4WD HUMMER H2 2004 Owners Manual

I(4LO Lock):This mode delivers extra torque to all
four wheels and is used for extreme off-road conditions.
You might choose 4LO Lock if you are driving off-road,
deep sand, mud, or snow and climbing or descending
steep hills.
When in this mode you can also choose to lock the rear
axle for additional traction in extreme off-road situations.
SeeLocking Rear Axle on page 4-11.
Notice:Operating your vehicle in 4LO Lock above
50 mph (80 km/h) for any extended period of time
could cause damage to the transfer case. Do
not operate your vehicle in 4LO Lock above 50 mph
(80 km/h) for extended periods.
{CAUTION:
Shifting the transfer case to NEUTRAL can
cause your vehicle to roll even if the
transmission is in PARK (P). You or someone
else could be seriously injured. Be sure to set
the parking brake before placing the transfer
case in NEUTRAL. SeeParking Brake on
page 2-29.N (NEUTRAL):Shift the vehicle’s transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 4-65orTowing
Your Vehicle on page 4-65for more information.
Indicator lights in the buttons show which mode you are
in. The indicator lights will come on briey when you
turn on the ignition and one will stay on. If the lights do
not come on, you should take your vehicle to your
dealer for service. An indicator light will ash while
shifting the transfer case. It will remain illuminated when
the shift is complete. If for some reason the transfer
case cannot make a requested shift, it will return to the
last chosen setting.
If the SERVICE 4WD message stays on, you should
take your vehicle to your dealer for service. See “Service
4WD message” underDriver Information Center (DIC)
on page 3-44.
2-26

SERVICE AIR BAG
If there is a problem with the air bag system, this
message will be displayed on the DIC. Have a qualied
technician inspect the system for problems. Pressing
the select button will clear it from the DIC display.
SERVICE BRAKE SYSTEM
If a problem occurs with the brake system, this message
will appear on the DIC. If this message appears, stop
as soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
Pressing the select button will clear it from the
DIC display.
SERVICE 4WD
If a problem occurs with the all–wheel drive system, this
message will appear on the DIC. If this message
appears, stop as soon as possible and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you begin driving, the four wheel
drive system needs service. Pressing the select button
will clear it from the DIC display.
SERVICE AIR SUSPENSION
If a problem occurs with the suspension system, this
message will appear on the DIC. If this message
appears, stop as soon as possible and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you begin driving, the air
suspension system needs service.
TURN SIGNAL ON
If a turn signal is left on for 3/4 of a mile (1.2 km), this
message will appear on the display and you will hear a
chime. Move the turn signal/multifunction lever to the
off position. Pressing the select button will clear it from
the DIC display.
FUEL LEVEL LOW
If the fuel level is low, this message will appear on the
DIC and you will hear a chime. Refuel as soon as
possible. Pressing the select button will acknowledge
this message immediately and clear it from the DIC
display. It will also clear itself after 10 seconds. The low
fuel light near the fuel gage will still remain on in
either case.
3-58

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
5-103

Seats (cont.)
Memory.....................................................2-51
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-2
Rear Seat Operation...................................... 1-7
Reclining Seatbacks...................................... 1-5
Third Row Seat...........................................1-10
Securing a Child Restraint
Designed for the LATCH System...................1-52
Rear Seat Position......................................1-53
Right Front Seat Position..............................1-55
Security Light.................................................3-42
Security While You Travel.................................. 7-5
Select Button.................................................3-55
Selectable Extended Rear Ride Height...............4-73
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-38
Publications Ordering Information...................7-11
SERVICE 4WD...............................................3-58
SERVICE AIR BAG.........................................3-58
SERVICE AIR SUSPENSION...........................3-58
SERVICE BRAKE SYSTEM.............................3-58
Service Bulletins.............................................7-11
Service Manuals.............................................7-11
Servicing Your Air Bag-Equipped Vehicle............1-72
Setting Preset PTYs........................................3-79Setting Preset PTYs (RDS Only).......................3-67
Setting Preset Stations............................3-64, 3-76
Setting the Time.............................................3-62
Setting the Tone (Bass/Treble)..................3-65, 3-76
Sheet Metal Damage.......................................5-98
Shifting Into Park (P).......................................2-30
Shifting Out of Park (P)...................................2-32
Skidding........................................................4-16
Some Other Rainy Weather Tips.......................4-45
Spare Tire.....................................................5-92
Specications, Capacities...............................5-111
Speedometer..................................................3-28
Split Bench Seat (60/40).................................... 1-8
Stalling on an Incline.......................................4-38
Starting Your Engine.......................................2-20
Steering........................................................4-12
Steering in Emergencies..................................4-13
Steering Tips..................................................4-12
Steering Wheel Controls, Audio.........................3-89
Steering Wheel, Tilt Wheel................................. 3-5
Storage Areas
Center Console Storage Area........................2-46
Center Overhead Console.............................2-46
Glove Box..................................................2-45
Luggage Carrier..........................................2-46
Rear Seat Armrest.......................................2-49
Storing a Flat or Spare Tire and Tools...............5-90
Stuck in Sand, Mud, Ice or Snow......................4-56
Sun Visors.....................................................2-16
13