2006 HUMMER H2 check engine

Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. SeeEngine Oil on page 5-14for
further details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 5-24for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not forget to
check the spare tire. SeeTires on page 5-53for further
details. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-70.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-61.
6-9

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-34.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle
should start only in PARK (P) or NEUTRAL (N). If
the vehicle starts in any other position, contact your
GM Goodwrench
®dealer for service.
Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-34.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not start the engine. Without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench
®dealer
for service.
6-10

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service
is required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Contact your GM Goodwrench
®dealer if service
is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-11

Charging System Light....................................3-34
Check
Engine Light...............................................3-39
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-112
Child Restraints
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-35
Lower Anchors and Tethers for Children..........1-43
Older Children.............................................1-32
Securing a Child Restraint in a Rear Seat
Position..................................................1-52
Securing a Child Restraint in the Right
Front Seat Position...................................1-54
Where to Put the Restraint...........................1-42
Chime Level Adjustment.................................3-114
Cigarette Lighter.............................................3-22
Cleaning
Aluminum Wheels......................................5-111
Exterior Lamps/Lenses................................5-109
Fabric/Carpet............................................5-107
Finish Care...............................................5-110
Inside of Your Vehicle.................................5-105
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-108
Leather....................................................5-107
Speaker Covers.........................................5-108
Tires........................................................5-111
Underbody Maintenance.............................5-112
Washing Your Vehicle.................................5-109Cleaning (cont.)
Weatherstrips............................................5-108
Windshield, Backglass, and Wiper Blades......5-110
Wood Panels............................................5-108
Climate Control System
Dual Automatic............................................3-22
Outlet Adjustment........................................3-28
Collision Damage Repair..................................7-11
Comfort Guides, Rear Safety Belt.....................1-29
Content Theft-Deterrent....................................2-21
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-37
Heater, Engine............................................2-26
Surge Tank Pressure Cap.............................5-26
Cooling System..............................................5-29
Cruise Control................................................3-11
Cruise Control Light........................................3-43
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to General Motors....7-15
Reporting Safety Defects to the Canadian
Government............................................7-15
Reporting Safety Defects to the United
States Government...................................7-14
3

Engine (cont.)
Check and Service Engine Soon Light............3-39
Coolant......................................................5-24
Coolant Heater............................................2-26
Coolant Temperature Gage...........................3-37
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-37
Oil .............................................................5-14
Oil Life System...........................................5-17
Overheated Protection Operating Mode...........5-28
Overheating................................................5-27
Starting......................................................2-25
Entry/Exit Lighting...........................................3-18
Event Data Recorders (EDR)............................7-10
Extender, Safety Belt.......................................1-31
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-112
First Aid Kit....................................................4-52
Fixed Mast Antenna.......................................3-114
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-69Flat Tire, Changing.........................................5-70
Flat Tire, Storing...................................5-96, 5-101
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-33
Windshield Washer......................................5-34
Four-Wheel Drive............................................5-44
Four-Wheel Drive, Full-Time.............................2-30
Front Axle......................................................5-45
Front Mounted Receiver...................................4-53
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-44
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-44
Fuses
Center Instrument Panel Fuse Block.............5-118
Fuses and Circuit Breakers.........................5-115
Instrument Panel Fuse Block.......................5-116
Underhood Fuse Block...............................5-119
Windshield Wiper.......................................5-115
5

G
Gage
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-44
Oil Pressure...............................................3-41
Speedometer..............................................3-31
Tachometer.................................................3-31
Transmission Temperature.............................3-37
Voltmeter Gage...........................................3-34
Garage Door Opener.......................................2-50
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-54
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamps....................................................5-47
Automatic Headlamp System.........................3-16
Bulb Replacement.......................................5-46
Daytime Running Lamps.......................3-15, 5-48
Flash-to-Pass............................................... 3-8
Front Turn Signal and Parking Lamps.............5-48Headlamps (cont.)
Halogen Bulbs............................................5-46
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Roof Marker Lamps.....................................5-49
Heated Seats................................................... 1-3
Heater...........................................................3-22
Highbeam On Light.........................................3-43
Highway Hypnosis...........................................4-43
Hill and Mountain Roads..................................4-44
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-19
I
Ignition Positions.............................................2-24
Infants and Young Children, Restraints...............1-35
Ination - Tire Pressure...................................5-59
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-17
Cluster.......................................................3-30
6

M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-8
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-39
Memory Seat.................................................2-63
Message
DIC Warnings and Messages........................3-48
Midgate.........................................................2-12
Mirrors
Automatic Dimming Rearview with Compass....2-43
Automatic Dimming Rearview with OnStar
®
and Compass..........................................2-39
Automatic Dimming Rearview with OnStar®,
Compass and Temperature Display.............2-41
Outside Automatic Dimming Mirror with Curb
View Assist.............................................2-47Mirrors (cont.)
Outside Convex Mirror.................................2-46
Outside Heated Mirrors................................2-47
Outside Power Mirrors..................................2-45
MyGMLink.com................................................ 7-3
N
Navigation/Radio System, see Navigation
Manual......................................................3-88
New Vehicle Break-In......................................2-24
Normal Maintenance Replacement Parts............6-14
O
Odometer......................................................3-31
Odometer, Trip...............................................3-31
Off-Road Driving.............................................4-16
Off-Road Lamps.............................................3-17
Off-Road Recovery..........................................4-13
Oil
Engine.......................................................5-14
Pressure Gage............................................3-41
Oil, Engine Oil Life System..............................5-17
Older Children, Restraints................................1-32
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-48
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-28
8

Outside
Automatic Dimming Mirror with Curb View
Assist.....................................................2-47
Convex Mirror.............................................2-46
Heated Mirrors............................................2-47
Power Mirrors.............................................2-45
Overheated Engine Protection Operating Mode . . . 5-28
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Park Aid........................................................3-18
Park (P)
Shifting Into................................................2-35
Shifting Out of............................................2-36
Parking
Brake........................................................2-34
Over Things That Burn.................................2-37
Passing.........................................................4-13
Passlock
®......................................................2-23
Power
Accessory Outlet(s)......................................3-21
Door Locks.................................................. 2-9
Electrical System.......................................5-115
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-25Power (cont.)
Seat............................................................ 1-2
Steering Fluid.............................................5-33
Windows....................................................2-18
Power Winch Platform.....................................4-54
Programmable Automatic Door Locks.................2-10
Q
Questions and Answers About Safety Belts.........1-18
R
Radios..........................................................3-61
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
Navigation/Radio System, see Navigation
Manual...................................................3-88
Radio with Cassette and CD.........................3-63
Radio with Six-Disc CD................................3-76
Rear Seat Audio........................................3-108
Setting the Time..........................................3-62
Theft-Deterrent..........................................3-109
Understanding Reception............................3-111
Reading Lamps..............................................3-18
9