killed if the vehicle slips off
the jack. Use the jack provided with your
vehicle only for changing a at tire.
If a tire goes at, the next part shows how to use the
jacking equipment to change a at tire safely.
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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.
{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.
CAUTION: (Continued)
CAUTION: (Continued)
4. Turn off the engine and do not restart
while the vehicle is raised.
5. Do not allow passengers to remain in the
vehicle.
To be even more certain the vehicle will not
move, put 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 you have a at tire, you will rst need to set up
the wheel blocks before changing it. They are located in
the tool bag, in the swing-gate. SeeRemoving the
Spare Tire and Tools on page 5-81for more information.
5-79

To use the wheel blocks,
lift the wheel block and
lock into place.Then, use the following as a guide to assist you in the
placement of the wheel blocks.
The following information will tell you next how to use
the jack and change a tire.
5-80

Removing the Spare Tire and Tools
The equipment you will need is located in the
swing-gate, behind a cover. To remove the equipment:
1. Open the swing-gate. SeeSwing-gate on
page 2-10for more information.
2. Remove the cover, located on the inside of the
swing-gate, by lifting the two latches.
3. Turn the wing nut counterclockwise to release the
jack tool bag and jack.
4. Remove the tool bag and jack from its compartment.5. Undo the straps that secure the jack tool bag to
the jack.
6. Open the tool bag and you will nd the following
tools, which you will use to remove the spare tire
and at tire:
A. Wheel Wrench
B. Jack Handle
ExtensionsC. Jack Handle
D. Jack
E. Wheel Blocks
5-81

The spare tire is attached to the outside of the
swing-gate. To remove the spare tire:
1. If your vehicle has a spare tire cover release the
latch by pulling the latch straight back and turning
it away from the cover at the same time.Notice:Opening the endgate before completely
closing and latching the spare tire cover may result
in damage to your vehicle. Close and latch the
spare tire cover before opening the endgate to avoid
possible damage.
2. Remove the center
cap, if equipped, by
placing the at end of
the wheel wrench
in the slot on the wheel
and gently pry the
center cap out.
5-82

3. Use the wheel wrench
to remove the wheel
nuts securing the
spare tire.
If your vehicle has locking lug nuts, the key is
supplied in the tool bag. Use the key along with the
wheel wrench to remove the wheel nuts from
the tire.
4. Pull off and gently lower the spare tire to the
ground. Set it next to the at tire.
In order to remove the spare tire, you may need
someone to assist you.Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. SeeChanging
a Flat Tire on page 5-79for more information.
2. Remove the center cap
by placing the at end
of the wheel wrench
in the slot on the wheel
and gently pry the
center cap out.
5-83

3. Turn the wheel wrench
counterclockwise to
loosen the wheel nuts.
Do not remove
them yet.
If your vehicle has locking lug nuts, the key is
supplied in the tool bag. Use the key along with
the wheel wrench to remove the wheel nuts
from the tire.
Now jack up the vehicle.A. Front Position - Lower Control Arm
B. Rear Position - Lower Axle
4. Locate the vehicle’s jacking positions (A and B).
Jacking Locations (Overall View)
5-84

5. Assemble the jack and tools as follows:
Front Tire Flat:If the at tire is on a front tire of
the vehicle, you will need to use the jack handle and
both jack handle extensions. Attach the wheel
wrench to the jack handle extensions. Attach the
jack handle to the jack. From the front of the vehicle
position the jack on the front lower control arm
along the bar that runs front to back. Turn the wheel
wrench clockwise to raise the vehicle. Raise the
vehicle far enough off the ground so there is enough
room for the spare tire to clear the ground.Refer to the graphic above to locate the placement
of the jack if the at tire is on the rear of the
vehicle. Front Position
Rear Positions
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