Off-Road Driving
This off-road guide is meant to provide advice for when
you drive your vehicle off paved roads. Also, see
Braking on page 4-6.
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.
4-17
Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the
water. This can happen if the road is wet enough and
you are going fast enough. When your vehicle is
hydroplaning, it has little or no contact with the road.
Hydroplaning does not happen often. But it can if your
tires do not have much tread or if the pressure in
one or more is low. It can happen if a lot of water is
standing on the road. If you can see re ections
from trees, telephone poles or other vehicles, and
raindrops “dimple” the water’s surface, there could be
hydroplaning.
Hydroplaning usually happens at higher speeds. There
just is not a hard and fast rule about hydroplaning.
The best advice is to slow down when it is raining.
Driving Through Deep Standing Water
Notice:If you drive too quickly through deep
puddles or standing water, water can come in
through your engine’s air intake and badly damage
your engine. Never drive through water that is
slightly lower than the underbody of your vehicle. If
you can not avoid deep puddles or standing
water, drive through them very slowly.
Driving Through Flowing Water
{CAUTION:
Flowing or rushing water creates strong forces.
If you try to drive through owing water, as you
might at a low water crossing, your vehicle can
be carried away. As little as six inches of
owing water can carry away a smaller vehicle.
If this happens, you and other vehicle
occupants could drown. Do not ignore police
warning signs, and otherwise be very cautious
about trying to drive through owing water.
Some Other Rainy Weather Tips
Besides slowing down, allow some extra following
distance. And be especially careful when you
pass another vehicle. Allow yourself more clear
room ahead, and be prepared to have your
view restricted by road spray.
Have good tires with proper tread depth. SeeTires
on page 5-60.
4-45
Customer Assistance and Information...............7-2
Customer Satisfaction Procedure......................7-2
Online Owner Center......................................7-3
Customer Assistance for Text Telephone (TTY)
Users........................................................7-4
Customer Assistance Offices............................7-4
GM Mobility Program for Persons with
Disabilities..................................................7-5
Roadside Assistance Program..........................7-5
Courtesy Transportation...................................7-7
Vehicle Data Collection and Event Data
Records.....................................................7-9Reporting Safety Defects................................7-10
Reporting Safety Defects to the United States
Government..............................................7-10
Reporting Safety Defects to the Canadian
Government..............................................7-10
Reporting Safety Defects to General Motors.....7-10
Service Publications Ordering Information.........7-11
Section 7 Customer Assistance and Information
7-1
The BBB Auto Line Program is an out of court program
administered by the Council of Better Business
Bureaus to settle automotive disputes regarding vehicle
repairs or the interpretation of the New Vehicle
Limited Warranty. Although you may be required to
resort to this informal dispute resolution program prior to
ling a court action, use of the program is free of
charge and your case will generally be heard within
40 days. If you do not agree with the decision given in
your case, you may reject it and proceed with any other
venue for relief available to you.
You may contact the BBB Auto Line Program using the
toll-free telephone number or write them at the
following address:
BBB Auto Line Program
Council of Better Business Bureaus, Inc.
4200 Wilson Boulevard
Suite 800
Arlington, VA 22203-1804
Telephone: 1-800- 955-5100
This program is available in all 50 states and the District
of Columbia. Eligibility is limited by vehicle age,
mileage and other factors. General Motors reserves the
right to change eligibility limitations and/or discontinue
its participation in this program.Online Owner Center
The Owner Center is a resource for your GM ownership
needs. You can nd your speci c vehicle information
all in one place.
The Owner Center allows you to:
Get e-mail service reminders.
Access information about your speci c vehicle,
including tips and videos and an electronic
version of this owner’s manual. (United States only)
Keep track of your vehicle’s service history and
maintenance schedule.
Find GM dealers for service nationwide.
Receive special promotions and privileges only
available to members. (United States only)
Refer to the web for updated information.
To register your vehicle, visit www.MyGMLink.com.
(United States) or My GM Canada within
www.gmcanada.com (Canada).
7-3
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or
speech-impaired and who use Text Telephones (TTYs),
HUMMER has TTY equipment available at its Customer
Assistance Center. Any TTY user can communicate
with HUMMER by dialing: 1-800-833-6537. (TTY users
in Canada can dial 1-800-263-3830.)
Customer Assistance Offices
HUMMER encourages customers to call the toll-free
number for assistance. If a U.S. customer wishes
to write to HUMMER, the letter should be addressed to
HUMMER’s Customer Assistance Center.
United States – Customer Assistance
HUMMER Customer Assistance Center
P.O. Box 33171
Detroit, MI 48232-5177
1-866-HUMMER6 (486-6376)
1-800-833-6537 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-866-HUMMER6 (486-6376)
Fax Number: 313-381-0022
From Puerto Rico:
1-800-496-9992 (English)
1-800-496-9993 (Spanish)
Fax Number: 313-381-0022From U.S. Virgin Islands:
1-800-496-9994
Fax Number: 313-381-0022
Canada – Customer Assistance
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-268-6800
Overseas – Customer Assistance
Please contact the local General Motors Business Unit.
Mexico, Central America and
Caribbean Islands/Countries (Except
Puerto Rico and U.S. Virgin Islands) –
Customer Assistance
General Motors de Mexico, S. de R.L. de C.V.
Customer Assistance Center
Paseo de la Reforma # 2740
Col. Lomas de Bezares
C.P. 11910, Mexico, D.F.
01-800-508-0000
Long Distance: 011-52-53 29 0 800
7-4