display HUMMER H2 2006 Owners Manual

If No Steam Is Coming From
Your Engine
The ENGINE COOLANT HOT message, along with a
low coolant condition, can indicate a serious problem.
If you get an engine overheat warning, but see or
hear no steam, the problem may not be too serious.
Sometimes the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer. SeeTowing a Trailer on page 4-63.
If you get the ENGINE COOLANT HOT message with
no sign of steam, try this for a minute or so:
1. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
2. If you are in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving — DRIVE (D).
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues and you have not stopped, pull
over, stop, and park your vehicle right away.If there is still no sign of steam, push down the
accelerator until the engine speed is about twice as fast
as normal idle speed for at least three minutes while
you are parked. If you still have the warning, turn off the
engine and get everyone out of the vehicle until it
cools down. Also, see “Overheated Engine Protection
Operating Mode” later in this section.
You may decide not to lift the hood but to get service
help right away.
Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is displayed, an
overheat protection mode which alternates ring
groups of cylinders helps prevent engine damage. In
this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle to
be driven to a safe place in an emergency. Driving
extended miles (km) and/or towing a trailer in the
overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair the
cause of coolant loss, change the oil and reset the oil
life system. SeeEngine Oil on page 5-14.
5-28

Windshield Washer Fluid
What to Use
When you need windshield washer uid, be sure to read
the manufacturer’s instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a uid that has
sufficient protection against freezing.
Adding Washer Fluid
Your vehicle has a message that comes on when the
washer uid is low. The message is displayed for
15 seconds at the start of each ignition cycle if the uid
is low. When the CHECK WASHER FLUID message
is displayed, you will need to add washer uid to
the windshield washer uid reservoir. SeeDIC Warnings
and Messages on page 3-48for more information.
Open the cap with the
washer symbol on it. Add
washer uid until the
tank is full. SeeEngine
Compartment Overview on
page 5-12for reservoir
location.Notice:
When using concentrated washer uid, follow the
manufacturer’s instructions for adding water.
Do not mix water with ready-to-use washer uid.
Water can cause the solution to freeze and
damage your washer uid tank and other parts of
the washer system. Also, water does not clean as
well as washer uid.
Fill your washer uid tank only three-quarters full
when it is very cold. This allows for expansion if
freezing occurs, which could damage the tank if
it is completely full.
Do not use engine coolant (antifreeze) in your
windshield washer. It can damage your washer
system and paint.
5-34

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
®
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-14.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-24.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherGM Optikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front and Rear
AxleSAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 12378261, in
Canada 10953455) meeting
GM Specication 9986115.
6-12

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

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

Rear Axle......................................................5-43
Locking......................................................4-10
Rear Door Security Locks................................2-10
Rear Heated Seats........................................... 1-6
Rear Safety Belt Comfort Guides......................1-29
Rear Seat Armrest..........................................2-58
Rear Seat Audio (RSA)..................................3-108
Rear Seat Entertainment System.......................3-88
Rear Seat Passengers, Safety Belts..................1-27
Rear Vision Camera........................................3-18
Rear Windshield Washer/Wiper.........................3-10
Rearview Mirror, Automatic Dimming with
Compass....................................................2-43
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-39
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display . . . 2-41
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-12
Recovery Loops..............................................4-51
Recreational Vehicle Towing.............................4-60
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Spare Tire and Tools...........5-71, 5-78
Replacement Bulbs.........................................5-51Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-69
Replacing Restraint System Parts After a
Crash.....................................................1-70
Retained Accessory Power (RAP)......................2-25
Ride Height, Selectable Extended Rear Ride......4-61
Right Front Passenger Position, Safety Belts......1-27
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-50
Routing, Engine Drive Belt...............................6-15
Running the Engine While Parked.....................2-38
S
Safety Belt
Reminder Light............................................3-31
Safety Belts
Care of....................................................5-108
Driver Position............................................1-19
How to Wear Safety Belts Properly................1-19
Questions and Answers About Safety Belts.....1-18
10