2005 CADILLAC STS four wheel drive

While using the DSC feature the vehicle will have rmer
shifting and increased performance. You can use this
for sport driving or when climbing hills to stay in
gear longer or to down shift for more power or engine
braking.
The transmission will only allow you to shift into gears
appropriate for the vehicle speed and rpm. The
transmission will not automatically shift to the next
higher gear if the engine rpm is too high.
All-Wheel Drive
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.
Parking Brake
The parking brake pedal
is located on the lower
portion of the instrument
panel to the left of the
steering wheel.
This vehicle has a push-to-release parking brake pedal.
To set the parking brake, hold the regular brake
pedal down with your right foot and push the parking
brake pedal down with your left foot.
If the ignition is on, the brake system warning light on
the instrument panel cluster should come on. If it
does not, you need to have your vehicle serviced. See
Brake System Warning Light on page 3-64for more
information.
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DIC Controls 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.
DIC Buttons (Base Level)
If your vehicle does not
have a Head-Up Display
(HUD), these are the
buttons for your DIC.
«4ª(Information):Press the top or bottom of this
button to scroll through the available vehicle information
displays which include fuel range, fuel economy, fuel
used, average speed, timer, battery voltage, tire pressure
(if equipped with a tire pressure monitor), engine oil life
(if equipped) and digital speed display (if equipped).
See “MPH (km)” later in this section for more information
on the digital speed display.
AB
300 (Trip Information):Press the top of this
button to scroll through the odometer, trip odometer A
and trip odometer B. Press and hold the bottom of
this button to reset each trip odometer back to zero.
4// (Reset):Press this button to reset certain DIC
features and to acknowledge DIC warning messages
and clear them from the DIC display.
EM (English/Metric):Press this button to change the
display from English to metric.
3-74

PERSONAL SETTINGS MENU
This item turns the entire list of personalization features
on or off. This item allows you to program certain
features to a preferred setting for up to two people. The
number of available features varies depending upon
which options are purchased. When this item is
on, a check mark will appear after it. For more
information on the PERSONAL SETTINGS MENU item,
seeVehicle Personalization on page 2-47.
DRIVER SELECTION
When you select this item, the following submenu
appears:
DRIVER 1
DRIVER 2
RECALL DRIVER SETTINGS
STORE DRIVER SETTINGS
For more information on the DRIVER SELECTION
submenu item, see “Recalling Driver Settings”
and “Storing Driver Settings” underMemory Seat,
Mirrors and Steering Wheel on page 2-65.
DRIVER EXIT SETTINGS
When you select this item, the following submenu
appears:
RECALL EXIT SETTINGS
STORE EXIT SETTINGSFor more information on the DRIVER EXIT SETTINGS
submenu item, see “Recalling Exit Settings” and
“Storing Exit Settings” underMemory Seat, Mirrors and
Steering Wheel on page 2-65.
CONFIGURE DISPLAY KEYS
(Base Audio System)
This item allows you to customize the functions of the
four congurable keys located to the left and right of the
audio display. See “Congurable Radio Display Keys”
underRadio with CD on page 3-94for programming
information.
Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identication Number
(VIN). If the radio is moved to a different vehicle, it
will not operate. If the radio is removed from your
vehicle, the original VIN in the radio can be used to
trace the radio back to your vehicle.
With THEFTLOCK
®activated, the radio will not
operate if stolen.
3-115

Here are some important things to consider before you
do recreational vehicle towing:
What is the towing capacity of the towing vehicle?
Be sure you read the tow vehicle manufacturer’s
recommendations.
How far will you tow? Some vehicles have
restrictions on how far and how long they can tow.
Do you have the proper towing equipment?
See your dealer or trailering professional for
additional advice and equipment recommendations.
Is your vehicle ready to be towed? Just as you
would prepare your vehicle for a long trip, you
will want to make sure your vehicle is prepared to
be towed. SeeBefore Leaving on a Long Trip
on page 4-22.
Dinghy Towing
Notice:If you tow your vehicle with all four wheels
on the ground, the drivetrain components could
be damaged. The repairs would not be covered by
your warranty. Do not tow your vehicle with all
four wheels on the ground.
Your vehicle was not designed to be towed with all four
wheels on the ground. If your vehicle must be towed,
you should use a dolly. SeeDolly Towinglater in
this section for more information.
Dolly Towing
If your vehicle is a rear-wheel drive, it can be towed
using a dolly. If you have an All-Wheel Drive (AWD)
vehicle, it can only be towed on a at-bed trailer.
4-36

Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal asher and/or extra wiring. Check
with your dealer. The arrows on your instrument
panel will ash whenever you signal a turn or lane
change. Properly hooked up, the trailer lamps will also
ash, telling other drivers you are about to turn,
change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It
is important to check occasionally to be sure the trailer
bulbs are still working.
Driving on Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you do not shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
Climbing grades steeper than four percent at
temperatures above 90° F (32° C) with a loaded vehicle
and trailer is not recommended. The cooling system
may temporarily overheat. SeeEngine Overheating
on page 5-24.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here is
how to do it:
1. Apply your regular brakes, but do not shift into
PARK (P). When parking uphill, turn the wheels
away from the curb. When parking downhill, turn
the wheels into the curb.
2. Have someone place chocks behind the trailer
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) rmly and apply your parking brake.
5. Release the regular brakes.
4-42

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make a
high-pitched warning sound when the brake pads are
worn and new pads are needed. The sound may come
and go or be heard all the time your vehicle is moving,
except when you are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
Brake linings should always be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.
5-36

Winter Tires
If you expect to drive on snow or ice covered roads
often, you may want to get winter tires for your vehicle.
All season tires provide good overall performance on
most surfaces but they may not offer the traction
you would like or the same level of performance as
winter tires on snow or ice covered roads.
See your dealer for details regarding winter tire
availability and proper tire selection. Also, seeBuying
New Tires on page 5-68
If you choose to use winter tires:
Use tires of the same brand and tread type on all
four wheel positions.
Use only radial ply tires of the same size, load
range, and speed rating as the original equipment
tires.
Winter tires with the same speed rating as your original
equipment tires may not be available for H, V, W
and ZR speed rated tires. If you choose winter tires with
a lower speed rating, never exceed the tire’s maximum
speed capability.
Tire Sidewall Labelling
Useful information about a tire is molded into its
sidewall. The examples below show a typical passenger
vehicle tire and a compact spare tire sidewall.
(A) Tire Size:The tire size is a combination of letters
and numbers used to dene a particular tire’s width,
height, aspect ratio, construction type and service
description. See the “Tire Size” illustration later in this
section for more detail.Passenger (P-Metric) Tire Example
5-54

TPM Sensor Identication Codes
Each TPM sensor has a unique identication code. Any
time you replace one or more of the TPM sensors or
rotate your vehicle’s tires, the identication codes
will need to be matched to the new tire/wheel position.
The sensors are matched, to the tire/wheel positions,
in the following order: left front (LF), right front (RF), right
rear (RR), and left rear (LR) using a TPM diagnostic
tool. See your GM dealer for service.
The TPM sensors may also be matched to each
tire/wheel position by increasing or decreasing the tire’s
air pressure. If using this method to match TPM
sensors, the complete procedure outlined below must
be performed after the vehicle has been driven at
least 20 mph (32 km/h), for at least 10 seconds, and
within 15 minutes from when the vehicle is stationary.
You will have one minute to match the rst tire/wheel
position, and ve minutes overall, to match all four
tire/wheel positions. If it takes longer than one minute,
to match the rst tire and wheel, or more than ve
minutes to match all four tire/wheel positions the
matching process stops and you will need to start over.
The TPM matching process is outlined below:
1. Set the parking brake.
2. Press the push-button ignition switch to OFF/ACC.
3. Using the Keyless Access transmitter, lock and
unlock the vehicle’s doors.4. Press the lock and unlock buttons, at the same
time, on the Keyless Access transmitter. A single
horn chirp will sound, indicating that the TPM
system is ready, and the sensor matching process
can begin.
5. Start with the left (driver’s side) front tire.
6. Remove the valve cap from the valve stem.
Activate the TPM sensor by increasing or
decreasing the tire’s air pressure for ve seconds,
or until a horn chirp sounds. The horn chirp,
which may take up to 30 seconds, conrms that the
sensor identication code has been matched to
this tire position. To decrease the tire’s air-pressure
use the pointed end of the valve cap, a pencil-style
air pressure gauge, or a key.
7. Proceed to the right (passenger’s side) front tire,
and repeat the procedure in Step 6.
8. Proceed to the right (passenger’s side) rear tire,
and repeat the procedure in Step 6.
9. Proceed to the left (driver’s side) rear tire, and
repeat the procedure in Step 6.
10. After hearing the conrming double horn chirp, for
the left rear tire, exit the matching process by
pressing the push-button ignition switch to
OFF/ACC.
5-64