2009 CADILLAC STS change wheel

Driver Information Center (DIC)
The Driver Information Center (DIC) gives you the status
of many of your vehicle’s systems. The DIC is also used
to display warning/status messages. All messages will
appear in the DIC display located at the bottom of the
instrument panel cluster, below the tachometer and
speedometer. The DIC buttons are located on the
instrument panel, to the left of the steering wheel.
The DIC comes on when the ignition is on. After a short
delay, the DIC will display the current driver and the
information that was last displayed before the engine
was turned off.
The top line of the DIC display shows the vehicle
system information and the warning/status messages.
The bottom line of the DIC display shows either the
odometer, the trip odometer A or the trip odometer B
information on the left side. Only one odometer can
appear at a time. See “Trip Information” underDIC
Operation and Displays on page 3-72for information
on changing the display to show the odometer or trip
odometer information. The bottom line of the DIC display
also shows the outside temperature on the right side
and the shift lever position indicator in the center.
SeeAutomatic Transmission Operation on page 2-30
for more information on the shift lever positions.When the sport mode is active, an S will appear next
to the shift position indicator on the center of the DIC
display. When the manual mode is active, an M will
appear on the DIC display. When the normal mode is
active, only the shift position indicator will appear. While
the Driver Shift Control (DSC) feature is active, the DIC
will change to show the selected gear. See “Driver Shift
Control (DSC)” underAutomatic Transmission Operation
on page 2-30for more information.
If a problem is detected, a warning message will appear
on the display. Be sure to take any message that
appears on the display seriously and remember that
clearing the message will only make the message
disappear, not correct the problem.
DIC Operation and Displays
The Driver Information Center (DIC) has different modes
which can be accessed by pressing the four DIC buttons
located on the instrument panel, to the left of the steering
wheel.
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STABILITY COMPETITIVE MODE
If your All-Wheel Drive (AWD) vehicle has the Active
Steering with Enhanced StabiliTrak option, this message
displays when the Competitive Mode for stability control
has been turned on using the TC (traction control) button.
SeeEnhanced StabiliTrak
®on page 4-6for more
information. When the Enhanced StabiliTrak Competitive
Mode has been activated, traction control operates in
competitive mode and cannot be turned off. Also, the
Active Steering and the Magnetic Ride Control systems
operate in the Performance Mode. For more information,
see “Active Steering and Magnetic Ride Control” in the
Index in the Navigation manual.
STABILITY SECURE MODE
If your All-Wheel Drive (AWD) vehicle has the Active
Steering with Enhanced StabiliTrak option, this message
displays when the stability control system is in the
secure mode. Stability Secure Mode is set automatically
when certain system faults or vehicle conditions are
detected. When the Stability Secure Mode is activated,
the stability control system will not respond to driver
requests to change the stability mode until the next
ignition cycle or until the vehicle condition or fault
is returned to normal. SeeEnhanced StabiliTrak
®
on page 4-6for more information.
STABILITY SYS (System) ACTIVE
This message displays any time the StabiliTrak system
or Enhanced StabiliTrak system is actively assisting
with directional control of the vehicle. Slippery road
conditions may exist when this message is displayed,
so adjust your driving accordingly. This message
may stay on for a few seconds after StabiliTrak
stops assisting with directional control of the vehicle.
SeeStabiliTrak
®System on page 4-6orEnhanced
StabiliTrak®on page 4-6for more information.
STABILITY SYS (System) NOT READY
This message displays if the StabiliTrak system is
not ready. Two conditions may cause this message
to display:
The vehicle needs to be driven in a straight line
until the sensors are centered. Once the sensors
are centered, the StabiliTrak system is ready
and the STABILITY SYS READY message displays.
The system needs to warm up. This may occur
when rst starting your vehicle and driving away
during cold winter weather. This is normal.
To acknowledge this message, press the
reset button.
The StabiliTrak performance is affected until the
STABILITY SYS READY message is displayed in the
DIC. SeeStabiliTrak
®System on page 4-6for more
information.
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Bluetooth Controls
Use the buttons located on the steering wheel to
operate the in-vehicle Bluetooth system. SeeAudio
Steering Wheel Controls on page 3-131for more
information.
bg(Push To Talk):Press to answer incoming calls,
to conrm system information, and to start speech
recognition.
Pairing
A Bluetooth enabled cell phone must be paired to the
in-vehicle Bluetooth system rst and then connected to
the vehicle before it can be used. See the cell phone
manufacturers user guide for Bluetooth functions before
pairing the cell phone. If a Bluetooth phone is not
connected, calls will be made using OnStar
®Hands-Free
Calling, if available. Refer to the OnStar owner’s guide for
more information.Pairing Information:
Up to ve cell phones can be paired to the in-vehicle
Bluetooth system.
The pairing process is disabled when the vehicle is
moving.
The in-vehicle Bluetooth system automatically links
with the rst available paired cell phone in the
order the phone was paired.
Only one paired cell phone can be connected to the
in-vehicle Bluetooth system at a time.
Pairing should only need to be completed once,
unless changes to the pairing information have
been made or the phone is deleted.
To link to a different paired phone, see Linking to a
Different Phone later in this section.
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ABS can change the brake pressure to each wheel, as
required, faster than any driver could. This can help
you steer around the obstacle while braking hard.
As you brake, the 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 the 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 antilock work for you. You might
hear the antilock 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 more than even
the very best braking.
Brake Assist
This vehicle has a Brake Assist feature designed to
assist the driver in stopping or decreasing vehicle speed
in emergency driving conditions. This feature uses the
stability system hydraulic brake control module to
supplement the power brake system under conditions
where the driver has quickly and forcefully applied the
brake pedal in an attempt to quickly stop or slow down
the vehicle. The stability system hydraulic brake control
module increases brake pressure at each corner of the
vehicle until the ABS activates. Minor brake pedal
pulsations or pedal movement during this time is normal
and the driver should continue to apply the brake pedal
as the driving situation dictates The Brake Assist feature
will automatically disengage when the brake pedal is
released or brake pedal pressure is quickly decreased.
4-5

Stability control activates when the computer senses a
difference between the intended path and the direction
the vehicle is actually traveling. Stability control
automatically adjusts the front road wheel steering
angle, modies the suspension stiffness, and selectively
applies braking pressure at any one of the vehicle’s
brakes to help maintain directional control of the vehicle.
When the system activates, a STABILITY SYS
ACTIVE message displays on the Driver Information
Center (DIC). SeeDIC Warnings and Messages
on page 3-79. It is normal to hear a noise or feel
vibration in the brake pedal when the system is working.
Continue to steer the vehicle in the intended direction.
If cruise control is engaged when Enhanced StabiliTrak
activates, the cruise control will automatically disengage.
Cruise Control may be re-engaged when road conditions
allow. SeeCruise Control on page 3-16,orAdaptive
Cruise Control on page 3-20for more information.
Enhanced StabiliTrak comes on automatically in the
Stability Touring Mode, when the vehicle is started.
The Stability Touring Mode is recommended for normal
driving. Enhanced StabiliTrak also has Stability
Competitive Mode that is turned on by pressing the
Traction Control (TC) button twice quickly. This mode is
designed to be used by the performance consciousdriver who desires less stability control intervention.
SeeCompetitive Driving Mode on page 4-11. When the
Stability Control Competitive Mode has been activated,
traction control operates in competitive mode and
cannot be turned off. The STABILITY COMPETITIVE
MODE message will be displayed on the DIC.
SeeDIC Warnings and Messages on page 3-79.
When operating the vehicle in the Stability Competitive
Mode, the system provides less stability control
intervention. Driving should be adjusted accordingly.
When the Stability Competitive Mode has been selected,
the Active Steering and Magnetic Ride Control Touring
Mode is not available. These systems are automatically
changed to the Performance Mode, providing more
response to road conditions and quicker steering
response. For more information, see “Active Steering
and Magnetic Ride Control Mode” in the Index of
the vehicle’s Navigation Manual.
To assist with directional control of the vehicle, always
leave the system on. Stability control can be turned
off however, by using the TC button. SeeTraction
Control System (TCS) on page 4-10. The STABILITY
SYS OFF message will be displayed on the DIC.
SeeDIC Warnings and Messages on page 3-79.
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If there is a problem detected with Enhanced StabiliTrak,
the SERVICE STABILITY SYS message will be
displayed on the DIC. SeeDIC Warnings and Messages
on page 3-79. When this message is displayed, the
system is not operating. Driving should be adjusted
accordingly.
When certain faults or vehicle conditions are detected,
the Stability control will automatically go into a secure
mode and the STABILITY SECURE MODE message will
be displayed on the DIC. When the Stability Secure
Mode is activated, the stability control system will
not respond to driver requests to change the stability
mode until the next ignition cycle or until the vehicle
condition or fault is returned to normal. When the
Stability Secure Mode is activated, other messages
may be displayed, such as SERVICE STEERING SYS,
SERVICE SUSPENSION SYS or CHECK TIRE
PRESSURE on the DIC. When the Stability Secure
Mode is activated, a larger degree of steering wheel
input at low vehicle speeds and a smaller degree
of steering wheel input at high vehicle speeds may be
required. Stability Secure Mode will be activated if
a compact spare tire is being used. SeeDIC Warnings
and Messages on page 3-79andCompact Spare
Tire on page 5-114.Persistent operation of the vehicle in the STABILITY
SECURE MODE may be an indication that the vehicle
needs to be serviced by your dealer/retailer.
When certain faults are present, the vehicle’s speed
may be limited and the SPEED LIMITED TO XXX
message will be displayed on the DIC. SeeDIC
Warnings and Messages on page 3-79. When the
vehicle’s speed is limited, other messages may
be displayed, such as SERVICE STABILITY SYS,
SERVICE STEERING SYS or SERVICE SUSPENSION
SYS on the DIC. Have the vehicle serviced by your
dealer/retailer.
Enhanced StabiliTrak and Traction Control
Mode Selection
Enhanced StabiliTrak can be operated in Touring Mode
or Competitive Mode. It can also be turned off. The
TC button is used to change stability control modes
(Touring, Competitive or Off) as well as to turn traction
control on or off. SeeTraction Control System (TCS)
on page 4-10. The following information describes
the operation of the TC button for changing Traction
Control and Stability Control Modes.
4-8

During some operating conditions, the active steering
might deactivate to protect the system from damage. You
might notice that the center position of the steering wheel
is changed. Unless there is a SERVICE STEERING SYS
message, the system will return to normal operation as
soon as the condition ceases, usually within a very short
period of time.
At low speeds, the active steering system requires less
movement of the steering wheel to change vehicle
direction than the normal power steering system.
Adjust your driving accordingly.
When certain steering faults are present, the active
steering deactivates and vehicle speed might be limited.
The SERVICE STEERING SYS and SPEED LIMITED
TO XXX messages will be displayed. SeeDIC Warnings
and Messages on page 3-79. The normal power steering
system is still operational. You might notice that the
center position of the steering wheel is changed and that
more steering effort at low speeds and less steering effort
at high speeds is required. You can continue to drive your
vehicle with normal power steering but you should have
your dealer/retailer inspect the steering system as soon
as possible in order to have the problem corrected and
the steering wheel position centered.
When stability control activates, the system
automatically adjusts the front road wheel steering
angle, modies the suspension stiffness, and selectivelyapplies braking pressure at any one of the vehicle’s
brakes to help maintain directional control of the vehicle.
Adjustments to the steering will not be felt in the
steering wheel. SeeEnhanced StabiliTrak
®on page 4-6.
It is recommended that the battery not be disconnected
when the steering wheel is turned from the center
position. If this occurs, the center position of the steering
wheel could be temporarily changed a small amount.
You can continue to operate your vehicle and, after
a short time, the center position of the steering wheel
will return to normal.
Steering Tips
It is important to take curves at a reasonable speed.
Traction 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 in a curve, speed is the
one factor you can control.
If you need to reduce speed, do it before you enter the
curve, while the front wheels are straight ahead.
Try to adjust the speed so you can drive 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.
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To help you steer in the direction you want to go, during
certain sharp or sudden cornering maneuvers, gear
selection is controlled. This will maximize the available
drive wheel torque and minimize the transmission
response time and shift activity. During this kind of
maneuver, the transmission shifts automatically
as vehicle speed changes.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and nd
a truck stopped in your lane, or a car suddenly pulls out
from nowhere, or a child darts out from between parked
cars and stops right in front of you. You can avoid these
problems by braking — if you can stop in time. But
sometimes you cannot; there is not room. That is the
time for evasive action — steering around the problem.
Your vehicle can perform very well in emergencies like
these. First apply the brakes. SeeBraking on page 4-3.
It is better to remove as much speed as you can from a
possible collision. Then steer around the problem, to the
left or right depending on the space available.An emergency like this requires close attention and a
quick decision. If you are holding the steering wheel
at the recommended 9 and 3 o’clock positions, you can
turn it a full 180 degrees very quickly without removing
either hand. But you have to act fast, steer quickly, and
just as quickly straighten the wheel once you have
avoided the object.
The fact that such emergency situations are always
possible is a good reason to practice defensive driving
at all times and wear safety belts properly.
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