Your Driving, the Road, and
Your Vehicle............................................ 322
Defensive Driving...................................... 322
Drunken Driving........................................ 323
Control of a Vehicle.................................. 326
Braking...................................................... 326
Anti-Lock Brake System (ABS).................. 327
Braking in Emergencies............................. 329
Locking Differential.................................... 329
Road Sensing Suspension......................... 329
StabiliTrak
®System................................... 330
All-Wheel Drive (AWD) System.................. 332
Steering.................................................... 333
Off-Road Recovery.................................... 335
Passing..................................................... 335
Loss of Control.......................................... 337
Off-Road Driving........................................ 338
Driving at Night......................................... 354Driving in Rain and on Wet Roads............ 355
City Driving............................................... 358
Freeway Driving........................................ 359
Before Leaving on a Long Trip.................. 360
Highway Hypnosis..................................... 361
Hill and Mountain Roads........................... 362
Winter Driving........................................... 364
If Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow.......................................... 368
Rocking Your Vehicle to Get It Out........... 368
Recovery Hooks........................................ 369
Loading Your Vehicle................................ 370
Towing........................................................ 376
Towing Your Vehicle ................................. 376
Recreational Vehicle Towing...................... 376
Autoride
®................................................... 378
Towing a Trailer........................................ 379
Trailer Recommendations.......................... 392
Section 4 Driving Your Vehicle
321
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. Your brakes may
not have time to cool between hard stops. Your
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.
If your engine ever stops while you are driving,
brake normally but do not pump your brakes.
If you do, the pedal may get harder to push down.
If your engine stops, you will still have some
power brake assist. But you will use it when you
brake. Once the power assist is used up, it
may take longer to stop and the brake pedal
will be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 396.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system
that will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.
If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 237.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP
problem, both the brake and ABS warning lights
will come on accompanied by a 10-second
chime. The lights and chime will come on each
time the ignition is turned on until the problem is
repaired. See your dealer for service.
327
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, your computer keeps receiving
updates on wheel speed and controls braking
pressure accordingly.
328
Remember: ABS does not change the time you
need to get your foot up to the brake pedal
or always decrease stopping distance. If you get
too close to the vehicle in front of you, you will not
have time to apply your brakes if that vehicle
suddenly slows or stops. Always leave enough
room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down rmly and let anti-lock work for you.
You may feel the brakes vibrate, or you may notice
some noise, but this is normal.
Braking in Emergencies
With ABS, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
Locking Differential
If your vehicle has this feature, your locking
differential can give you additional traction on
snow, mud, ice, sand or gravel. It works like
a standard axle most of the time, but when one of
the wheels has no traction and the other does,
this feature will allow the wheel with traction
to move the vehicle.
Road Sensing Suspension
The Road Sensing Suspension (RSS) feature
provides superior vehicle ride and handling under
a variety of passenger and loading conditions.
The system is fully automatic and uses a computer
controller to continuously monitor vehicle speed,
wheel to body position, lift/dive and steering
position of the vehicle. The controller then sends
signals to each shock absorber to independently
adjust the damping level to provide the optimum
vehicle ride.
329
RSS also interacts with the tow/haul mode that,
when engaged, will provide additional control
of the shock absorbers. This additional control
results in better ride and handling characteristics
when the vehicle is loaded or towing a trailer.
See “Tow/Haul Mode” underTowing a Trailer on
page 379.
StabiliTrak®System
Your vehicle is equipped with StabiliTrak®, which
combines antilock brake, traction and stability
control systems and helps the driver maintain
directional control of the vehicle in most driving
conditions.
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. The system should initialize
before the vehicle reaches 20 mph (32 km/h).
In some cases, it may take approximately
two miles of driving before the system initializes.If the system fails to turn on or activate, the
STABILITRAK OFF or SERVICE STABILITRAK
message will be displayed. If the vehicle has gone
through heavy acceleration or braking or multiple
turns during the rst two miles of driving after
starting your vehicle, these messages may also
appear. If this is the case, your vehicle does
not need servicing. You will need to turn
the vehicle off and then restart it to initialize
StabiliTrak
®. If either message appears on the
Driver Information Center (DIC), and your vehicle
hasn’t gone through hard acceleration, braking
or multiple turns in the rst two miles of driving,
your vehicle should be taken in for service.
For more information on the stability messages,
seeDriver Information Center (DIC) on page 245.
StabiliTrak
®activates when the computer
senses that your vehicle is just starting to spin, as
it might if you hit a patch of ice or other slippery
spot on the road. When the system activates, you
may hear a noise or feel a vibration in the
brake pedal. This is normal. The system is
designed to help you in bad weather or other
difficult driving situations by making the most of
whatever road conditions will permit.
330
If you turn off StabiliTrak®, only the brake-traction
control portion of traction control will work. The
engine speed management will be disabled. In this
state, engine power is not reduced automatically
and the driven wheels can spin more freely.
This can cause the brake-traction control to
activate constantly.
Notice:If you allow the wheel(s) of one axle
to spin excessively while the StabiliTrak
®,
ABS and brake warning lights and the
SERVICE STABILITRAK message are
displayed, you could damage the transfer
case. The repairs would not be covered by
your warranty. Reduce engine power and
do not spin the wheel(s) excessively while
these lights and this message are displayed.
The traction control system may activate on
dry or rough roads or under conditions such
as heavy acceleration while turning or abrupt
upshifts/downshifts of the transmission. When
this happens you may notice a reduction in
acceleration, or may hear a noise or vibration.
This is normal.If your vehicle is in cruise control when the system
activates, the StabiliTrak
®light will ash and the
cruise control will automatically disengage.
When road conditions allow you to use cruise
again, you may re-engage the cruise control.
SeeCruise Control on page 202.
StabiliTrak
®may also turn off automatically if it
determines that a problem exists with the system.
If the problem does not clear itself after restarting
the vehicle, you should see your dealer for
service.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 396for more information.
All-Wheel Drive (AWD) System
If your vehicle is equipped with this feature,
engine power is sent to all four wheels when extra
traction is needed. This is like four-wheel drive,
but there is no separate lever or switch to engage
or disengage the front axle. It is fully automatic,
and adjusts itself as needed for road conditions.
332
If your vehicle starts to slide, ease your foot off
the accelerator pedal and quickly steer the
way you want the vehicle to go. If you start
steering quickly enough, your vehicle may
straighten out. Always be ready for a second skid
if it occurs.
Of course, traction is reduced when water, snow,
ice, gravel, or other material is on the road.
For safety, you will want to slow down and adjust
your driving to these conditions. It is important
to slow down on slippery surfaces because
stopping distance will be longer and vehicle control
more limited.
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 for vehicles that have
all-wheel drive. If your vehicle does not have
all-wheel drive or if it has 20-inch tire/wheel
assemblies, you should not drive off-road unless
you are on a level, solid surface. SeeTires
on page 454.
Many of the same design features that help make
your vehicle responsive on paved roads during
poor weather conditions — features like all-wheel
drive — help make it much better suited for
off-road use. Its higher ground clearance also
helps your vehicle step over some off-road
obstacles. But your vehicle does not have features
like special underbody shielding and a transfer
case low gear range, things that are usually
thought necessary for extended or severe off-road
service.
Also, seeBraking on page 326.
Off-road driving can be great fun. But it does have
some de nite hazards. The greatest of these is
the terrain itself.
338
What is the worst time for this? Wet ice. Very cold
snow or ice can be slick and hard to drive on.
But wet ice can be even more trouble because it
may offer the least traction of all. You can get
wet ice when it is about freezing, 32°F (0°C), and
freezing rain begins to fall. Try to avoid driving
on wet ice until salt and sand crews can get there.
Whatever the condition — smooth ice, packed,
blowing, or loose snow — drive with caution.Accelerate gently. Try not to break the fragile
traction. If you accelerate too fast, the drive wheels
will spin and polish the surface under the tires
even more. SeeStabiliTrak
®System on page 330,
If Your Vehicle is Stuck in Sand, Mud, Ice, or
Snow on page 368, andRocking Your Vehicle to
Get It Out on page 368.
The Anti-Lock Brake System (ABS) improves
your vehicle’s stability when you make a hard stop
on a slippery road. Even though you have ABS,
you will want to begin stopping sooner than
you would on dry pavement. SeeAnti-Lock Brake
System (ABS) on page 327.
Allow greater following distance on any
slippery road.
Watch for slippery spots. The road might be
ne until you hit a spot that is covered with ice.
On an otherwise clear road, ice patches may
appear in shaded areas where the sun cannot
reach, such as around clumps of trees, behind
buildings, or under bridges. Sometimes the
surface of a curve or an overpass may remain
icy when the surrounding roads are clear. If you
see a patch of ice ahead of you, brake before
you are on it. Try not to brake while you are
actually on the ice, and avoid sudden steering
maneuvers.
365