2010 HUMMER H3 clock

10-76 Vehicle Care
3. Turn the wing nutcounterclockwise to release the
jack tool bag and jack and
remove them.
4. Release the straps that secure the jack tool bag to the jack. 5. Open the tool bag to find the
following tools, which are used
to remove the spare tire and
flat tire:
A. Wheel Wrench
B. Jack Handle Extensions
C. Jack Handle
D. Jack
E. Wheel Blocks The spare tire is attached to the
outside of the tailgate. To remove
the spare tire:1. If the 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.

10-78 Vehicle Care
3. Turn the wheel wrenchcounterclockwise 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.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.

Vehicle Care 10-79
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.
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.

10-80 Vehicle Care
7. Remove all the wheel nuts andtake 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.
{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.

Vehicle Care 10-81
{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. SeeCapacities 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 10-83
To store the jack tool bag and jack:
1. Return the tools to the jacktool bag.
2. Secure the tool bag to the jackby securely wrapping the straps
around the jack. Then, slide the
straps through the rings on the
bag and secure. 3. Position the jack and jack tool
bag in the swing-gate.
When reinstalling the jack and
jack tool bag, make sure the jack
base is securely seated behind
the tabs in the swing-gate.
4. Reinstall the wing nut retainer tofasten the jack and tool bag in
the storage compartment.
Make sure that the wing nut
passes through the tool bag and
the jack before tightening it. 5. Turn the wing nut retainer
clockwise to secure.
6. Reinstall the compartment cover by inserting the locator tabs in
the holes in the swing-gate.
Push the latches down to
secure.

10-84 Vehicle Care
Secondary Latch System
This vehicle has an underbody
mounted tire hoist assembly that
has a secondary latch system. It is
designed to stop the spare tire from
suddenly falling off the vehicle if
the cable holding the spare tire is
damaged. For the secondary latch
to work, the tire must be stowed
with the valve stem pointing down.
SeeTire Changing (H3T)
on
page 10‑66or Tire Changing (H3)on page 10‑75for instructions on
storing the spare tire correctly.
{WARNING
Before beginning this procedure
read all the instructions. Failure to
read and follow the instructions
could damage the hoist assembly
and you and others could get
hurt. Read and follow the
instructions listed next. To release the spare tire from the
secondary latch:
{WARNING
Someone standing too close
during the procedure could be
injured by the jack. If the spare
tire does not slide off the jack
completely, make sure no one is
behind you or on either side of
you as you pull the jack out from
under the spare.
1. If the cable is not visible, start this procedure at Step 3.
2. Turn the lug wrench
counterclockwise until
approximately 6 inches (15 cm)
of cable is exposed.
3. Attach the lug wrench to the jack and raise the jack at least
10 turns.
4. Place the jack under the vehicle, ahead of the rear bumper.
Position the center lift point of
the jack under the center of the
spare tire.

Vehicle Care 10-85
5. Turn the lug wrench clockwise toraise the jack until it lifts the
secondary latch spring.
6. Keep raising the jack until the spare tire stops moving upward
and is held firmly in place. This
lets you know that the secondary
latch has released and the spare
tire is balancing on the jack.
7. Lower the jack by turning the lugwrench counterclockwise. Keep
lowering the jack until the spare
tire slides off the jack.
8. Disconnect the lug wrench fromthe jack and carefully remove
the jack. Use one hand to push
against the spare tire while
firmly pulling the jack out from
under the spare tire with the
other hand. 9. Tilt the retainer and slip it
through the wheel opening
when the spare tire has been
completely lowered.
10. Turn the lug wrench clockwise to raise the cable back up if the
cable is hanging.
Have the hoist shaft assembly
inspected as soon as you can. You
will not be able to store a spare tire
using the hoist assembly until it has
been repaired or replaced.
Full-Size Spare Tire
The vehicle, when new, had a
fully-inflated spare tire. A spare tire
may lose air over time, so check its
inflation pressure regularly. See Tire
Pressure
on page 10‑51and Vehicle
Load Limitson page 9‑27for
information regarding proper tire
inflation and loading your vehicle.
For instruction on how to remove,
install or store a spare tire, see Tire
Changing (H3T)
on page 10‑66or
Tire Changing (H3) on page 10‑75.