2008 HUMMER H2 Owners Manual

Replacing Restraint System Parts
After a Crash
{CAUTION:
A crash can damage the restraint systems
in your vehicle. A damaged restraint system
may not properly protect the person using it,
resulting in serious injury or even death in a
crash. To help make sure your restraint
systems are working properly after a crash,
have them inspected and any necessary
replacements made as soon as possible.If you have had a crash, do you need new belts or
LATCH system (if equipped) parts?
After a very minor crash, nothing may be necessary.
But the belt assemblies that were used during any
crash may have been stressed or damaged. See your
dealer/retailer to have your safety belt assemblies
inspected or replaced.
If your vehicle has the LATCH system and it was being
used during a crash, you may need new LATCH
system parts.
New parts and repairs may be necessary even if the
belt or LATCH system (if equipped), was not being used
at the time of the crash.
If an airbag inates, you will need to replace airbag
system parts. See the part on the airbag system earlier
in this section.
Have your safety belt pretensioners checked if your
vehicle has been in a crash, if your airbag readiness
light stays on after you start your vehicle, or while you
are driving. SeeAirbag Readiness Light on page 3-34.
1-77

✍NOTES
1-78

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

Object Detection Systems...............................2-50
Rear Vision Camera......................................2-50
OnStar
®System.............................................2-53
Universal Home Remote System.......................2-57
Universal Home Remote System Operation
(With Three Round LED)............................2-57Storage Areas................................................2-64
Glove Box...................................................2-64
Cupholder(s)................................................2-64
Center Console Storage.................................2-64
Luggage Carrier...........................................2-65
Rear Seat Armrest........................................2-65
Cargo Tie Downs (SUT)................................2-65
All-Weather Cargo Area (SUT)........................2-66
Sunroof.........................................................2-67
Section 2 Features and Controls
2-2

Keys
{CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons, children
or others could be badly injured or even killed.
They could operate the power windows or
other controls or even make the vehicle move.
The windows will function with the keys in the
ignition and they could be seriously injured or
killed if caught in the path of a closing
window. Do not leave the keys in a vehicle
with children.
2-3

The key can be used for the ignition and all door locks.
The key has a bar-coded key tag that the dealer/retailer
or qualied locksmith can use to make new keys.
Store this information in a safe place, not in your
vehicle.
See your dealer/retailer if a replacement key or
additional key is needed.
Notice:If you ever lock your keys in your vehicle,
you may have to damage the vehicle to get in.
Be sure you have spare keys.
If you are locked out of your vehicle, call the Roadside
Assistance Center. SeeRoadside Assistance Program
on page 7-6.Remote Keyless Entry (RKE)
System
Your Remote Keyless Entry (RKE) system operates on
a radio frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
2-4

At times you may notice a decrease in operating range.
This is normal for any RKE system. If the transmitter
does not work or if you have to stand closer to
your vehicle for the transmitter to work, try this:
Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
Check to determine if battery replacement is
necessary. See “Battery Replacement” later in this
section.
If you are still having trouble, see your dealer/retailer
or a qualied technician for service.
Remote Keyless Entry (RKE)
System Operation
The Remote Keyless Entry (RKE) transmitter functions
will work up to 195 feet (60 m) away. However, the
operating range may be less while the vehicle is running,
therefore, you may need to be closer to your vehicle
to turn it off than you were to start it.
There are other conditions which can affect the
performance of the transmitter. SeeRemote Keyless
Entry (RKE) System on page 2-4.
/(Remote Vehicle
Start):Press
/to start
the engine from outside the
vehicle using the RKE
transmitter. SeeRemote
Vehicle Start on page 2-8
for additional information.
2-5

Q(Lock):PressQto lock all the doors.
If enabled through the Driver Information Center (DIC),
the turn signal lamps will ash once to indicate
locking has occurred. If enabled through the DIC,
the horn will chirp when
Qis pressed again within
three seconds of the previous press of the lock button.
SeeDIC Vehicle Customization (With DIC Buttons)
on page 3-63for additional information.
Pressing
Qwill arm the content theft-deterrent system.
SeeContent Theft-Deterrent on page 2-24.
"(Unlock):Press"to unlock the driver’s door. If"is
pressed again within three seconds, all remaining doors
will unlock.
If it is dark enough outside, your interior lamps will
come on and stay on for 20 seconds or until the ignition
is turned on. If enabled through the DIC, the turn
signal lamps will ash twice to indicate unlocking has
occurred. SeeDIC Vehicle Customization (With DIC
Buttons) on page 3-63. If enabled through the DIC,
the exterior lights will turn on briey if it is dark enough
outside. See “APPROACH LIGHTING” underDIC
Vehicle Customization (With DIC Buttons) on page 3-63.
Pressing
"on the RKE transmitter will disarm the
content theft-deterrent system. SeeContent
Theft-Deterrent on page 2-24.You can lower the windows by pressing and holding
"
on the RKE transmitter. SeePower Windows on
page 2-20for additional information.
If you use the RKE transmitter to enter your vehicle and
the remote recall memory feature is on, automatic
seat and adjustable mirror movements may occur.
To use this feature again, you must rst perform a recall
to the other memorized position or use the easy exit
feature. See “MEMORY SEAT RECALL” under
DIC Vehicle Customization (With DIC Buttons) on
page 3-63for additional information.
L(Vehicle Locator/Panic Alarm):Press and release
Lto locate your vehicle. The turn signal lamps will
ash and the horn will sound three times.
Press and hold
Lfor more than two seconds to
activate the panic alarm. The turn signal lamps will ash
and the horn will sound repeatedly for 30 seconds.
The alarm will turn off when the ignition is moved
to RUN or
Lis pressed again. The ignition must be in
OFF for the panic alarm to work.
2-6