suspension HUMMER H2 2006 User Guide

Instrument Panel Fuse Block
The fuse block access
door is located on the
driver’s side edge of the
instrument panel. Pull
off the cover to access the
fuse block.
To remove fuses if you don’t have a fuse extractor, hold
the end of the fuse between your thumb and index
nger and pull straight out.
You may have spare fuses located behind the fuse
block access door. These can be used to replace a bad
fuse. However, make sure it is of the correct amperage.
Fuses Usage
RR Wiper Rear Window Wiper Switch
SEO ACCYSpecial Equipment
Option Accessory
WS WPR Windshield Wipers
TBC ACCYTruck Body
Controller Accessory
IGN 3 Rear Heated Seats Module
4WDFour-Wheel Drive Switch, Air
Suspension Switch/Module
5-116

*1— Gasoline Engine and Fuel Injection Rail #2.
*2— Gasoline Engine and Fuel Injection Rail #1.
*3— Gasoline Engine; Oxygen Sensors.
*4— Gasoline Engine; Oxygen Sensors.
*5— Ignition 1
*6— Powertrain Control Module, Fuel Pump.
*7— Sunroof.
*8— Not Used.
Fuses Usage
GLOW PLUG Not Used
CUST FEED Gasoline Accessory Power
HYBRID Not Used
WSW/HTRHeated Windshield Washer
(Special Edition Only)
STUD #1Accessory Power/
Trailer Wiring
MBEC 1Mid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLWR Front Climate Control Fan
Fuses Usage
LBEC 2Left Bussed Electrical
Center, Door Modules, Door
Locks, Auxiliary Power
Outlet—Rear Cargo Area
and Instrument Panel
STUD #2*Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-lock Brakes
VSES/ECASElectronically Controlled
Air Suspension
IGN A Ignition Switch
IGN B Ignition Switch
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKPassenger’s Side
Rear Parking and
Sidemarker Lamps
LR PARKDriver’s Side Rear Parking
and Sidemarker Lamps
PARK LP Parking Lamps Relay
5-121

Fuses Usage
IPC/DICInstrument Panel Cluster/
Driver Information Center
HVAC/ECASClimate Control
Controller/Electronically
Controlled Air Suspension
CIG LTR Cigarette Lighter
HI HDLP-RTPassenger’s Side High
Beam Headlamp
HDLP-LOW Headlamp Low Beam Relay
A/C COMPAir Conditioning
Compressor Relay
A/C COMP Air Conditioning Compressor
TCMB Transmission Control Module
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
Universal Home Remote
System, Rear Heated Seats
LO HDLP-LTDriver’s Side Headlamp
Low BeamFuses Usage
BTSIBrake Transmission Shift
Interlock System
CRNK Starting System
LO HDLP-RTPassenger’s Side Headlamp
Low Beam
FOG LP Not Used
FOG LP Not Used
HORN Horn Relay
W/S WASHWindshield and Rear Window
Washer Pump Relay
W/S WASHWindshield and Rear Window
Washer Pump
INFO OnStar
®
RADIO AMP Radio Amplier
RH HID Not Used
HORN Horn
EAP Not Used
TREC Four-Wheel Drive Module
SBA Not Used
5-123

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-14. Reset oil
life system. SeeEngine Oil Life System on page 5-17.An Emission
Control Service.••
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
For vehicles driven in dusty/dirty conditions: Inspect engine air cleaner lter. If
necessary, replace lter. SeeEngine Air Cleaner/Filter on page 5-19.•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-61and “Tire Wear Inspection” inAt Least Once a Month
on page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
6-5

Maintenance Footnotes
#Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage, and parking
brake cable guides. Ball joints should not be lubricated
unless their temperature is 10°F (-12°C) or higher,
or they could be damaged.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chang, etc. Visually check constant
velocity joints, rubber boots and axle seals for leaks.
(c)Visually inspect hoses and have them replaced
if they are cracked, swollen, or deteriorated. Inspect
all pipes, ttings, and clamps; replace with genuine
GM parts as needed. To help ensure proper operation,
a pressure test of the cooling system and pressure
cap and cleaning the outside of the radiator and
air conditioning condenser is recommended at least
once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace wiper blades that appear worn or damaged
or that streak or miss areas of the windshield.(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors, and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
The airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, rear compartment hinges, outer liftgate
handle pivot points, rear door detent link, roller
mechanism, liftgate handle pivot points, latch bolt, fuel
door hinge, cargo door hinge, locks, and folding
seat hardware. More frequent lubrication may be
required when exposed to a corrosive environment.
Applying silicone grease on weatherstrips with a clean
cloth will make them last longer, seal better, and
not stick or squeak.
Spare tire carrier hinge and latch: Inspect for leaks and
lubricate if required. Remove the setscrew at the
hinge casting and add lubricant, moving the hinge back
and forth periodically, until lubricant can be seen
coming from the setscrew opening. Install setscrew and
tighten to 7 ft lb (9Y). SeeRecommended Fluids
and Lubricants on page 6-12for what lubricant to use.
(g)Check vent hose at transfer case for kinks and
proper installation.
6-7

Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may call them at
1-800-333-0510 or write to:
Transport Canada
Place de Ville Tower C
330 Sparks Street
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-866-HUMMER6 (486-6376), or write:
HUMMER Customer Assistance Center
P.O. Box 33177
Detroit, MI 48232-5177
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair
service procedures, adjustments, and specications for
GM transmissions, transaxles, and transfer cases.
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1-800-463-7483).
7-15

A
Accessories and Modications............................ 5-3
Accessory Inator...........................................5-68
Accessory Power Outlet(s)...............................3-21
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-69
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-114
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................................3-22
Air Suspension...............................................4-62
Airbag
Off Light.....................................................3-32
Readiness Light..........................................3-32
Airbag Sensing and Diagnostic Module (SDM)....7-10
Airbag System................................................1-58
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-69
Airbag Off Switch........................................1-65
How Does an Airbag Restrain?......................1-63
Servicing Your Airbag-Equipped Vehicle..........1-68
What Makes an Airbag Inate?......................1-63
What Will You See After an Airbag Inates?....1-63
When Should an Airbag Inate?....................1-62
Where Are the Airbags?...............................1-60
Antenna, Fixed Mast......................................3-114
Antenna, XM™ Satellite Radio Antenna System . . . 3-114
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-36Appearance Care
Aluminum Wheels......................................5-111
Care of Safety Belts...................................5-108
Chemical Paint Spotting..............................5-112
Cleaning Exterior Lamps/Lenses..................5-109
Cleaning the Inside of Your Vehicle..............5-105
Fabric/Carpet............................................5-107
Finish Care...............................................5-110
Finish Damage..........................................5-112
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-108
Leather....................................................5-107
Sheet Metal Damage..................................5-112
Speaker Covers.........................................5-108
Tires........................................................5-111
Underbody Maintenance.............................5-112
Vehicle Care/Appearance Materials...............5-113
Washing Your Vehicle.................................5-109
Weatherstrips............................................5-108
Windshield, Backglass, and Wiper Blades......5-110
Wood Panels............................................5-108
Ashtray(s)......................................................3-22
Assist Steps...................................................4-34
Audio System(s).............................................3-61
Audio Steering Wheel Controls....................3-110
Care of Your Cassette Tape Player...............3-111
Care of Your CD and DVD Player................3-113
Care of Your CDs and DVDs.......................3-113
Chime Level Adjustment.............................3-114
Fixed Mast Antenna...................................3-114
1

Customer Assistance Information (cont.)
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15
D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-9
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-18
Dome Lamps.................................................3-18
Door
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Driver
Position, Safety Belt.....................................1-19
Driver Information Center (DIC).........................3-45
DIC Operation and Displays..........................3-45
DIC Vehicle Customization............................3-55
DIC Warnings and Messages........................3-48
Driving
At Night.....................................................4-38
City...........................................................4-41
Defensive..................................................... 4-2
Drunken....................................................... 4-3Driving (cont.)
First Aid and Tool Kit...................................4-52
Freeway.....................................................4-42
Front Mounted Receiver...............................4-53
Hill and Mountain Roads..............................4-44
In Rain and on Wet Roads...........................4-39
Off-Road....................................................4-16
Power Winch Platform..................................4-54
Recovery Loops..........................................4-51
Rocking Your Vehicle to Get it Out.................4-50
Winter........................................................4-46
Dual Automatic Climate Control System.............3-22
DVD
Rear Seat Entertainment System...................3-88
E
Electrical System
Add-On Equipment.....................................5-114
Center Instrument Panel Fuse Block.............5-118
Fuses and Circuit Breakers.........................5-115
Instrument Panel Fuse Block.......................5-116
Power Windows and Other Power Options....5-115
Underhood Fuse Block...............................5-119
Windshield Wiper Fuses.............................5-115
Electronically Controlled Air Suspension System....4-62
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-38
4

Storage Areas (cont.)
Center Overhead Console.............................2-54
Glove Box..................................................2-54
Luggage Carrier..........................................2-54
Rear Seat Armrest.......................................2-58
Stuck in Sand, Mud, Ice or Snow......................4-50
Sun Visors.....................................................2-21
Sunroof.........................................................2-61
Suspension....................................................4-62
T
Tachometer....................................................3-31
Tailgate/Spare Tire Carrier................................2-14
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-50
Theft-Deterrent, Radio....................................3-109
Theft-Deterrent Systems...................................2-21
Content Theft-Deterrent................................2-21
Passlock
®...................................................2-23
Third Row Seat................................................ 1-7
Tilt Wheel........................................................ 3-6
Tires.............................................................5-53
Aluminum Wheels, Cleaning........................5-111
Buying New Tires........................................5-63
Chains.......................................................5-67
Changing a Flat Tire....................................5-70Tires (cont.)
Cleaning...................................................5-111
Different Size..............................................5-64
If a Tire Goes Flat.......................................5-69
Ination - Tire Pressure................................5-59
Inator, Accessory.......................................5-68
Inspection and Rotation................................5-61
Installing the Spare Tire................................5-83
Removing the Flat Tire.................................5-83
Removing the Spare Tire and Tools.......5-71, 5-78
Spare Tire................................................5-105
Storing a Flat or Spare Tire and Tools.....5-96, 5-101
Tire Sidewall Labeling..................................5-54
Tire Terminology and Denitions....................5-57
Uniform Tire Quality Grading.........................5-65
Wheel Alignment and Tire Balance.................5-66
Wheel Replacement.....................................5-66
When It Is Time for New Tires......................5-62
Tonneau Cover...............................................2-60
Tool Kit .........................................................4-52
Tow/Haul Mode...............................................2-30
Tow/Haul Mode Light.......................................3-43
Towing
Recreational Vehicle.....................................4-60
Towing a Trailer..........................................4-63
Your Vehicle...............................................4-59
12