HUMMER H3 2010 Owners Manual

Vehicle Care 10-65
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.
{WARNING
Lifting a vehicle and getting
under it to do maintenance or
repairs is dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.If a tire goes flat, avoid further
tire and wheel damage by driving
slowly to a level place. Turn on
your hazard warning flashers.
See
Hazard Warning Flashers
on
page 6‑5.
{WARNING
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 firmly.
2. Put the shift lever in P (Park).
3. If you have a four-wheel-drive vehicle,
be sure the transfer case
is in a drive gear –not in
N (Neutral).
(Continued)
WARNING (Continued)
4. Turn off the engine and donot 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 the vehicle has a flat tire, the
wheel blocks need to be set up
before changing it. The wheel
blocks are located in the tool bag in
the swing-gate for H3 models or
below the rear seat for H3T models.

10-66 Vehicle Care
SeeTire Changing (H3T)on
page 10‑66or Tire Changing (H3)on page 10‑75for more information.
To use the wheel blocks, lift the
wheel block and lock it into place.
Use the following example as a
guide to assist in the placement of
the wheel blocks (A) when the
vehicle has a flat tire (B).
A. Wheel Block
B. Flat Tire
The following information explains
how to use the jack and change
a tire.
Tire Changing (H3T)
Removing the Spare Tire and
Tools
To access the jack and tools located
under the rear seat:
1. Turn the wing nut (A)
counterclockwise to release the
jack and tools.
2. Remove the jack and tool kit from the bracket.
3. Release the straps (B) that secure the tool bag to the jack.

Vehicle Care 10-67
The following tools are used to
remove the spare tire and flat tire.
A. Wheel Wrench
B. Jack Handle Extensions
C. Jack Handle
D. Jack
E. Wheel BlocksTo access the spare tire:A. Spare Tire/Flat Tire (Valve Stem
Pointed Down)
B. Tire/Wheel Retainer
C. Hoist Cable
D. Hoist Assembly
E. Hoist Shaft
F. Jack Handle Extension(s)
G. Wheel Wrench
H. Hoist Shaft Access Ramp
I. Hoist End of the Extension Tool
1. Assemble the two jack handle extensions (F) and wheel
wrench (G).

10-68 Vehicle Care
2. Insert the hoist end of theextension tool (I) through the
hoist shaft access ramp (H). 3. The hoist end of the extension
tool (I) must connect to the hoist
shaft (E). The hoist end of the
extension tool is used to lower
the spare tire.
Do not use the chiseled end of
the wheel wrench.
4. Turn the wheel wrench (G) counterclockwise to lower the
spare tire (A) to the ground.
Continue to turn the wheel
wrench (G) until the spare tire (A)
can be pulled from under the
vehicle.
If the spare tire does not lower to
the ground, the secondary latch
is engaged. See Secondary
Latch System on page 10‑84.
5. Pull the spare tire towards you.6. Tilt the tire, with slack in the cable, to access the tire/wheel
retainer (B).

Vehicle Care 10-69
7. Separate the retainer from theguide pin by sliding the retainer
up the pin while pressing down
on the latch. When the retainer
is separated from the guide pin,
tilt the retainer and pull it through
the center of the wheel along
with the cable and guide pin.
8. Put the spare tire near the flat tire.
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before
proceeding. See If a Tire Goes
Flat
on page 10‑64for more
information.
2. Remove the center cap by placing the flat end of the wheel
wrench in the slot on the wheel
and gently pry the center
cap out.
3. Turn the wheel wrench
counterclockwise to loosen the
wheel nuts. Do not remove
them yet.
If the 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.

10-70 Vehicle Care
Jacking Locations (Overall View)A. Front Position - Lower Control Arm
B. Rear Position - Lower Axle
4. Locate the vehicle's jacking positions (A and B). 5. Assemble the jack and tools as
follows:
Front Position
Front Tire Flat: If the flat tire
is on a front tire of the vehicle,
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.
Rear Positions
Refer to the graphic above to
locate the placement of the jack
if the flat tire is on the rear of the
vehicle.

Vehicle Care 10-71
Rear Tire Flat:Use the jack
handle and both jack handle
extensions. Attach the wheel
wrench to the jack extensions.
Attach the jack handle to the
jack. From the rear of the vehicle
align the jack under the rear
axle. 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.
6. Turn the wheel wrench clockwise to raise the jack head
to the lifting point.
{WARNING
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.
{WARNING
Raising your vehicle with the
jack improperly positioned can
damage the vehicle and even
make the vehicle fall. To help
avoid personal injury and vehicle
damage, be sure to fit the jack lift
head into the proper location
before raising the vehicle.
7. Remove all the wheel nuts and take off the flat tire.
{WARNING
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, use a cloth or a
paper towel to do this; but be sure
to use a scraper or wire brush
later, if needed, to get all the rust
or dirt off. See If a Tire Goes Flat
on page 10‑64.
8. Remove any rust or dirt from the wheel bolts, mounting surfaces
and spare wheel.

10-72 Vehicle Care
{WARNING
Never use oil or grease on bolts
or nuts because the nuts might
come loose. The vehicle's wheel
could fall off, causing a crash.
9. Put the spare tire on the mounting surface.
10. Put the wheel nuts back on with the rounded end of the
nuts toward the wheel after
mounting the spare.
11. Tighten each wheel nut by hand. Then use the wheel
wrench to tighten the nuts until
the wheel is held against
the hub.
12. Turn the wheel wrench counterclockwise to lower
the vehicle. Lower the jack
completely.
{WARNING
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
come off. The wheel nuts should
be tightened with a torque wrench
to the proper torque specification
after replacing. Follow the torque
specification supplied by the
aftermarket manufacturer when
using accessory locking wheel
nuts. See Capacities and
Specifications
on page 12‑2for
original equipment wheel nut
torque specifications.
Notice: Improperly tightened
wheel nuts can lead to brake
pulsation and rotor damage. To
avoid expensive brake repairs,
evenly tighten the wheel nuts in
the proper sequence and to the
proper torque specification. See
Capacities and Specifications
on
page 12‑2for the wheel nut
torque specification.
13. Tighten the nuts firmly in a crisscross sequence as shown
by turning the wheel wrench
clockwise.
14. After installing the wheel and tire, reinstall the center cap.
Place the cap on the wheel and
tap it into place until it sits flush
with the wheel.

Vehicle Care 10-73
Storing a Flat or Spare Tire
and Tools
{WARNING
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
A. Spare Tire/Flat Tire (Valve StemPointed Down)
B. Tire/Wheel Retainer
C. Hoist Cable
D. Hoist Assembly
E. Hoist Shaft
F. Jack Handle Extension(s)
G. Wheel Wrench
H. Hoist Shaft Access Ramp
I. Hoist End of the Extension Tool To store the flat or spare tire on the
spare tire mount:
1. Place the flat or spare tire (A) on
the ground at the rear of the
vehicle with the valve stem
pointed down and to the rear.

10-74 Vehicle Care
2. Tilt the tire. Separate thetire/wheel retainer (B) from the
guide pin. Pull the pin through
the center of the wheel. Tilt the
tire/wheel retainer (B) down
through the center wheel
opening.
3. Make sure the tire/wheel retainer (B) is fully seated across
the underside of the wheel.4. Assembly the two jack handleextensions (F) and wheel
wrench (G).5. Insert the hoist end of theextension tool (I) through the
hoist shaft access ramp (H).
6. Raise the tire part upward. Make sure the tire/wheel retainer (B) is
seated in the wheel opening.
7. Raise the tire fully against the underside of the vehicle by
turning the wheel wrench
clockwise until you hear
two clicks or feel it skip twice.
You cannot overtighten the
cable.