traction control CADILLAC SRX 2007 1.G User Guide

Your Driving, the Road, and Your Vehicle... 274
Defensive Driving...................................... 274
Drunken Driving........................................ 275
Control of a Vehicle.................................. 278
Braking...................................................... 278
Anti-Lock Brake System (ABS).................. 279
Braking in Emergencies............................. 281
Traction Control System (TCS).................. 281
Magnetic Ride Control............................... 283
Limited-Slip Rear Axle............................... 283
StabiliTrak
®System................................... 283
Panic Brake Assist.................................... 284
All-Wheel Drive (AWD) System.................. 284
Steering.................................................... 285
Off-Road Recovery.................................... 287
Passing..................................................... 287
Loss of Control.......................................... 289
Off-Road Driving........................................ 291Driving at Night......................................... 306
Driving in Rain and on Wet Roads............ 308
City Driving............................................... 311
Freeway Driving........................................ 312
Before Leaving on a Long Trip.................. 313
Highway Hypnosis..................................... 314
Hill and Mountain Roads........................... 315
Winter Driving........................................... 317
If Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow.......................................... 321
Rocking Your Vehicle to Get It Out........... 322
Loading Your Vehicle................................ 322
Towing........................................................ 328
Towing Your Vehicle ................................. 328
Recreational Vehicle Towing...................... 328
Level Control............................................. 330
Towing a Trailer........................................ 331
Section 4 Driving Your Vehicle
273

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.
Traction Control System (TCS)
Your vehicle has a traction control system that
limits wheel spin. This is especially useful in
slippery road conditions. On a rear-wheel-drive
vehicle, the system operates if it senses that
one or both of the rear wheels are spinning or
beginning to lose traction. On an All-Wheel-Drive
(AWD) vehicle, the system will operate if it
senses that any of the wheels are spinning or
beginning to lose traction. When this happens, the
system brakes the spinning wheel(s) and/or
reduces engine power to limit wheel spin.
You may feel or hear the system working, but this
is normal.
The TCS warning light will also ash to indicate
that the traction control system is active.
This warning light will
come on to let you
know if there is
a problem with your
traction control system.
281

SeeTraction Control System (TCS) Warning Light
on page 206. When this warning light is on, the
system will not limit wheel spin. Adjust your driving
accordingly.
The TCS 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.
Notice:Do not repeatedly brake or accelerate
heavily when the TCS is off. You could
damage your vehicle’s driveline.
When the TCS is switched off on AWD vehicles,
you may still feel the system working. This is
normal and necessary with the AWD hardware on
your vehicle.
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 322andIf Your Vehicle
is Stuck in Sand, Mud, Ice, or Snow on page 321
for more information. See alsoWinter Driving
on page 317for information on using TCS when
driving in snowy or icy conditions.To turn the system off,
press the TC (traction
control) button
located on the console
under the climate
controls.
If you press the TC (traction control) button once,
the traction control system will turn off and the
traction control system warning light will come on.
Press the TC button again to turn the system
back on. If you press and hold the TC button for
ve seconds, the StabiliTrak
®system and the
traction control system will turn off. Press the TC
(traction control) button again to turn StabiliTrak
®
back on. For more information, seeStabiliTrak®
System on page 283.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 347for more information.
282

Magnetic Ride Control
Your vehicle may have Magnetic Ride Control
that 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 SUSPENSION SYS message. See
DIC Warnings and Messages on page 220
for more information. See your dealer for service.
Limited-Slip Rear Axle
Your vehicle may have this feature. A 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
Your vehicle is equipped with 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 help steer the
vehicle in the direction which you are steering.
When the stability control system activates,
the traction control system and StabiliTrak
®light
will ash on the instrument panel cluster. This also
occurs when traction control is activated. You
may also hear a noise or feel vibration in the brake
pedal. This is normal. Continue to steer the
vehicle in the direction you want it to go.
283

If there is a problem detected with StabiliTrak®,a
SERVICE STABILITRAK message will be
displayed on the Driver Information Center. See
DIC Warnings and Messages on page 220. When
this message is displayed, the system is not
operational. Driving should be adjusted
accordingly.
StabiliTrak
®comes on automatically whenever you
start your vehicle. 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 through the TC
(traction control) on/off button. A STABILITRAK
OFF message will appear in the DIC when it has
been turned off. SeeTraction Control System
(TCS) on page 281.
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. SeeCruise Control on
page 174for more information.
Panic Brake Assist
Your vehicle has a panic brake assist system that
monitors the intention of the driver while braking.
If the system senses that the driver has applied
hard/fast pressure to the brake pedal, the system
will generate additional pressure, making it
easier for the driver to maintain brake application.
When this happens the brake pedal will feel
easier to push. Just hold the brake pedal down
rmly and let the system work for you. You
may feel the brakes vibrate, or you may notice
some noise but this is normal. The brakes
will return to normal operation after the brake
pedal has been released.
All-Wheel Drive (AWD) System
If your vehicle is equipped with this feature, engine
power is sent to all four wheels all the time. This
is like four-wheel drive, but it is fully automatic.
284

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.
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.
SeeStabiliTrak
®System on page 283.
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
the front wheels are straight ahead.
285

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.
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.
290

Controlling your vehicle is the key to successful
off-road driving. One of the best ways to control
your vehicle is to control your speed. Here are
some things to keep in mind. At higher speeds:
You approach things faster and you have less
time to scan the terrain for obstacles.
You have less time to react.
You have more vehicle bounce when you drive
over obstacles.
You will need more distance for braking,
especially since you are on an unpaved
surface.
{CAUTION:
When you are driving off-road, bouncing
and quick changes in direction can easily
throw you out of position. This could
cause you to lose control and crash. So,
whether you are driving on or off the road,
you and your passengers should wear
safety belts.
Scanning the Terrain
Off-road driving can take you over many different
kinds of terrain. You need to be familiar with
the terrain and its many different features. Here
are some things to consider.
Surface Conditions:Off-roading can take you
over hard-packed dirt, gravel, rocks, grass, sand,
mud, snow, or ice. Each of these surfaces
affects the steering, acceleration, and braking of
your vehicle in different ways. Depending upon the
kind of surface you are on, you may experience
slipping, sliding, wheel spinning, delayed
acceleration, poor traction, and longer braking
distances.
294

Driving on Off-Road Hills
Off-road driving often takes you up, down, or
across a hill. Driving safely on hills requires good
judgment and understanding of what your
vehicle can and cannot do. There are some hills
that simply cannot be driven, no matter how
well built the vehicle.
{CAUTION:
Many hills are simply too steep for any
vehicle. If you drive up them, you will
stall. If you drive down them, you cannot
control your speed. If you drive across
them, you will roll over. You could be
seriously injured or killed. If you have any
doubt about the steepness, do not drive
the hill.
Approaching a Hill
When you approach a hill, you need to decide if it
is one of those hills that is just too steep to
climb, descend, or cross. Steepness can be hard
to judge. On a very small hill, for example,
there may be a smooth, constant incline with only
a small change in elevation where you can
easily see all the way to the top. On a large hill,
the incline may get steeper as you near the
top, but you may not see this because the crest of
the hill is hidden by bushes, grass, or shrubs.
Here are some other things to consider as
you approach a hill.
Is there a constant incline, or does the hill get
sharply steeper in places?
Is there good traction on the hillside, or will
the surface cause tire slipping?
Is there a straight path up or down the hill so
you will not have to make turning maneuvers?
Are there obstructions on the hill that can
block your path, such as boulders, trees, logs,
or ruts?
296

Driving in Mud, Sand, Snow, or Ice
When you drive in mud, snow, or sand, the wheels
will not get good traction. You cannot accelerate
as quickly, turning is more difficult, and you
will need longer braking distances.
It is best to use a low gear when you are in
mud —the deeper the mud, the lower the gear. In
really deep mud, the idea is to keep your vehicle
moving so you do not get stuck.
When you drive on sand, you will sense a change
in wheel traction. But it will depend upon how
loosely packed the sand is. On loosely packed
sand, such as on beaches or sand dunes, the tires
will tend to sink into the sand. This has an effect
on steering, accelerating, and braking. Drive
at a reduced speed and avoid sharp turns
or abrupt maneuvers.Hard packed snow and ice offer the worst tire
traction. On these surfaces, it is very easy to lose
control. On wet ice, for example, the traction is
so poor that you will have difficulty accelerating.
And, if you do get moving, poor steering and
difficult braking can cause you to slide out
of control.
{CAUTION:
Driving on frozen lakes, ponds, or rivers
can be dangerous. Underwater springs,
currents under the ice, or sudden thaws
can weaken the ice. Your vehicle could
fall through the ice and you and your
passengers could drown. Drive your
vehicle on safe surfaces only.
304