lock HUMMER H3 2009 Owners Manual

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.
{CAUTION
Incorrect or improperly tightened
wheel nuts can cause the wheel
to come loose and even come off.
This could lead to a crash. If you
have to replace them, be sure to
get new original equipment wheel
nuts. Stop somewhere as soon
as you can and have the nuts
(Continued)
CAUTION (Continued)
tightened with a torque wrench to
the proper torque specication.
SeeCapacities and Specifications
on page 5-96for wheel nut torque
specication.
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 specication.
SeeCapacities and Specifications
on page 5-96for the wheel nut
torque specication.13. Tighten the nuts rmly 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
ush with the wheel.
Service and Appearance Care 5-75

Secondary Latch
System (H3T)
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.
SeeStoring a Flat or Spare Tire
and Tools (H3) on page 5-78
orStoring a Flat or Spare Tire and
Tools (H3T) on page 5-80for
instructions on storing the spare tire
correctly.
{CAUTION
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:
{CAUTION
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
the under 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.
5-76 Service and Appearance Care

5. Turn the lug wrench clockwise to
raise the jack until it lifts the
secondary latch spring.
6. Keep raising the jack until the
spare tire stops moving upward
and is held rmly 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
lug wrench counterclockwise.
Keep lowering the jack until the
spare tire slides off the jack.8. Disconnect the lug wrench from
the jack and carefully remove
the jack. Use one hand to push
against the spare tire while
rmly 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.
Service and Appearance Care 5-77

4. Use the wheel wrench to tighten
the nuts rmly. Try to move the
tire back and forth slightly to
be sure it is secure.
5. Reinstall the center tire cover
onto the spare or at tire.
6. If the vehicle has a spare tire
cover close the cover and
latch the side latch.To store the jack tool bag and jack:
1. Return the tools to the jack
tool bag.
2. Secure the tool bag to the jack
by 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 to
fasten 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.
Service and Appearance Care 5-79

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 handle
extensions (F) and wheel
wrench (G).5. Insert the hoist end of the
extension 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.
8. Push, pull (A) and then try to
turn (B) the tire. If the tire
moves, use the wheel wrench
to tighten the cable.
Service and Appearance Care 5-81

To store the jack tool bag and jack:
1. Return the tools to the jack
tool bag.
2. Secure the tool bag to the jack
by securely wrapping the straps
around the jack. Then, slide
the straps through the rings on
the bag and secure.
3. Reinstall the wing nut retainer to
fasten the jack and tool bag
under the rear seat.
Make sure that the wing nut
passes through the tool bag and
the jack before tightening it.
4. Turn the wing nut retainer
clockwise to secure.Spare Tire
The 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 5-51andLoading the Vehicle
on page 4-35for 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 5-72andStoring a Flat or
Spare Tire and Tools (H3) on
page 5-78orStoring a Flat or Spare
Tire and Tools (H3T) on page 5-80.
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 does not have a Tire
Pressure Monitor System sensor.
You may get a low pressure warning
light. SeeTire Pressure Monitor
Operation on page 5-54. Have the
damaged or at road tire repaired or
replaced as soon as you can.
Do not mix tires and wheels of
different sizes, because they will not
t. Keep your spare tire and its
wheel together.
5-82 Service and Appearance Care

Engine Compartment
Fuse Block
The engine compartment fuse block
is located on the driver side of the
engine compartment. SeeEngine
Compartment Overview on
page 5-10for more information
on location.To remove the cover, push in on the
tabs at the ends of the cover and
lift. To reinstall the cover, line up the
tabs and push down on the cover
until the tabs clicks into place.
Notice:Spilling liquid on any
electrical components on
the vehicle may damage it.
Always keep the covers on any
electrical component.
5-92 Service and Appearance Care

Fuse Usage1 Heated Seats
2 Grille Guard
3 Stop Lamp (H3T Only)
4 Roof Rack LampsFuse Usage5 Battery Ignition Switch
6 Front Wiper
7 Regulated Voltage
Control PowerFuse Usage
8 Power Locks
9 Sunroof, Front
Washer Pump
10 Accessories (SPO)
Service and Appearance Care 5-93

Fuse Usage
11 Not Used
12Transfer Case Control
Module
13 Radio
14 Body Control Module
15Rear Wiper Motor
(H3 Only)
16Rear Wiper Pump
Switch (H3 Only)
17Air Injection Reactor
(AIR) Pump Relay/
Transmission Control
Module (TCM)
(V8 Only)
18 Rear Vision Camera
19 Cluster
20Rear Turn Lamp,
Hazard Lamp
21Powertrain Control
Module 1
22Mass Air Flow Sensor,
Canister Vent Purge
SolenoidFuse Usage
23 Injector/V8 Coil
24 Fog Lamp
25Powertrain Control
Module B
26Transmission Control
Module (TCM)
27 Airbags
28 Not Used
29Antilock Brakes,
StabiliTrak
®
30 Rear Window Defogger
31 Canister Vent
32Regulated Voltage
Control Sensor
33 Ignition 1 (V8 Only)
34 Transmission
35Cruise Control,
Miscellaneous
36 Horn
37Driver Side Rear
Park Lamp
Fuse Usage
38 Amplier
39Daytime Running
Lamps
40Passenger Side
Headlamp
41 Driver Side Headlamp
42 Trailer Back-Up Lamp
43 Front Park Lamps
44Air Injection Reactor
(AIR) Solenoid
45Auxiliary Power 2/
Cigarette Lighter
46Electronic Throttle
Control
47 Oxygen Sensor
48 Air Conditioning Clutch
49 Rear Park Lamp
50 Stop Lamp
51Auxiliary Power 1/
Cigarette Lighter
52StabiliTrak
®, Antilock
Brakes
5-94 Service and Appearance Care

Fuse Usage
53Power Heated Seat,
Belt Switch
54Fuel System Control
Module (FSCM)
55 Trailer Parking Lamps
56Front Turn Signal,
Hazard Signal/
Courtesy Mirror
57 Power Sunroof
58Transfer Case Control
Module Switch
59Climate Control,
Control Head
60 Back-Up Lamp
61 Power Seats
62 AIR Pump
63Passenger Side
Power Window
64Antilock Brakes,
StabiliTrak
®2 Solenoid
67Antilock Brakes,
StabiliTrak
®1 Motor
Fuse Usage
68Driver Side Power
Window
82 Climate Control Fan
83Electronic Brake
Controller
84 Trailer B+ Fuse
85 Starter
91 Generator Megafuse
Relay Usage
66 Stop Lamp (H3T Only)
69 Fog Lamp
70High, Low Beam
Headlamps
71 Rear Defogger
72Windshield Wiper
On/Off
73Windshield Wiper
High/Low
74 Horn
75 Headlamp
Relay Usage
76 Air Conditioning Clutch
77Powertrain Control
Module (Starter)
78 Run, Crank
79Daytime Running
Lamps
80Air Injection Reactor
(AIR) Solenoid
81 Powertrain
86 Back Up Lamps
87Ignition 3 Heating,
Ventilation,
Air Conditioning
88Retained Accessory
Power/Accessory
89 Park Lamp
Diode Usage
65 Wiper Diode
90Air Conditioning Clutch
Diode
Service and Appearance Care 5-95