tow HUMMER H2 2008 Owners Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-16
Child Restraints
.......................................1-36
Airbag System
.........................................1-64
Restraint System Check
............................1-76
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-19
Theft-Deterrent Systems
............................2-24
Starting and Operating Your Vehicle
...........2-28
Mirrors
....................................................2-45
Object Detection Systems
..........................2-50
OnStar
®System
......................................2-53
Universal Home Remote System
................2-57
Storage Areas
.........................................2-64
Sunroof
..................................................2-67
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-31
Driver Information Center (DIC)
..................3-49
Audio System(s)
.......................................3-72Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-51
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
................. 5-9
Rear Axle
...............................................5-45
Four-Wheel Drive
.....................................5-46
Front Axle
...............................................5-47
Bulb Replacement
....................................5-48
Windshield Wiper Blade Replacement
.........5-54
Tires
......................................................5-55
Appearance Care
...................................5-100
Vehicle Identication
...............................5-109
Electrical System
....................................5-110
Capacities and Specications
...................5-117
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Vehicle Data Recording and Privacy
...........7-16
Index................................................................ 1
2008 HUMMER H2 Owner ManualM

To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
Easy Exit Seat
To store the seat exit position:
1. Press and release the button 1. The seat will move
to the stored memory position.
2. Adjust the seat to the desired exit position.
3. Press and hold the exit button until a double chime
sounds to let you know that the position has been
stored.
A second seat exit position can be programmed by
repeating the above steps and pressing button 2.
B(Easy Exit Seat):To use the seat exit position:
Press the exit button on the memory control.
If this feature is activated in the DIC, removing the
key from the ignition will move the seat to the exit
position.
See “Easy Exit Seat” underDIC Vehicle Customization
(With DIC Buttons) on page 3-63for more information
on activating this feature in the DIC.
Power Reclining Seatbacks
The front seats have power reclining seatbacks.
The control used to operate the seatbacks are located
on the outboard side of the seats.
To recline the seatback, press the control toward
the rear of the vehicle.
To raise the seatback, press the control toward the
front of the vehicle.
1-5

Folding the Seatbacks
The seatbacks are equipped with rearward folding head
rests (SUV only). When the seatback is being folded
down, the head rest will automatically fold rearward.
To fold the rear seat, do the following:
1. Make sure that nothing is under or in front of the seat.
2. Pull up on the strap
loop located at the rear
of the seat cushion
and pull the seat
cushion up and
fold it forward.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.3. Pull the seatback forward and fold it down until it
is at.
If the seatback cannot fold at because it interferes
with the cushion, try moving the front seat forward
and/or bringing the front seatback more upright.
4. Repeat the steps for the other half of the split
bench seat.
{CAUTION:
Using the third row seating position while the
second row is folded, or folded and tumbled,
could cause injury in a sudden stop or crash.
Be sure to return the seat to the passenger
seating position. Push and pull on the seat to
make sure it is locked into place.
1-9

Folding the Seatback
To fold the seatback, do the following:
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
1. Pull up on the release
lever labeled 1, located
on the rear of the
seatback, and push the
seatback forward.
Unfolding the Seatback
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
To return the seatback to the passenger position, do the
following:
1. Pull up on the release
lever labeled 1 and
then pull up on
the seatback until the
seatback locks into
the upright position.
2. Push forward on the seatback to make sure it is
locked into position.
1-11

To return the seatback to an upright position, do the
following:
1. Pull the lever labeled 3 toward you.
2. While still holding lever 3 toward you, grasp the top
of the seat and pull it toward you slightly.
3. Let go of lever 3 and pull the seat completely down.4. Push down on the seat rmly. Try pulling it up to be
sure it is locked into place.
5. Pull up on the release
lever labeled 1 and
then pull up on
the seatback until the
seatback locks into
the upright position.
1-13

Removing the Seat
To remove the seat, do the following:
1. Open the liftgate.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
2. Fold the seatback
forward onto the seat
cushion by using
the lever labeled 1.
The seat cannot be
removed unless
the seatback is folded.3. To unlatch the rear of
the seat from the oor,
pull up on the release
lever labeled 2, at
the rear of the seat,
and lift the rear of
the seat up from
the oor.
4. Squeeze the release handle while pulling the seat
out of the slots on the oor.
5. While holding the rear of the seat up, roll the seat
out of the vehicle.
1-14

{CAUTION:
Children can be seriously injured or strangled
if a shoulder belt is wrapped around their neck
and the safety belt continues to tighten.
Secure any unused safety belts behind the
child restraint so children cannot reach them.
Pull the shoulder belt all the way out of the
retractor to set the lock, if your vehicle has
one, after the child restraint has been installed.
Be sure to follow the instructions of the child
restraint manufacturer.Notice:Contact between the child restraint LATCH
attachment parts and the vehicle’s safety belt
assembly may cause damage to these parts.
Make sure when securing unused safety belts
behind the child restraint that there is no contact
between the child restraint LATCH attachment parts
and the vehicle’s safety belt assembly.
Folding an empty rear seat with the safety belts
secured may cause damage to the safety belt or the
seat. When removing the child restraint, always
remember to return the safety belts to their normal,
stowed position before folding the rear seat.
1-53

What Makes an Airbag Inate?
In a deployment event, the sensing system sends an
electrical signal triggering a release of gas from the
inator. Gas from the inator lls the airbag causing the
bag to break out of the cover and deploy. The inator,
the airbag, and related hardware are all part of the
airbag module.
Frontal airbag modules are located inside the steering
wheel and instrument panel. For vehicles with roof-rail
airbags, there are airbag modules in the ceiling of the
vehicle, near the side windows that have occupant
seating positions.
How Does an Airbag Restrain?
In moderate to severe frontal or near frontal collisions,
even belted occupants can contact the steering wheel
or the instrument panel. In moderate to severe side
collisions, even belted occupants can contact the inside
of the vehicle.
Airbags supplement the protection provided by safety
belts. Frontal airbags distribute the force of the
impact more evenly over the occupant’s upper body,
stopping the occupant more gradually. Roof-rail airbags
distribute the force of the impact more evenly over
the occupant’s upper body.Rollover capable roof-rail airbags are designed to help
contain the head and chest of occupants in the
outboard seating positions in the rst, second, and third
rows, if equipped with a third row seat. The rollover
capable roof-rail airbags are designed to help reduce the
risk of full or partial ejection in rollover events, although
no system can prevent all such ejections.
But airbags would not help in many types of collisions,
primarily because the occupant’s motion is not
toward those airbags. SeeWhen Should an Airbag
Inflate? on page 1-69for more information.
Airbags should never be regarded as anything more
than a supplement to safety belts.What Will You See After an Airbag
Inates?
After the frontal airbags inate, they quickly deate, so
quickly that some people may not even realize an
airbag inated. Roof-rail airbags may still be at least
partially inated for some time after they deploy.
Some components of the airbag module may be hot for
several minutes. For location of the airbag modules,
seeWhat Makes an Airbag Inflate? on page 1-70.
1-70

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Remote Vehicle Start......................................2-8
Doors and Locks............................................2-10
Door Locks..................................................2-10
Power Door Locks........................................2-11
Delayed Locking...........................................2-11
Programmable Automatic Door Locks..............2-11
Rear Door Security Locks..............................2-12
Lockout Protection........................................2-12
Liftgate (SUV)..............................................2-13
Midgate
®(SUT)............................................2-14
Tailgate/Spare Tire Carrier.............................2-16
Windows........................................................2-19
Power Windows............................................2-20
Sun Visors...................................................2-23
Theft-Deterrent Systems..................................2-24
Content Theft-Deterrent.................................2-24
PASS-Key
®III+............................................2-26
PASS-Key®III+ Operation..............................2-26Starting and Operating Your Vehicle................2-28
New Vehicle Break-In....................................2-28
Ignition Positions..........................................2-28
Retained Accessory Power (RAP)...................2-29
Starting the Engine.......................................2-30
Engine Coolant Heater..................................2-31
Automatic Transmission Operation...................2-32
Tow/Haul Mode............................................2-36
Full-Time Four-Wheel Drive............................2-36
Parking Brake..............................................2-40
Shifting Into PARK (P)...................................2-41
Shifting Out of PARK (P)...............................2-42
Parking Over Things That Burn.......................2-43
Engine Exhaust............................................2-43
Running the Engine While Parked...................2-44
Mirrors...........................................................2-45
Automatic Dimming Rearview Mirror with
Compass and Temperature Display..............2-45
Outside Power Foldaway Mirrors.....................2-48
Outside Automatic Dimming Mirror..................2-49
Outside Convex Mirror...................................2-49
Outside Heated Mirrors..................................2-49
Section 2 Features and Controls
2-1

3. Swing the spare tire carrier to the side.
Opening the Tailgate
Lift the release handle while pulling the tailgate
toward you. SUT Model Spare Tire Carrier shown,
SUV Model similar
2-17