2004 CADILLAC XLR traction control

Your Driving, the Road, and Your Vehicle..........4-2
Defensive Driving...........................................4-2
Drunken Driving.............................................4-2
Control of a Vehicle........................................4-5
Braking.........................................................4-6
Traction Control System (TCS).........................4-9
Magnetic Ride Control...................................4-10
Limited-Slip Rear Axle...................................4-10
Stabilitrak
žSystem.......................................4-11
Steering......................................................4-12
Off-Road Recovery.......................................4-15
Passing.......................................................4-15
Loss of Control.............................................4-16
Driving at Night............................................4-18Driving in Rain and on Wet Roads..................4-20
City Driving..................................................4-23
Freeway Driving...........................................4-24
Before Leaving on a Long Trip.......................4-25
Highway Hypnosis........................................4-26
Hill and Mountain Roads................................4-26
Winter Driving..............................................4-28
If You Are Stuck: In Sand, Mud,
Ice or Snow..............................................4-31
Towing..........................................................4-32
Towing Your Vehicle.....................................4-32
Recreational Vehicle Towing...........................4-32
Loading Your Vehicle....................................4-32
Towing a Trailer...........................................4-37
Section 4 Driving Your Vehicle
4-1

There is something else about drinking and driving that
many people do not know. Medical research shows
that alcohol in a person's system can make crash
injuries worse, especially injuries to the brain, spinal
cord or heart. This means that when anyone who has
been drinking Ð driver or passenger Ð is in a crash,
that person's chance of being killed or permanently
disabled is higher than if the person had not been
drinking.
{CAUTION:
Drinking and then driving is very dangerous.
Your re¯exes, perceptions, attentiveness and
judgment can be affected by even a small
amount of alcohol. You can have a serious Ð or
even fatal Ð collision if you drive after drinking.
Please do not drink and drive or ride with a
driver who has been drinking. Ride home in a
cab; or if you are with a group, designate a
driver who will not drink.
Control of a Vehicle
You have three systems that make your vehicle go
where you want it to go. They are the brakes, the steering
and the accelerator. All three systems have to do their
work at the places where the tires meet the road.
Sometimes, as when you are driving on snow or ice, it
is easy to ask more of those control systems than
the tires and road can provide. That means you can lose
control of your vehicle. Also see
Traction Control
System (TCS) on page 4-9andStabilitrakžSystem on
page 4-11.
4-5

Traction Control System (TCS)
Your vehicle has a traction control system that limits
wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that one or both of the rear wheels are spinning or
beginning to lose traction. When this happens,
the system works the rear brakes and reduces engine
power to limit wheel spin.
The TRAC SYSTEM ACTIVE message will display on
the Driver Information Center (DIC) when the traction
control system is limiting wheel spin. See
DIC Warnings
and Messages on page 3-57. You may feel or hear
the system working, but this is normal.
If your vehicle is in cruise control when the traction
control system begins to limit wheel spin, the cruise
control will automatically disengage. When road
conditions allow you to safely use it again, you may
reengage the cruise control. See ªCruise Controlº under
Turn Signal/Multifunction Lever on page 3-5.This warning light will
come on to let you know if
there is a problem with
your traction control
system.
See
Traction Control System (TCS) Warning Light on
page 3-46. When this warning light is on, the system will
not limit wheel spin. Adjust your driving accordingly.
The traction control system automatically comes
on whenever you start your vehicle. To limit wheel spin,
especially in slippery road conditions, you should
always leave the system on. But you can turn the
traction control system off if you ever need to. You
should turn the system off if your vehicle ever gets stuck
in sand, mud or snow and rocking the vehicle is
required. See ªRocking Your Vehicle To Get It Outº
under
If You Are Stuck: In Sand, Mud, Ice or Snow on
page 4-31.
4-9

To turn the system off,
press the traction control
button located on the
center console.
The TRACTION SYSTEM-OFF message will display on
the DIC and the traction control system warning light
will come on. If the system is limiting wheel spin when
you press the button, the TRACTION SYSTEM-OFF
message will display ± but the system will not turn
off right away. It will wait until there is no longer
a current need to limit wheel spin.
You can turn the system back on at any time by
pressing the button again. The TRACTION SYSTEM-ON
message should display brie¯y on the Driver Information
Center.Magnetic Ride Control
Magnetic Ride Control automatically adjusts the ride of
your vehicle. Automatic ride control is achieved
through a computer used to control and monitor the
suspension system. The controller receives input from
various sensors to determine the proper system
response. If the controller detects a problem within the
system, the DIC will display a SERVICE RIDE
CONTROL message. See
DIC Warnings and Messages
on page 3-57for more information. See your dealer
for service.
Limited-Slip Rear Axle
Your limited-slip rear axle 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 rear wheels has no traction and the other does, this
feature will allow the wheel with traction to move the
vehicle.
4-10

StabilitrakžSystem
The StabilitrakžSystem is a computer controlled system
that helps the driver maintain directional control of the
vehicle in difficult driving conditions. This is
accomplished by selectively applying any one of the
vehicle's brakes.
When you ®rst start your vehicle and begin to drive
away (6 mph (10 km/h)), especially during cold weather,
the message STABILITRAK WARMING may be
displayed in the Driver Information Center (DIC), the
instrument cluster light will be on, and a chime will
sound. This is normal. You can acknowledge this
message by pressing the RESET button. The
Stabilitrak
žSystem performance is affected until the
message, STABILITRAK READY, is displayed in
the DIC.
The WAIT FOR STABILITRAK message may be
displayed in the DIC after exceeding 19 mph (30 km/h)
for 10 seconds if the steering is not centered. The
system is off until the STABILITRAK ACTIVE message
is displayed.
The STABILITRAK ACTIVE message will come on
when the system is operating. See
DIC Warnings and
Messages on page 3-57for more information. You
may also feel or hear the system working. This
is normal.The instrument cluster light
will come on and a chime
will sound to let you
know if there is a problem
with the system.
The SERVICE STABILITRAK message will also be
displayed. See
DIC Warnings and Messages on
page 3-57for more information.
When this light and the SERVICE STABILITRAK
message are on, the system is not operational. Adjust
your driving accordingly.
The system comes on automatically whenever you start
your vehicle. To help maintain directional control of
the vehicle, you should always leave the system on. You
can turn the system off if you ever need to. If you turn
the STABILITRAK
žSystem off, the Traction Control
System will also be turned off. Adjust your driving
accordingly.
4-11

To turn the system off,
press and hold the traction
control button on the
console for ®ve seconds
with the vehicle stopped.
You can turn the
system back on at any
time by pressing the
button.
The DIC will display the appropriate message when you
push the button, either TRAC/STABILITRAK ON or
TRAC/STABILITRAK OFF.Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Magnetic Speed Variable Assist
Steering
Your vehicle is equipped with a steering system that
continuously adjusts the effort you feel when steering at
all vehicle speeds. It provides ease when parking,
yet a ®rm, solid feel at highway speeds.
4-12

Steering Tips
Driving on Curves
It is important to take curves at a reasonable speed.
A lot of the ªdriver lost controlº accidents mentioned on
the news happen on curves. Here is why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when
you turn the front wheels. If there is no traction, inertia
will keep the vehicle going in the same direction. If
you have ever tried to steer a vehicle on wet ice, you
will understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you are in a curve, speed is the one factor you
can control.Suppose you are steering through a sharp curve.
Then you suddenly accelerate. Both control
systems Ð steering and acceleration Ð have to do their
work where the tires meet the road. Adding the
sudden acceleration can demand too much of those
places. You can lose control. See
Traction Control
System (TCS) on page 4-9.
What should you do if this ever happens? Ease up on
the accelerator pedal, steer the vehicle the way you
want it to go, and slow down.
Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds
are based on good weather and road conditions. Under
less favorable conditions you will want to go slower.
If you need to reduce your speed as you approach
a curve, do it before you enter the curve, while your front
wheels are straight ahead.
Try to adjust your speed so you can ªdriveº through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
4-13

Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking reasonable
care suited to existing conditions, and by not
ªoverdrivingº those conditions. But skids are always
possible.
The three types of skids correspond to your vehicle's
three control systems. In the braking skid, your wheels
are not rolling. In the steering or cornering skid, too
much speed or steering in a curve causes tires to slip
and lose cornering force. And in the acceleration
skid, too much throttle causes the driving wheels
to spin.
A cornering skid is best handled by easing your foot off
the accelerator pedal.
Remember: Any traction control system helps avoid only
the acceleration skid. If your TCS system is off, then
an acceleration skid is also best handled by easing your
foot off the accelerator pedal.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 engine braking 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 Ð such as enough water, ice or packed snow
on the road to make a ªmirrored surfaceº Ð and slow
down when you have any doubt.
Remember: Any anti-lock brake system (ABS) helps
avoid only the braking skid.
4-17