climate control HUMMER H2 2005 Owners Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................1-16
Child Restraints
.......................................1-36
Airbag System
.........................................1-58
Restraint System Check
............................1-69
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-18
Theft-Deterrent Systems
............................2-22
Starting and Operating Your Vehicle
...........2-25
Mirrors
....................................................2-41
OnStar
®System
......................................2-48
HomeLink®Transmitter
.............................2-50
Storage Areas
.........................................2-54
Sunroof
..................................................2-62
Vehicle Personalization
.............................2-63
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-19
Warning Lights, Gages, and Indicators
........3-26
Driver Information Center (DIC)
..................3-43Audio System(s)
.......................................3-60
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-64
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
................. 5-9
All-Wheel Drive
........................................5-43
Rear Axle
...............................................5-44
Front Axle
...............................................5-44
Bulb Replacement
....................................5-45
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-54
Appearance Care
.....................................5-92
Vehicle Identication
...............................5-101
Electrical System
....................................5-102
Capacities and Specications
...................5-112
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2005 HUMMER H2 Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell what to do to help avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors or in
different words.
There are also warning labels on the vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along with
the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic name of a
component, gage, or indicator, reference the following
topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

Lockout Protection
This feature protects you from locking your key in the
vehicle when the key is in the ignition and a door
is open.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all of the doors will lock
and then the driver’s door will unlock.
Liftgate (SUV)
{CAUTION:
It can be dangerous to drive with the liftgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the liftgate
open or if electrical wiring or other cable
CAUTION: (Continued)
CAUTION: (Continued)
connections must pass through the seal
between the body and the liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. SeeDual Automatic
Climate Control System on page 3-19.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-39.
To unlock the liftgate, press the unlock button on any of
the power door lock switches or the remote keyless
entry transmitter.
Open the liftgate by pulling the handle located in the
center of the door.
To lock the liftgate, press the lock button on any of the
power door lock switches or the remote keyless
entry transmitter.
2-13

Midgate (SUT)
{CAUTION:
It can be dangerous to drive with the cargo
area covered and the tailgate and the midgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the cargo
covers on and the tailgate and midgate open
or if electrical wiring or other cable
connections must pass through the seal
between the body and the midgate:
Make sure all windows are shut.
Turn the fan on your heating or cooling
system to its highest speed on the setting
that brings in outside air. This will force
outside air into your vehicle. SeeDual
Automatic Climate Control System on
page 3-19.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-39.The midgate allows you to extend the length of your
vehicle’s cargo area into the cab.
Lowering the Midgate
The midgate window must be completely lowered for
the midgate to be lowered. See ”Midgate Window” under
Power Windows on page 2-19.
Both the midgate and the midgate window can be
lowered while the ignition is in either RUN or
ACCESSORY, or while in Retained Accessory Power
(RAP) mode. SeeRetained Accessory Power (RAP) on
page 2-26for more information.
To lower the midgate, do the following:
1. Fold the rear seats forward. See60/40 Split Bench
Seat on page 1-7. The front seats may have to be
moved forward slightly.
2.
K: Press the bottom part of this switch to
lower the midgate window. SeeInstrument
Panel Overview on page 3-4for the location of this
switch. The window can also be operated using
the global express-down button. See “Global Glass
Feature” underPower Windows on page 2-19.
2-14

Running Your Engine While You
Are Parked
It is better not to park with the engine running. But if
you ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust into
your vehicle. See the earlier caution under
Engine Exhaust on page 2-39.
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the climate control fan is at the highest setting.
One place this can happen is a garage.
Exhaust — with CO — can come in easily.
NEVER park in a garage with the engine
running.
Another closed-in place can be a blizzard. See
Winter Driving on page 4-48.
{CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can roll.
Do not leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle will not move, even when you are on
fairly level ground, always set your parking
brake and move the shift lever to PARK (P).
2-40

Outside Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
The passenger’s side mirror is convex. A convex
mirror’s surface is curved so more can be seen from the
driver’s seat. It makes things in the mirror appear
farther away than they really are.
Outside Heated Mirrors
If the vehicle has heated
mirrors, the button to turn
this function on or off
is located on the climate
control panel.
Press this button to warm the driver’s and passenger’s
outside rearview mirrors to help clear them of ice,
snow, and condensation.
If the vehicle has a rear window defogger, the heated
mirrors will come on when this button is pressed.
See “Rear Window Defogger” underDual Automatic
Climate Control System on page 3-19for more
information.
2-47

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Windshield Washer.........................................3-9
Cruise Control..............................................3-10
Exterior Lamps.............................................3-13
Headlamps on Reminder................................3-14
Daytime Running Lamps................................3-14
Automatic Headlamp System..........................3-15
Off-Road Lamps...........................................3-16
Instrument Panel Brightness...........................3-16
Dome Lamps...............................................3-17
Entry/Exit Lighting.........................................3-17
Reading Lamps............................................3-17
Battery Run-Down Protection..........................3-17
Accessory Power Outlets...............................3-18
Ashtrays and Cigarette Lighter.........................3-18Climate Controls............................................3-19
Dual Automatic Climate Control System...........3-19
Outlet Adjustment.........................................3-25
Climate Controls Personalization.....................3-25
Warning Lights, Gages, and Indicators............3-26
Instrument Panel Cluster................................3-27
Speedometer and Odometer...........................3-28
Tachometer.................................................3-28
Safety Belt Reminder Light.............................3-28
Airbag Readiness Light..................................3-29
Airbag Off Light............................................3-30
Charging System Light..................................3-31
Voltmeter Gage............................................3-32
Brake System Warning Light..........................3-32
Anti-Lock Brake System Warning Light.............3-34
Traction Off Light..........................................3-34
Engine Coolant Temperature Gage..................3-35
Transmission Temperature Gage.....................3-35
Malfunction Indicator Lamp.............................3-37
Oil Pressure Gage........................................3-40
Security Light...............................................3-41
Cruise Control Light......................................3-41
Highbeam On Light.......................................3-41
Tow/Haul Mode Light....................................3-42
Section 3 Instrument Panel
3-1

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-25.
B. Exterior Lamps Control. SeeExterior Lamps
on page 3-13.
C. OnStar
®and Radio Steering Wheel Buttons (If
Equipped). SeeOnStar®System on page 2-48and
Audio Steering Wheel Controls on page 3-89.
D. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-27.
E. Locking Rear Axle and All-wheel Drive Buttons. See
Locking Rear Axle on page 4-10andAll-Wheel
Drive on page 2-32.
F. Audio System. SeeAudio System(s) on page 3-60.
G. Airbag Switch. SeeAirbag Off Switch on page 1-65.
H. Glove Box. SeeGlove Box on page 2-54.
I. Midgate Glass Up/Down Switch (SUT). SeeMidgate
(SUT) on page 2-14. Rear Wiper/Washer Switch
(SUV). SeeWindshield Washer on page 3-9.
J. Dome Override Button. SeeDome Lamps on
page 3-17.
K. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
L. Tilt Lever. SeeTilt Wheel on page 3-6.
M. Driver Information Center (DIC) Buttons. SeeDriver
Information Center (DIC) on page 3-43.N. Parking Brake Release. SeeParking Brake on
page 2-36.
O. Traction Control Button. SeeTraction Control
System (TCS) on page 4-9.
P. Tow/Haul Selector Button. SeeTow/Haul Mode Light
on page 3-42.
Q. Ride Height Selector Button (If Equipped). See
Selectable Extended Rear Ride Height on page 4-65.
R. Cigarette Lighter or Accessory Power Outlet (If
Equipped). SeeAshtrays and Cigarette Lighter on
page 3-18 Accessory Power Outlets on page 3-18.
S. Shift Lever. SeeAutomatic Transmission Operation
on page 2-28.
T. Accessory Power Outlets. SeeAccessory Power
Outlets on page 3-18.
U. OnStar Buttons. SeeOnStar
®System on page 2-48.
V. Rear Window Defogger Button. See “Rear Window
Defogger” underDual Automatic Climate Control
System on page 3-19.
W. Comfort Control System. SeeDual Automatic
Climate Control System on page 3-19.
3-5

Climate Controls
Dual Automatic Climate Control
System
With this system, you can control the heating, cooling
and ventilation in your vehicle.
You can select different climate control settings for the
driver and passengers.
Driver’s Side Temperature Knob
The driver’s side knob is used to adjust the temperature
of the air coming through the system on the driver’s
side. The temperature can be adjusted even if the
system is turned off. This is possible since outside airwill always ow through the system as the vehicle is
moving forward unless it is set to recirculation mode.
See “Recirculation” later in this section.
Turn the knob counterclockwise or clockwise to lower or
increase the cabin temperature. The display will show
the temperature setting decreasing or increasing and an
arrow pointing to the driver will be displayed under
and to the left of the temperature setting.
Passenger’s Side Temperature Knob
The passenger’s side knob can be used to change the
temperature of the air coming through the system on the
passenger’s side of the vehicle. The temperature can be
adjusted even if the system is turned off. This is possible
since outside air will always ow through the system as
the vehicle is moving forward unless it is set to
recirculation mode. See “Recirculation” later in this
section.
Turn the knob counterclockwise or clockwise to lower or
increase the cabin temperature. The display will show
the temperature setting decreasing or increasing and an
arrow pointing to the passenger will be displayed
under and to the right of the temperature setting.
The passenger’s temperature setting can be set to
match the driver’s temperature setting by pressing and
holding the AUTO button for four seconds. Both the
driver and passenger arrows will be displayed.
3-19

9(Off):Press this button to turn off the entire climate
control system. Outside air will still enter the vehicle, and
will be directed to the oor. This direction can be changed
by pressing the mode button. The temperature can also
be adjusted using either temperature knob. Press the up
or down arrows on the fan switch, the defrost button, the
AUTO button, or the air conditioning button to turn the
system on when it is off.
Manual Operation
You may manually adjust the air delivery mode or fan
speed.
w9x(Fan):The switch with the fan symbol allows
you to manually adjust the fan speed. Press the up
arrow to increase fan speed and the down arrow
to decrease fan speed.
Pressing this button when the system is off will turn the
system on.
C(Mode):Press this button to manually change the
direction of the airow in your vehicle; keep pressing the
button until the desired mode appears on the display.
If you press the mode button to select an air delivery
mode, the display will change to show you the selected
air mode delivery. The display will then show the
current status of the system. When the system is turned
off, the display will go blank after displaying the
current status of the system.
H(Panel):This setting will deliver air to the
instrument panel outlets.
)(Bi-Level):This setting will deliver warmer air to the
oor and cooler air to the instrument panel outlets.
6(Floor):This setting will deliver air to the oor
outlets.
-(Defog):See “Defogging and Defrosting” later in
this section.
@(Recirculation):Press this button to limit the
amount of outside air entering your vehicle. The light on
the recirculation button will glow. This is helpful when you
are trying to limit odors entering your vehicle and for
maximum air conditioning performance in hot weather.
Press this button again to allow outside air to enter the
vehicle. The light on the recirculation button will go off.
Pressing this button also cancels the auto recirculation
feature. To resume the auto recirculation function, press
the AUTO button. Each time the vehicle is started, the
system will revert to the auto recirculation function.
If you select recirculation while in defrost, defog or oor,
the light in the button will ash and then go out to let you
know that this is not allowed. This is normal and helps to
prevent fogging.
3-21