
Black plate (26,1)Cadillac STS Owner Manual - 2011
Highway Exit Ramps
{WARNING:
Adaptive Cruise Control may lose track of the
vehicle ahead and accelerate up to your set
speed while entering or on highway exit ramps.
You could be startled by this acceleration and
even lose control of the vehicle. Disengage
Adaptive Cruise Control before entering a
highway exit ramp. Do not use Adaptive Cruise
Control while entering or on exit ramps.
Other Vehicle Lane Changes
If another vehicle enters the same lane as you,
Adaptive Cruise Control will not detect the vehicle until
it is completely in the lane. Be ready to take action and
apply the brakes yourself.
Using Adaptive Cruise Controls on Hills
and When Towing a Trailer
How well Adaptive Cruise Control works on hills
and while a trailer is being towed depends on your
vehicle speed, vehicle load, traffic conditions, and the
steepness of the hills. It might not detect a vehicle in
your lane while driving on hills. While going up steep
hills, you might want to use the accelerator pedal to
maintain your vehicle speed. While going downhill and
towing a trailer, you might might have to brake to keep
the vehicle speed down. When the brakes are applied
the cruise control is disengaged. You may choose not to
use Adaptive Cruise Control on steep hills when towing
a trailer.
Disengaging Adaptive Cruise Control
Apply the brake pedal or move the Adaptive Cruise
Control switch to off, to disengage the system. Adaptive
Cruise Control information does not appear on the HUD
while the system is not engaged.
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Black plate (37,1)Cadillac STS Owner Manual - 2011
speed. For more battery saving information, see
“Battery Saver Active Message”underDIC Warnings
and Messages on page 4‑76.
Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery's temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery's state of charge is low, the voltage is
raised slightly to quickly bring the charge back up.
When the state of charge is high, the voltage is lowered
slightly to prevent overcharging. If the vehicle has a
voltmeter gauge or a voltage display on the Driver
Information Center (DIC), you may see the voltage
move up or down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be spinning
fast enough at idle to produce all the power that is
needed for very high electrical loads.
A high electrical load occurs when several of the
following are on, such as: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at high
speed, heated seats, engine cooling fans, trailer loads,
and loads plugged into accessory power outlets. EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator's output
and the vehicle's electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands
of some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as BATTERY SAVER ACTIVE
or BATTERY VOLTAGE LOW. If this message is
displayed, it is recommended that the driver reduce the
electrical loads as much as possible. See
DIC Warnings
and Messages on page 4‑76.
Inadvertent Power Battery Saver
This feature is designed to protect the vehicle's battery
against drainage from the interior lamps, trunk lamp,
glove box lamp, or the garage door opener. When the
ignition is turned off, the power to these features will
automatically turn off after 10 minutes (three minutes if a
new car has 24 km (15 miles) or less). Power will be
restored for an additional 10 minutes if any door is
opened, the trunk is opened or the courtesy lamp switch
is turned on.
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Black plate (63,1)Cadillac STS Owner Manual - 2011
This light should come on
when the ignition is on,
but the engine is not
running, as a check to
show it is working. If it
does not, have the vehicle
serviced by your dealer.
If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light can
prevent more serious damage to the vehicle. This
system assists the service technician in correctly
diagnosing any malfunction.
Notice: If the vehicle is continually driven with this
light on, after a while, the emission controls might
not work as well, the vehicle fuel economy might
not be as good, and the engine might not run as
smoothly. This could lead to costly repairs that
might not be covered by the vehicle warranty. Notice:
Modifications made to the engine,
transmission, exhaust, intake, or fuel system of the
vehicle or the replacement of the original tires with
other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle's emission
controls and can cause this light to come on.
Modifications to these systems could lead to costly
repairs not covered by the vehicle warranty. This
could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 6‑4.
This light comes on during a malfunction in one of
two ways:
Light Flashing: A misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
To prevent more serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the amount of cargo
being hauled as soon as it is possible.
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Black plate (1,1)Cadillac STS Owner Manual - 2011
Section 5 Driving Your Vehicle
Your Driving, the Road, and the Vehicle. . . . . . . . . .5-2
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Drunk Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . . . . 5-5
Braking in Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
StabiliTrak
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Enhanced StabiliTrak®. . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Traction Control System (TCS) . . . . . . . . . . . . . . . . . . 5-9
Limited-Slip Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
All-Wheel Drive (AWD) System . . . . . . . . . . . . . . . . 5-11
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Passing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Driving at Night . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Driving in Rain and on Wet Roads . . . . . . . . . . . . . 5-16
Before Leaving on a Long Trip . . . . . . . . . . . . . . . . . 5-18
Highway Hypnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . 5-19
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
If Your Vehicle is Stuck in Sand, Mud, Ice,
or Snow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Rocking Your Vehicle to Get It Out . . . . . . . . . . . . . 5-23
Loading the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
Towing Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . 5-29
Towing a Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
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Black plate (25,1)Cadillac STS Owner Manual - 2011
Steps for Determining Correct
Load Limit
1.Locate the statement“The combined weight
of occupants and cargo should never exceed
XXX kg or XXX lbs” on your vehicle's placard.
2.Determine the combined weight of the driver
and passengers that will be riding in your
vehicle.
3.Subtract the combined weight of the driver
and passengers from XXX kg or XXX lbs.
4.The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the“XXX”amount equals
1400 lbs and there will be five 150 lb
passengers in your vehicle, the amount of
available cargo and luggage load capacity is
650 lbs (1400 −750 (5 x 150) = 650 lbs).
5.Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available
cargo and luggage load capacity calculated in
Step 4.
6.If your vehicle will be towing a trailer, the load
from your trailer will be transferred to your
vehicle. Consult this manual to determine
how this reduces the available cargo and
luggage load capacity of your vehicle.
See Towing a Trailer
on page 5‑31for
important information on towing a trailer,
towing safety rules and trailering tips.
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Black plate (29,1)Cadillac STS Owner Manual - 2011
WARNING: (Continued)
.When you carry something inside the
vehicle, secure it whenever you can.
.Do not leave a seat folded down unless
you need to.
Towing
Towing Your Vehicle
Notice:To avoid damage, the disabled vehicle
should be towed with all four wheels off the ground.
Care must be taken with vehicles that have low
ground clearance and/or special equipment.
Consult your dealer or a professional towing service if
the disabled vehicle must be towed. See Roadside
Service on page 8‑8.
To tow the vehicle behind another vehicle for
recreational purposes, such as behind a motorhome,
see “Recreational Vehicle Towing” following.
Recreational Vehicle Towing
Recreational vehicle towing means towing the vehicle
behind another vehicle–such as behind a motorhome.
The two most common types of recreational vehicle
towing are known as “dinghy towing” —towing the
vehicle with all four wheels on the ground, and “dolly
towing” — towing the vehicle with two wheels on the
ground and two wheels up on a device known as a
“dolly”.
Here are some important things to consider before
recreational vehicle towing:
.What is the towing capacity of the towing vehicle?
Be sure to read the tow vehicle manufacturer's
recommendations.
.What is the distance that will be travelled? Some
vehicles have restrictions on how far and how long
they can tow.
.Is the proper towing equipment going to be used?
See your dealer or trailering professional for
additional advice and equipment
recommendations.
.Is the vehicle ready to be towed? Just as preparing
the vehicle for a long trip, make sure the vehicle is
prepared to be towed. See Before Leaving on a
Long Trip on page 5‑18.
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Black plate (30,1)Cadillac STS Owner Manual - 2011
Dinghy Towing
Notice:If the vehicle is towed with all four wheels
on the ground, the drivetrain components could be
damaged. The repairs would not be covered by the
vehicle warranty. Do not tow the vehicle with all four
wheels on the ground.
The vehicle was not designed to be towed with all four
wheels on the ground. If the vehicle must be towed, use
a dolly. See “Dolly Towing” later in this section for more
information.
Dolly Towing
(Rear‐Wheel‐Drive Vehicles)
Notice: Dolly towing or dinghy towing the vehicle
may cause damage because of reduced ground
clearance. Always tow the vehicle using the towing
procedures listed in this section or put the vehicle
on a flatbed truck or trailer.
Rear‐wheel drive vehicles can be towed using a dolly.
To tow the vehicle using a dolly, follow these steps:
1. Attach the dolly to the tow vehicle following the dolly manufacturer's instructions.
2. Drive the rear wheels onto the dolly.
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Black plate (31,1)Cadillac STS Owner Manual - 2011
3. Firmly set the parking brake. SeeParking Brakeon page 3‑33.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly following the manufacturer's instructions.
6. Use an adequate clamping device designed for towing to ensure that the front wheels are locked
into the straight position.
7. Turn the ignition to LOCK/OFF.
Dolly Towing (All‐Wheel‐Drive Vehicles)
Notice: Towing an all-wheel-drive vehicle with all
four wheels on the ground, or even with only two of
its wheels on the ground, will damage drivetrain
components. Do not tow an all-wheel-drive vehicle
with any of its wheels on the ground.
All‐Wheel Drive (AWD) vehicles can only be towed on a
flat‐bed truck or trailer.
Towing a Trailer
{WARNING:
The driver can lose control when pulling a trailer if
the correct equipment is not used or the vehicle is
not driven properly. For example, if the trailer is
too heavy, the brakes may not work well —or
even at all. The driver and passengers could be
seriously injured. The vehicle may also be
damaged; the resulting repairs would not be
covered by the vehicle warranty. Pull a trailer only
if all the steps in this section have been followed.
Ask your dealer for advice and information about
towing a trailer with the vehicle.
To identify the trailering capacity of the vehicle, read the
information in “Weight of the Trailer” that appears later
in this section.
5-31