service HUMMER H3 2007 Service Manual
[x] Cancel search | Manufacturer: HUMMER, Model Year: 2007, Model line: H3, Model: HUMMER H3 2007Pages: 480, PDF Size: 2.73 MB
Page 244 of 480

StabiliTrak®System
Your vehicle has a vehicle stability enhancement
system called StabiliTrak®. It is an advanced
computer controlled system that assists you with
directional control of the vehicle in difficult
driving conditions.
StabiliTrak
®activates when the computer senses
a discrepancy between your intended path and
the direction the vehicle is actually traveling.
StabiliTrak
®selectively applies braking pressure at
any one of the vehicle’s brakes to assist the driver
with keeping the vehicle on the intended path.
When you rst start your vehicle and begin to drive
away, the system performs several diagnostic
checks to insure there are no problems. You may
hear or feel the system working. This is normal and
does not mean there is a problem with your vehicle.
If there is a problem detected with StabiliTrak
®,
a SERVICE STAB SYS message will be displayed
on the Driver Information Center (DIC). See
DIC Warnings and Messages on page 196for
more information. When this message is displayed,
the system is not operational. Adjust your driving
accordingly.StabiliTrak
®comes on automatically whenever you
start your vehicle. However, when the transfer
case is placed in Four-Wheel-Low Lock mode,
StabiliTrak
®is automatically disabled. See
Full-Time Four-Wheel Drive on page 111for more
information. To help assist you with directional
control of the vehicle, you should always leave the
system on. You can turn StabiliTrak
®off if you
ever need to using the TC (traction control) on/off
button. If you press and hold the TC button for
ve seconds, the StabiliTrak
®system and
the traction control system will turn off. When this
is done, the STAB SYS OFF message will be
displayed on the DIC. Press the TC button again
to turn StabiliTrak
®back on. SeeTraction
Control System (TCS) on page 241.
If your vehicle is in cruise control when the
StabiliTrak
®activates, the cruise control will
automatically disengage. When road conditions
allow you to safely use it again, you may reengage
the cruise control. See “Cruise Control on
page 159for more information.
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Page 250 of 480

While driving on a surface with reduced traction,
try your best to avoid sudden steering, acceleration,
or braking, including reducing vehicle speed by
shifting to a lower gear. Any sudden changes could
cause the tires to slide. You may not realize the
surface is slippery until your vehicle is skidding.
Learn to recognize warning clues — such as
enough water, ice, or packed snow on the road to
make a mirrored surface — and slow down when
you have any doubt.
Remember: Any Anti-Lock Brake System (ABS)
helps avoid only the braking skid.
Off-Road Driving
This off-road guide is meant to provide advice
for when you drive your vehicle off paved roads.
Also, seeBraking on page 238.
Off-road driving can be great fun. But it does have
some de nite hazards. The greatest of these is
the terrain itself.
“Off-roading” means you have left the great
North American road system behind. Traffic
lanes are not marked. Curves are not banked.There are no road signs. Surfaces can be slippery,
rough, uphill or downhill. In short, you have
gone right back to nature.
Off-road driving involves some new skills. And
that is why it is very important that you read
this guide. You will nd many driving tips and
suggestions. These will help make your off-road
driving safer and more enjoyable.
Before You Go Off-Roading
There are some things to do before you go out.
For example, be sure to have all necessary
maintenance and service work done. Check to
make sure all underbody shields are properly
attached. Make sure any equipment you
may need — rst aid kit, cell phone, ashlight,
etc. — is securely stored in the vehicle.
Be sure you read all the information about your
four-wheel-drive vehicle in this manual. Is
there enough fuel? Is the spare tire fully in ated?
Are the uid levels up where they should be?
What are the local laws that apply to off-roading
where you will be driving? If you do not know, you
should check with law enforcement people in
the area. Will you be on someone’s private land?
If so, be sure to get the necessary permission.
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