climate control HUMMER H2 2005 User Guide

When the weather is cool or damp, operating the system
in recirculation for extended periods of time may cause
fogging of the vehicle’s windows. To clear the fog, select
either defog or front defrost.
You may also notice that the A/C compressor will run
while in recirculation mode. This is normal and helps to
prevent fogging.
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.
Display
If you press the MODE button to select an air delivery
mode, the display will change to show you the selected
air delivery mode. After ten seconds, the display will
change to show the driver temperature setting and the
selected mode.If you press the up or down arrows on the fan switch,
the display will change to show the selected fan speed.
After ten seconds, the display will change to show
the driver temperature setting and the selected mode.
Whenever you press AUTO, the display will change
to show the following:
the current driver’s set temperature and an arrow
for ve seconds,
the current passenger’s set temperature setting and
an arrow for ve seconds and
the automatic air delivery mode and fan speed.
If the driver’s and passenger’s temperature settings are
the same when AUTO is pressed, the temperature
setting and both arrows will be displayed for ve
seconds along with the automatic air delivery mode and
fan speed. After the ve second update, the display
will change to show the temperature setting, both arrows
and AUTO.
3-22

Outlet Adjustment
Your vehicle has air outlets that allow you to adjust the
direction and amount of airow inside the vehicle. Push
the knob in the center of the outlet up, down, left or right
to move the outlet in the direction you would like. Turn the
knob in the center of the outlet so the louvers open or
close to increase or decrease airow.
Operation Tips

Keep the hood and front air inlets free of ice, snow,
or any other obstruction (such as leaves). The
heater and defroster will work far better, reducing
the chance of fogging the inside of your windows.
Keep the air path under the front seats clear
of objects. This helps air to circulate throughout your
vehicle.
Adding outside equipment to the front of your
vehicle, such as hood-air deectors, etc., may affect
the performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
Climate Controls Personalization
If your vehicle is equipped with the electronic climate
control system, you can store and recall the climate
control settings for temperature, air delivery mode and
fan speed for two different drivers. The personal
choice settings recalled are determined by the
transmitter used to enter the vehicle.
After the button with the unlock symbol on a remote
keyless entry transmitter is pressed, the climate control
will adjust to the last settings of the identied driver.
The settings can also be changed by pressing one of the
memory buttons (1 or 2) located on the driver’s door.
When adjustments are made, the new settings are
automatically saved for that driver.
3-25

Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
Temperature – A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation
of heat and its ability to dissipate heat when testedunder controlled conditions on a specied indoor
laboratory test wheel. Sustained high temperature can
cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a
level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inated and not
overloaded. Excessive speed, underination, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
If you notice unusual tire wear or your vehicle pulling
one way or the other, the alignment may need to
be reset. If you notice your vehicle vibrating when
driving on a smooth road, your wheels may need to
be rebalanced.
5-65

Fuses Usage
RR Wiper Rear Window Wiper Switch
SEO ACCYSpecial Equipment
Option Accessory
WS WPR Windshield Wipers
Fuses Usage
TBC ACCYTruck Body Controller
Accessory
IGN 3 Rear Heated Seats Module
4WDFour-Wheel Drive Switch, Air
Suspension Switch/Module
HTR A/C Not Used
LOCKPower Door Lock Relay
(Lock Function)
HVAC 1Inside Rearview Mirror,
Climate Control System
L DOORDriver’s Door Harness
Connection
CRUISE Cruise Control
UNLOCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Not Used
BRAKE Brake Switch
5-104

Fuses Usage
GLOW PLUG Not Used
CUST FEED Gasoline Accessory Power
HYBRID Hybrid
STUD #1Accessory Power/Trailer
Wiring
MBEC 1Mid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBEC 2Left Bussed Electrical
Center, Door Modules, Door
Locks, Auxiliary Power
Outlet—Rear Cargo Area
and Instrument Panel
STUD #2Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-Lock Brakes
VSES/ECASElectronically Controlled Air
Suspension
IGN A Ignition Switch
IGN B Ignition SwitchFuses Usage
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STRTR Starter Relay
INTPARK Roof Marker Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
S/ROOF Sunroof
SEO B2 Off-Road Lamps
4WS Vent Solenoid Canister
RR HVAC Not Used
5-109

Fuses Usage
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECASClimate Control
Controller/Electronically
Controlled Air Suspension
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMPAir Conditioning
Compressor Relay
A/C COMP Air Conditioning Compressor
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical
Center, HomeLink, Rear
Heated Seats
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock SystemFuses Usage
CRNK Starting System
LO HDLP-RT Headlamp Low Beam-Right
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 All-Wheel Drive Module
SBA Not Used
5-111

Check
Engine Light...............................................3-37
Checking Things Under the Hood....................... 5-9
Chemical Paint Spotting...................................5-99
Child Restraints
Child Restraint Systems...............................1-42
Infants and Young Children...........................1-39
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-49
Older Children.............................................1-36
Securing a Child Restraint Designed for the
LATCH System........................................1-51
Securing a Child Restraint in a Rear Seat
Position..................................................1-52
Securing a Child Restraint in the Right Front
Seat Position...........................................1-54
Top Strap...................................................1-46
Top Strap Anchor Location............................1-47
Where to Put the Restraint...........................1-45
Chime Level Adjustment..................................3-92
Cigarette Lighter.............................................3-18
Cleaning
Aluminum Wheels........................................5-98
Exterior Lamps/Lenses.................................5-97
Fabric/Carpet..............................................5-92
Finish Care.................................................5-97
Glass Surfaces............................................5-95
Instrument Panel.........................................5-94
Interior Plastic Components...........................5-94
Leather......................................................5-94Cleaning (cont.)
Speaker Covers..........................................5-95
Tires..........................................................5-99
Underbody Maintenance...............................5-99
Vinyl..........................................................5-94
Washing Your Vehicle...................................5-96
Weatherstrips..............................................5-95
Windshield, Backglass, and Wiper Blades.......5-98
Wood Panels..............................................5-95
Climate Control System
Climate Controls Personalization....................3-25
Dual Automatic............................................3-19
Outlet Adjustment........................................3-25
Comfort Guides, Rear Safety Belt.....................1-33
Content Theft-Deterrent....................................2-22
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-35
Heater, Engine............................................2-27
Surge Tank Pressure Cap.............................5-26
Cooling System..............................................5-29
Cruise Control Lever.......................................3-10
Cruise Control Light........................................3-41
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
3

Customer Assistance Information (cont.)
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United
States Government...................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-9
Doing Your Own Service Work........................... 5-4
Dome Lamps.................................................3-17
Door
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Driver
Position, Safety Belt.....................................1-22
Driver Information Center (DIC).........................3-43
DIC Operation and Displays..........................3-44
DIC Vehicle Personalization..........................3-54Driver Information Center (DIC) (cont.)
DIC Warnings and Messages........................3-47
Driving
At Night.....................................................4-39
City...........................................................4-43
Defensive..................................................... 4-2
Drunken....................................................... 4-2
First Aid and Tool Kit...................................4-55
Freeway.....................................................4-44
Front Mounted Receiver...............................4-56
Hill and Mountain Roads..............................4-46
In Rain and on Wet Roads...........................4-40
Off-Road....................................................4-16
Power Winch Platform..................................4-57
Recovery Loops..........................................4-53
Rocking Your Vehicle to Get it Out.................4-53
Winter........................................................4-48
Dual Automatic Climate Control System.............3-19
E
Electrical System
Add-On Equipment.....................................5-102
Center Instrument Panel Fuse Block.............5-106
Fuses and Circuit Breakers.........................5-103
Instrument Panel Fuse Block.......................5-103
Power Windows and Other Power Options....5-102
Underhood Fuse Block...............................5-107
Windshield Wiper Fuses.............................5-102
4

Outside (cont.)
Heated Mirrors............................................2-47
Power Mirrors.............................................2-46
Overheated Engine Protection Operating Mode.....5-28
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-37
Shifting Out of............................................2-38
Parking
Brake........................................................2-36
Over Things That Burn.................................2-38
Passing.........................................................4-13
Passlock
®......................................................2-24
Personalization, Climate Controls......................3-25
Power
Accessory Outlets........................................3-18
Door Locks.................................................. 2-9
Electrical System.......................................5-102
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-26
Seat............................................................ 1-2
Steering Fluid.............................................5-33
Windows....................................................2-19
Power Winch Platform.....................................4-57Programmable Automatic Door Locks.................2-10
Programming the HomeLink
®Transmitter...........2-51
Q
Questions and Answers About Safety Belts.........1-21
R
Radios..........................................................3-60
Care of Your Cassette Tape Player................3-91
Care of Your CD Player...............................3-92
Care of Your CDs........................................3-92
Navigation/Radio System..............................3-87
Radio with Cassette and CD.........................3-61
Radio with Six-Disc CD................................3-74
Rear Seat Audio..........................................3-87
Setting the Time..........................................3-61
Theft-Deterrent............................................3-89
Understanding Reception..............................3-90
Reading Lamps..............................................3-17
Rear Axle......................................................5-44
Locking......................................................4-10
Rear Door Security Locks................................2-12
Rear Heated Seats........................................... 1-7
Rear Safety Belt Comfort Guides......................1-33
Rear Seat Armrest..........................................2-59
9