2006 CADILLAC STS Owners Manual

Statistics show that the chance of being in a collision
increases sharply for drivers who have a BAC of
0.05 percent or above. A driver with a BAC level of
0.06 percent has doubled his or her chance of having a
collision. At a BAC level of 0.10 percent, the chance of
this driver having a collision is 12 times greater; at a
level of 0.15 percent, the chance is 25 times greater!
The body takes about an hour to rid itself of the alcohol in
one drink. No amount of coffee or number of cold
showers will speed that up. “I will be careful” is not the
right answer. What if there is an emergency, a need to
take sudden action, as when a child darts into the street?
A person with even a moderate BAC might not be able to
react quickly enough to avoid the collision.
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 — driver or passenger — 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 reexes, perceptions, attentiveness, and
judgment can be affected by even a small
amount of alcohol. You can have a serious — or
even fatal — 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.
4-5

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. SeeTraction Control System
(TCS) on page 4-9andStabiliTrak
®System on
page 4-11.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3.
Braking
SeeBrake System Warning Light on page 3-64.
Braking action involves perception time and
reaction time.
First, you have to decide to push on the brake pedal.
That is perception time. Then you have to bring up your
foot and do it. That is reaction time.
Average reaction time is about three-fourths of a
second. But that is only an average. It might be less
with one driver and as long as two or three seconds or
more with another. Age, physical condition, alertness,
coordination, and eyesight all play a part. So do alcohol,
drugs, and frustration. But even in three-fourths of a
second, a vehicle moving at 60 mph (100 km/h) travels
66 feet (20 m). That could be a lot of distance in an
emergency, so keeping enough space between
your vehicle and others is important.
And, of course, actual stopping distances vary greatly
with the surface of the road, whether it is pavement
or gravel; the condition of the road, whether it is
wet, dry, or icy; tire tread; the condition of your brakes;
the weight of the vehicle; and the amount of brake
force applied.
4-6

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 Modications
on page 5-3.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, and you
may even notice that your brake pedal moves a
little. This is normal.
If there is a problem with
ABS, this warning light will
stay on. SeeAnti-Lock
Brake System Warning
Light on page 3-65.
4-7

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 wheel.
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.
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.
4-8

Using ABS
Do not pump the brakes. Just hold the brake pedal
down rmly and let anti-lock work for you. You may hear
the anti-lock pump or motor operate, and feel the
brake pedal pulsate, 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.This warning light will
come on to let you know
if there’s a problem
with your traction control
system.
SeeTraction Control System (TCS) Warning Light on
page 3-66. 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.
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 and STS-V
vehicles, you may still feel the system working. This is
normal and necessary with the AWD hardware on
your vehicle.
4-9

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 4-32andIf Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow on page 4-31for more information. See
alsoWinter Driving on page 4-27for information
on using TCS when driving in snowy or icy conditions.
To turn the system off,
press the TC (traction
control) button located
near the shift lever.
If you press the TC 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 button again to turn StabiliTrak
®back on.
For more information, seeStabiliTrak®System on
page 4-11.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3for more information.
Competitive Driving Mode (STS-V)
The driver can select this optional handling mode
by pressing the Traction Control button, located near
the shift lever, twice within ve seconds. Competitive
driving mode allows the driver to have control of
the power applied to the rear wheels, while the
StabiliTrak
®system helps steer the vehicle by selective
brake application. In competitive mode, the levels at
which StabiliTrak
®is engaged have been modied
to better suit a performance driving environment. When
the traction control warning light is on, the Traction
Control System will not be operating. Adjust your
driving accordingly.
When you press the Traction Control button again,
the Traction Control System will be on. The traction
engaged symbol will be displayed temporarily in the
DIC and a chime will be heard. SeeDIC Warnings
and Messages on page 3-79for more information.
4-10

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.
SeeDIC Warnings and Messages on page 3-79for
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
Your vehicle is equipped with a vehicle stability
enhancement system called StabiliTrak®.Itisan
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 system activates, a STABILITY SYS ACTIVE
message will be displayed on the Driver Information
Center. SeeDIC Warnings and Messages on page 3-79.
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.
If there is a problem detected with StabiliTrak
®,a
SERVICE STABILITY SYS message will be displayed
on the Driver Information Center. SeeDIC Warnings
and Messages on page 3-79. When this message
is displayed, the system is not operational. Driving
should be adjusted accordingly.
4-11

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. SeeTraction Control
System (TCS) on page 4-9.
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 3-16orAdaptive Cruise
Control on page 3-19for 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.
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.
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.
4-12