2007 CADILLAC XLR traction control

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 hear a motor or clicking noise and
feel the brake pedal move a little during a stop,
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.
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.
SeeDIC Warnings and Messages on page 206.
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.
SeeAdaptive Cruise Control on page 150or
Cruise Control on page 147for more information.
329

This warning light will
come on to let you
know if there is
a problem with your
traction control system.
SeeTraction Control System (TCS) Warning Light
on page 194. 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. SeeRocking
Your Vehicle to Get It Out on page 354andIf Your
Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 353for more information.To turn the system off,
press the front part of
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 briey on
the Driver Information Center. SeeDIC Warnings
and Messages on page 206for more information.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 363for more information.
330

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.
SeeDIC Warnings and Messages on page 206for
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.
StabiliTrak®System
The StabiliTrak®System 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 panel
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
®System performance is affected until
the message, STABILITRAK READY, is
displayed in the DIC. This can take up to
15 minutes.
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.
331

The STABILITRAK ACTIVE message will come on
when the system is operating. SeeDIC Warnings
and Messages on page 206for more information.
You may also feel or hear the system working.
This is normal.
The instrument panel
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. SeeDIC Warnings and Messages on
page 206for 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 youever need to. If you turn the StabiliTrak®system
off, the Traction Control System will also be turned
off. Adjust your driving accordingly.
To turn the system off,
press and hold the front
part of 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.
332

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 has 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.
Steering Tips
It is important to take curves at a reasonable
speed.
A lot of the “driver lost control” 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 the 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 — steering and acceleration — 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.
SeeTraction Control System (TCS) on page 329.
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.
333

Try not to pass more than one vehicle at a
time on two-lane roads. Reconsider before
passing the next vehicle.
Do not overtake a slowly moving vehicle too
rapidly. Even though the brake lamps are
not ashing, it may be slowing down or starting
to turn.
If you are being passed, make it easy for the
following driver to get ahead of you. Perhaps
you can ease a little to the right.
Loss of Control
Let us review what driving experts say about what
happens when the three control systems — brakes,
steering, and acceleration — do not have enough
friction where the tires meet the road to do what the
driver has asked.
In any emergency, do not give up. Keep trying to
steer and constantly seek an escape route or
area of less danger.
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 overdriving 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 traction
control system is off, then an acceleration
skid is also best handled by easing your foot off
the accelerator pedal.
337

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.Racing or Other Competitive
Driving (XLR-V)
See your warranty book before using your vehicle
for racing or other competitive driving.
Notice:If you use your vehicle for racing or
other competitive driving, the engine may
use more oil than it would with normal use.
Low oil levels can damage the engine. Be sure
to check the oil level often during racing or
other competitive driving and keep the level at
or near 2 quarts (2 L) above the upper mark
that shows the proper operating range on the
engine oil dipstick. For information on how
to add oil, seeEngine Oil on page 377.
After the competitive driving, remove excess
oil so that the level on the dipstick is not above
the upper mark that shows the proper
operating range.
338

Driving On Snow or Ice
Most of the time, those places where the tires
meet the road probably have good traction.
However, if there is snow or ice between the tires
and the road, you can have a very slippery
situation. You will have a lot less traction, or grip,
and will need to be very careful.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.
Traction control improves your ability to accelerate
when driving on a slippery road. Even though
your vehicle has the Traction Control System
(TCS), you will want to slow down and adjust your
driving to the road conditions. Under certain
conditions, you may want to turn the TCS off, such
as when driving through deep snow and loose
gravel, to help maintain vehicle motion at
lower speeds. SeeTraction Control System (TCS)
on page 329. The StabiliTrak
®System may
also activate. SeeStabiliTrak®System on
page 331.
350