2008 HUMMER H2 lock

Using the Auxiliary Input Jack
Your radio system has an auxiliary input jack located on
the lower right side of the faceplate. This is not an audio
output; do not plug the headphone set into the front
auxiliary input jack. You can however, connect an
external audio device such as an iPod, laptop computer,
MP3 player, CD player, or cassette tape player, etc. to
the auxiliary input jack for use as another source for audio
listening.
Drivers are encouraged to set up any auxiliary device
while the vehicle is in PARK (P). SeeDefensive Driving
on page 4-2for more information on driver distraction.
To use a portable audio player, connect a 3.5 mm
(1/8 inch) cable to the radio’s front auxiliary input jack.
When a device is connected, press the radio CD/AUX
button to begin playing audio from the device over
the vehicle speakers.
For optimal sound quality, increase the portable audio
device’s volume to the loudest level.
It is always best to power your portable audio device
through its own battery while playing.
O(Power/Volume):Turn this knob clockwise or
counterclockwise to increase or decrease the volume
of the portable player. Additional volume adjustments
might have to be made from the portable device if
the volume is not loud or soft enough.BAND:Press this button to listen to the radio when a
portable audio device is playing. The portable audio
device continues playing, so you might want to stop
it or turn it off.
CD/AUX (CD/Auxiliary):Press this button to play a CD
when a portable audio device is playing. Press this button
again and the system begins playing audio from the
connected portable audio player. If a portable audio
player is not connected, “No Input Device Found”
displays.
DVD/CD AUX (CD/Auxiliary):Press this button to cycle
through DVD, CD, or Auxiliary when listening to the radio.
The DVD/CD text label and a message showing track or
chapter number displays when a disc is in either slot.
Press this button again and the system automatically
searches for an auxiliary input device, such as a portable
audio player. If a portable audio player is not connected,
“No Aux Input Device” displays. If a disc is in both the
DVD slot and the CD slot the DVD/CD AUX button cycles
between the two sources and not indicate “No Aux Input
Device”. If a front auxiliary device is connected, the
DVD/CD AUX button cycles through all available options,
such as: DVD slot, CD slot, Front Auxiliary, and Rear
Auxiliary (if available). See “Using the Auxiliary Input
Jack(s)” later in this section, or “Audio/Video (A/V) Jacks”
under,Rear Seat Entertainment (RSE) System on
page 3-105for more information.
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BAND:Press this button to listen to the radio when a
CD or a DVD is playing. The CD or DVD remains inside
the radio for future listening or viewing entertainment.
DVD/CD AUX (Auxiliary):Press this button to cycle
through DVD, CD, or Auxiliary when listening to the radio.
The DVD/CD text label and a message showing track or
chapter number displays when a disc is in either slot.
Press this button again and the system automatically
searches for an auxiliary input device, such as a portable
audio player. If a portable audio player is not connected,
“No Aux Input Device” displays. If a disc is in both the
DVD slot and the CD slot the DVD/CD AUX button cycles
between the two sources and not indicate “No Aux Input
Device”. If a front auxiliary device is connected, the
DVD/CD AUX button cycles through all available options,
such as: DVD slot, CD slot, Front Auxiliary, and Rear
Auxiliary (if available). See “Using the Auxiliary Input
Jack(s)” later in this section, or “Audio/Video (A/V) Jacks”
under,Rear Seat Entertainment (RSE) System on
page 3-105for more information.
If a MP3/WMA is inserted into top DVD slot, the rear seat
operator can turn on the video screen and use the remote
control to navigate the CD (tracks only) through the
remote control.XM Radio Messages
XL (Explicit Language Channels):These channels,
or any others, can be blocked at a customer’s request,
by calling 1-800-852-XMXM (9696).
XM Updating:The encryption code in the receiver is
being updated, and no action is required. This process
should take no longer than 30 seconds.
No XM Signal:The system is functioning correctly, but
the vehicle is in a location that is blocking the XM™
signal. When you move into an open area, the signal
should return.
Loading XM:The audio system is acquiring and
processing audio and text data. No action is needed.
This message should disappear shortly.
Channel Off Air:This channel is not currently in
service. Tune to another channel.
Channel Unavail:This previously assigned channel is
no longer assigned. Tune to another station. If this
station was one of the presets, choose another station
for that preset button.
No Artist Info:No artist information is available at this
time on this channel. The system is working properly.
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No Title Info:No song title information is available at
this time on this channel. The system is working properly.
No CAT Info:No category information is available at
this time on this channel. The system is working properly.
No Information:No text or informational messages are
available at this time on this channel. The system is
working properly.
CAT Not Found:There are no channels available for
the selected category. The system is working properly.
XM TheftLocked:The XM receiver in the vehicle
could have previously been in another vehicle.
For security purposes, XM™ receivers cannot be
swapped between vehicles. If this message appears
after having your vehicle serviced, check with your
dealer/retailer.
XM Radio ID:If tuned to channel 0, this message
alternates with the XM Radio eight digit radio ID label.
This label is needed to activate the service.Unknown:If this message is received when tuned to
channel 0, there could be a receiver fault. Consult
with your dealer/retailer.
Check XM Receivr:If this message does not clear
within a short period of time, the receiver could have
a fault. Consult with your dealer/retailer.
XM Not Available:If this message does not clear
within a short period of time, the receiver could have
a fault. Consult with your dealer/retailer.
Navigation/Radio System
Your vehicle may have a navigation radio system.
The navigation system has built-in features intended
to minimize driver distraction. Technology alone,
no matter how advanced, can never replace your
own judgment. See the Navigation System manual for
some tips to help you reduce distractions while driving.
3-104

Rear Seat Entertainment (RSE)
System
Your vehicle may have a DVD Rear Seat Entertainment
(RSE) system. The RSE system works with the vehicle’s
audio system. The DVD player is part of the front radio.
The RSE system includes a radio with a DVD player, a
video display screen, audio/video jacks, two wireless
headphones, and a remote control. SeeRadio(s) (MP3)
on page 3-75for more information on the vehicle’s
audio/DVD system.
Before You Drive
The RSE is designed for rear seat passengers only.
The driver cannot safely view the video screen
while driving and should not try to do so.
In severe or extreme weather conditions the RSE
system might not work until the temperature is within the
operating range. The operating range for the RSE system
is above−4°F (−20°C) or below 140°F (60°C). If the
temperature of your vehicle is outside of this range, heat
or cool the vehicle until the temperature is within the
operating range of the RSE system.
Parental Control
The RSE system may have a Parental Control feature,
depending on which radio you have. To start Parental
Control, press and hold the radio power button for more
than two seconds to stop all system features such
as: radio, video screen, RSA, DVD and/or CD. While
Parental Control is on, a padlock icon displays.
The radio can be turned back on with a single press
of the power button, but the RSE system will remain
under Parental Control.
To turn Parental Control off, press and hold the radio
power button for more than two seconds. The RSE
returns from where it was previously left and the
padlock icon disappears from the radio display.
Parental Control can also be turned off by inserting
or ejecting any disc, pressing the play icon on the radio
DVD display menu, or changing an ignition position.
3-105

Video Screen
The video screen is located in the overhead console.
To use the video screen, do the following:
1. Push the release button located on the overhead
console.
2. Move the screen to the desired position.
When the video screen is not in use, push it up into its
locked position.
If a DVD is playing and the screen is raised to its locked
position, the screen remains on. This is normal, and
the DVD continues to play through the previous audio
source. Use the remote control power button or eject the
disc to turn off the screen.
The overhead console contains the infrared transmitters
for the wireless headphones and the infrared receivers
for the remote control. They are located at the rear
of the console.
Notice:Avoid directly touching the video screen,
as damage may occur. See “Cleaning the Video
Screen” later in this section for more information.
Remote Control
To use the remote control, aim it at the transmitter
window at the rear of the RSE overhead console and
press the desired button. Direct sunlight or very bright
light could affect the ability of the RSE transmitter to
receive signals from the remote control. If the remote
control does not seem to be working, the batteries might
need to be replaced. See “Battery Replacement” later in
this section. Objects blocking the line of sight could also
affect the function of the remote control.
If a CD or DVD is in the Radio DVD slot, the remote
control power button can be used to turn on the video
screen display and start the disc. The radio can also
turn on the video screen display. SeeRadio(s) (MP3)
on page 3-75for more information.
Notice:Storing the remote control in a hot area or
in direct sunlight can damage it, and the repairs
will not be covered by your warranty. Storage
in extreme cold can weaken the batteries. Keep
the remote control stored in a cool, dry place.
If the remote control becomes lost or damaged, a
new universal remote control can be purchased. If this
happens, make sure the universal remote control uses a
code set of Toshiba
®.
3-109

PROG (Program):Press this button to go to the
next preset radio station or channel set on the main
radio. This function is inactive, with some radios, if
the front seat passengers are listening to the radio.
When a CD or DVD audio disc is playing, press
this button to go to the beginning of the CD or DVD
audio. This function is inactive, with some radios, if
the front seat passengers are listening to the disc.
When a disc is playing in the CD or DVD changer, press
this button to select the next disc, if multiple discs are
loaded. This function is inactive, with some radios, if the
front seat passengers are listening to the disc.
When a DVD video menu is being displayed, press the
PROG button to perform the menu function, Enter.
Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identication Number
(VIN). If the radio is moved to a different vehicle, it does
not operate and LOC, LOCK, or LOCKED could display.
With THEFTLOCK
®activated, the radio does not
operate if stolen.
Audio Steering Wheel Controls
Vehicles with audio
steering wheel controls
could differ depending on
your vehicle’s options.
Some audio controls can
be adjusted at the steering
wheel. They include the
following:
xw(Next/Previous):Press the down or up arrow to
go to the next or to the previous radio station stored
as a favorite.
When a CD/DVD is playing, press either arrow to go to
the next or previous track or chapter.
g(Mute/Voice Recognition):Press and release this
button to silence the vehicle speakers only. The audio of
the wireless and wired headphones, if your vehicle has
these features, does not mute. Press and release this
button again, to turn the sound on.
3-116

Your Driving, the Road, and Your Vehicle..........4-2
Defensive Driving...........................................4-2
Drunk Driving.................................................4-2
Control of a Vehicle........................................4-3
Braking.........................................................4-3
Antilock Brake System (ABS)...........................4-4
Braking in Emergencies...................................4-5
Traction Control System (TCS).........................4-5
Locking Rear Axle..........................................4-6
StabiliTrak
®System........................................4-7
Steering........................................................4-9
Off-Road Recovery.......................................4-11
Passing.......................................................4-12
Loss of Control.............................................4-12
Off-Road Driving...........................................4-13
Assist Steps.................................................4-32
Driving at Night............................................4-32
Driving in Rain and on Wet Roads..................4-33
Before Leaving on a Long Trip.......................4-34
Highway Hypnosis........................................4-34Hill and Mountain Roads................................4-35
Winter Driving..............................................4-36
If Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow.............................................4-39
Rocking Your Vehicle to Get It Out.................4-40
Recovery Loops...........................................4-40
First Aid Kit and Tool Kit...............................4-42
Front Mounted Receiver.................................4-43
Power Winch Platform...................................4-43
Loading Your Vehicle....................................4-44
Towing..........................................................4-51
Towing Your Vehicle.....................................4-51
Recreational Vehicle Towing...........................4-51
Selectable Extended Rear Ride Height.............4-53
Electronically Controlled Air Suspension
System....................................................4-54
Towing a Trailer...........................................4-55
Trailer Recommendations...............................4-67
Section 4 Driving Your Vehicle
4-1

Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic. This
is a mistake. The brakes might not have time to
cool between hard stops. The brakes will wear out
much faster if you do a lot of heavy braking. If you
keep pace with the traffic and allow realistic following
distances, you will eliminate a lot of unnecessary
braking. That means better braking and longer
brake life.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 5-3.
Antilock Brake System (ABS)
Your vehicle has the Antilock Brake System (ABS),
an advanced electronic braking system that will
help prevent a braking skid.
When you start the engine and begin to drive away,
ABS will check itself. You might hear a momentary
motor or clicking noise while this test is going on.
This is normal.If there is a problem with
the ABS, this warning light
will stay on. SeeAntilock
Brake System Warning
Light on page 3-39.
Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that wheels are slowing down. If
one of the wheels is about to stop rolling, the computer
will separately work the brakes at each front wheel
and at both rear wheels.
ABS can change the brake pressure faster than any
driver could. The computer is programmed to make the
most of available tire and road conditions. This can
help you steer around the obstacle while braking hard.
As you brake, the computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
4-4