engine CADILLAC DTS 2011 1.G Workshop Manual

Black plate (74,1)Cadillac DTS Owner Manual - 2011
SERVICE SUSPENSION SYS (System)
This message displays when the magnetic ride control
or automatic leveling control system is not operating
properly. Have your vehicle serviced by your dealer.
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with the
theft-deterrent system programmed in the key. A fault
has been detected in the system which means that the
system is disabled and it is not protecting the vehicle.
The vehicle usually restarts; however, you may want to
take the vehicle to your dealer before turning off the
engine. SeePASS-Key
®III+ Electronic Immobilizer
Operationon page 3‑20for more information.
SERVICE TIRE MONITOR SYSTEM
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays if a part on the TPMS
is not working properly. The tire pressure light also
flashes and then remains on during the same ignition
cycle. See Tire Pressure Light
on page 4‑54. Several
conditions may cause this message to appear. See Tire
Pressure Monitor Operation
on page 6‑61for more
information. If the warning comes on and stays on,
there may be a problem with the TPMS, see your
dealer.
SERVICE TRACTION CONTROL
This message displays when there is a problem with the
Traction Control System (TCS). When this message is
displayed, the system will not limit wheel spin. Adjust
your driving accordingly. See your dealer for service.
See Traction Control System (TCS)
on page 5‑6for
more information.
SERVICE TRANSMISSION
This message displays when there is a problem with the
vehicle's transmission. Have your vehicle serviced by
your dealer.
SERVICE VEHICLE SOON
This message displays when a non-emissions related
malfunction occurs. Have your vehicle serviced by your
dealer as soon as possible.
SET SPD (Speed)
If your vehicle has Adaptive Cruise Control (ACC), this
message displays whenever the cruise control is set.
First, the “CRUISE SET TO XXX MPH (km/h)” message
appears. After a few seconds, the “CRUISE SET TO
XXX MPH (km/h)” message clears and the message
“SET SPD XX” displays at the bottom of the DIC. See
“CRUISE SET TO XXX MPH (km/h)” earlier in this
section and Adaptive Cruise Control
on page 4‑14for
more information.
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Black plate (76,1)Cadillac DTS Owner Manual - 2011
THEFT ATTEMPTED
This symbol appears with
this message.
This message displays if the content theft-deterrent
system has detected a break-in attempt while you were
away from your vehicle. See Content Theft-Deterrent
on
page 3‑19for more information.
TIGHTEN GAS CAP
This message displays when the fuel cap has not been
fully tightened. Recheck the fuel cap to ensure that it is
on and tightened properly.
TIRE LEARNING ACTIVE
This message displays when the Tire Pressure Monitor
System (TPMS) is re-learning the tire positions on your
vehicle. The tire positions must be re-learned after
rotating the tires or after replacing a tire or sensor. See
Tire Inspection and Rotation
on page 6‑65,
Tire Pressure Monitor Systemon page 6‑60, and
Inflation - Tire Pressureon page 6‑57for more
information.
TRACTION CONTROL OFF
This message displays when the Traction Control
System (TCS) is turned off. Adjust your driving
accordingly. See Traction Control System (TCS)
on
page 5‑6for more information.
TRACTION CONTROL ON
This message displays when the Traction Control
System (TCS) is turned on. See Traction Control
System (TCS)
on page 5‑6for more information.
TRANSMISSION HOT IDLE ENGINE
Notice: If you drive the vehicle while the
transmission fluid is overheating and the
transmission temperature warning is displayed
on the instrument panel cluster and/or DIC, you
can damage the transmission. This could lead to
costly repairs that would not be covered by the
warranty. Do not drive your vehicle with overheated
transmission fluid or while the transmission
temperature warning is displayed.
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Black plate (87,1)Cadillac DTS Owner Manual - 2011
Notice:Contact your dealer before adding any
equipment.
Adding audio or communication equipment could
interfere with the operation of the vehicle's engine,
radio, or other systems, and could damage them.
Follow federal rules covering mobile radio and
telephone equipment.
The vehicle has Retained Accessory Power (RAP). With
RAP, the audio system can be played even after the
ignition is turned off. See Retained Accessory Power
(RAP)
on page 3‑24for more information.
Setting the Clock
Radio with a Single CD or a Six-Disc
CD Player
The vehicle has an analog clock as well as the digital
radio clock. At the time of new vehicle delivery, the
digital radio clock display should be disabled. If you
decide to use the digital radio clock as well as the
analog clock, you can change the setting to enable the
radio clock display.
Enabling/Disabling the Digital Radio
Clock
For the Single CD Player
To turn the radio clock display on or off:
1. Turn the radio on.
2. Press the
Hbutton until the clock and date setting
menus appear.
3. Press the pushbutton located under the forward arrow tab until the menu for default clock and date
settings appear.
4. Press the pushbutton located under the currently displayed status of either ON or OFF. The ON
display indicates the radio clock display is disabled
and the OFF display indicates the radio clock
display is enabled. Press this pushbutton to toggle
the radio clock display on or off.
If the radio clock display is turned on, the screen
displays Radio Clock ON for 10 seconds, then
returns to the original clock display menu.
If the radio clock display is turned off, the screen
displays Radio Clock OFF for 10 seconds. The
menus for clock and date settings are removed,
and ON displays as a current status indicating that
the clock display can be turned on, if desired.
4-87

Black plate (4,1)Cadillac DTS Owner Manual - 2011
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.
The brakes might not have time to cool between hard
stops. The brakes will wear out much faster with a lot
of heavy braking. Keeping pace with the traffic and
allowing realistic following distances eliminates a lot of
unnecessary braking. That means better braking and
longer brake life.
If the engine ever stops while the vehicle is being
driven, brake normally but do not pump the brakes.
If the brakes are pumped, the pedal could get harder to
push down. If the engine stops, there will still be some
power brake assist but it will be used when the brake is
applied. Once the power assist is used up, it can take
longer to stop and the brake pedal will be harder
to push.
Adding non‐dealer accessories can affect vehicle
performance. SeeAccessories and Modifications
on
page 6‑3.
Antilock Brake System (ABS)
This vehicle has the Antilock Brake System (ABS), an
advanced electronic braking system that helps prevent
a braking skid.
When the engine is started and the vehicle begins to
drive away, ABS checks itself. A momentary motor or
clicking noise might be heard while this test is going on,
and it might even be noticed that the brake pedal
moves a little. This is normal.
If there is a problem with
ABS, this warning light
stays on. See Antilock
Brake System (ABS)
Warning Light
on
page 4‑51.
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 the wheels are slowing
down. If one of the wheels is about to stop rolling, the
computer will separately work the brakes at each front
wheel and at both rear wheels.
5-4

Black plate (6,1)Cadillac DTS Owner Manual - 2011
StabiliTrak®System
The vehicle may have the StabiliTrak system which
combines antilock brake, traction and stability control
systems and helps the driver maintain directional
control of the vehicle in most driving conditions. This is
accomplished by selectively applying any one of the
vehicle's brakes and reducing engine power.
The StabiliTrak system comes on automatically
whenever the vehicle is started. The system cannot be
turned off.
This light will flash when
the system is operating.
The STABILITRAK NOT READY message may be
displayed in the Driver Information Center (DIC) and the
Traction Control System (TCS)/StabiliTrak warning light
on the instrument panel cluster comes on after first
driving the vehicle and exceeding 19 mph (30 km/h) for
30 seconds. The StabiliTrak system is off until the light
has turned off. This could take up to 15 minutes. The TCS/StabiliTrak warning light on the instrument
panel cluster will flash when the system is operating.
See
Traction Control System (TCS) Warning Light
on
page 4‑51and StabiliTrak®Indicator Lighton
page 4‑52for more information. The system may be
heard or felt while it is working. This is normal.
The SERVICE STABILITRAK message is displayed
and the TCS/StabiliTrak warning light on the instrument
panel cluster comes on if there is a problem with
the system. When this light and the SERVICE
STABILITRAK message are on, the system is not
working. Adjust your driving accordingly.
Traction Control System (TCS)
The vehicle has a Traction Control System (TCS) that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that the front wheels are spinning too much or
beginning to lose traction. When this happens, the
system works the front brakes and reduces engine
power (by closing the throttle and managing engine
spark) to limit wheel spin.
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Black plate (7,1)Cadillac DTS Owner Manual - 2011
The TCS and StabiliTrak®
light will flash when the
system is limiting
wheel spin.
The system may be heard or felt while it is working, but
this is normal. See Traction Control System (TCS)
Warning Light
on page 4‑51for more information.
If the vehicle is in cruise control when TCS begins to
limit wheel spin, the cruise control will automatically
disengage. The cruise control may be re-engaged when
road conditions allow. See Cruise Control on page 4‑12.
The SERVICE TRACTION CONTROL message in the
DIC and the TCS/StabiliTrak warning light comes on if
there is a problem with the traction control system. See
DIC Warnings and Messages on page 4‑65.
When this light and the SERVICE TRACTION
CONTROL message are on, the system will not limit
wheel spin. Adjust your driving accordingly.
To turn the system off or
on, press and release this
button located in front of
the shift lever.
TCS automatically comes on whenever the vehicle is
started. To limit wheel spin, especially in slippery road
conditions, always leave the system turned on. TCS
can be turned off if needed.
The system can be turned on or off at any time by
pressing the TCS button. The DIC will display
TRACTION CONTROL OFF when the button is
pressed, and part of the traction control system is
disabled. The vehicle will still have brake-traction
control, but will not be able to use the engine speed
management system. System noises may be heard as
a result of the brake-traction control working. If the
controller detects excessive wheel spin in this mode,
the TCS/StabiliTrak light may blink.
It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn the
system off if the vehicle is stuck in sand, mud, ice or
snow, and you want to “rock”the vehicle to attempt to
free it. See If Your Vehicle is Stuck in Sand, Mud, Ice,
or Snow on page 5‑17.
5-7

Black plate (8,1)Cadillac DTS Owner Manual - 2011
Adding non‐dealer accessories can affect the vehicle's
performance. SeeAccessories and Modificationson
page 6‑3for more information.
Magnetic Ride Control™
The vehicle may have Magnetic Ride Control that
automatically adjusts the ride of the vehicle. The
controller receives input from the system to determine
the proper ride. If the controller detects a problem within
the system, the Driver Information Center (DIC) displays
a SERVICE SUSPENSION SYS message. See DIC
Warnings and Messages
on page 4‑65for more
information. If this message appears, have the vehicle
serviced at your dealer.
Electronically Controlled Air Ride
Suspension
Professional Vehicles may have Electronically
Controlled Air Suspension. The air ride controller
receives input from the system to determine the proper
ride. If the controller detects a problem with the system,
the DIC will display a SERVICE SUSPENSION SYS
message. If this message appears, have the vehicle
serviced at your dealer.
Steering
Power Steering
If power steering assist is lost because the engine stops
or the system is not functioning, the vehicle can be
steered but it will take more effort.
Magnetic Speed Variable Assist
Steering System
This system continuously adjusts the effort felt when
steering at all vehicle speeds. It provides ease when
parking, yet a firm, solid feel at highway speeds.
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 vehicle speed. While in a curve, speed is
the one factor that can be controlled.
If there is a need to reduce speed, do it before entering
the curve, while the front wheels are straight.
Try to adjust the speed so you can drive through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until out of the curve, and then accelerate
gently into the straightaway.
5-8

Black plate (13,1)Cadillac DTS Owner Manual - 2011
Hydroplaning
Hydroplaning is dangerous. Water can build up under
your vehicle's tires so they actually ride on the water.
This can happen if the road is wet enough and you are
going fast enough. When your vehicle is hydroplaning, it
has little or no contact with the road.
There is no hard and fast rule about hydroplaning. The
best advice is to slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet weather driving tips
include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping equipment in good shape.
.Keep the windshield washer fluid reservoir filled.
.Have good tires with proper tread depth. SeeTireson page 6‑48.
.Turn off cruise control.
Before Leaving on a Long Trip
To prepare your vehicle for a long trip, consider having
it serviced by your dealer before departing.
Things to check on your own include:
.Windshield Washer Fluid:Reservoir full? Windows
clean —inside and outside?
.Wiper Blades: In good shape?
.Fuel, Engine Oil, Other Fluids: All levels checked?
.Lamps:Do they all work and are lenses clean?
.Tires:Are treads good? Are tires inflated to
recommended pressure?
.Weather and Maps: Safe to travel? Have
up-to-date maps?
5-13

Black plate (14,1)Cadillac DTS Owner Manual - 2011
Highway Hypnosis
Always be alert and pay attention to your surroundings
while driving. If you become tired or sleepy, find a safe
place to park your vehicle and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep interior temperature cool.
.Keep your eyes moving—scan the road ahead
and to the sides.
.Check the rearview mirror and vehicle instruments
often.
Hill and Mountain Roads
Driving on steep hills or through mountains is different
than driving on flat or rolling terrain. Tips for driving in
these conditions include:
.Keep the vehicle serviced and in good shape.
.Check all fluid levels and brakes, tires, cooling
system, and transmission.
.Going down steep or long hills, shift to a
lower gear.
{WARNING:
If you do not shift down, the brakes could get so
hot that they would not work well. You would then
have poor braking or even none going down a hill.
You could crash. Shift down to let the engine
assist the brakes on a steep downhill slope.
{WARNING:
Coasting downhill in N (Neutral) or with the
ignition off is dangerous. The brakes will have to
do all the work of slowing down and they could
get so hot that they would not work well. You
would then have poor braking or even none going
down a hill. You could crash. Always have the
engine running and the vehicle in gear when
going downhill.
5-14

Black plate (16,1)Cadillac DTS Owner Manual - 2011
Blizzard Conditions
Being stuck in snow can be in a serious situation. Stay
with the vehicle unless there is help nearby. If possible,
use theRoadside Service
on page 8‑7. To get help
and keep everyone in the vehicle safe:
.Turn on the Hazard Warning Flasherson
page 4‑3.
.Tie a red cloth to an outside mirror.
{WARNING:
Snow can trap engine exhaust under the vehicle.
This may cause exhaust gases to get inside.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in the snow:
.Clear away snow from around the base of
your vehicle, especially any that is blocking
the exhaust pipe.
.Check again from time to time to be sure
snow does not collect there.
(Continued)
WARNING: (Continued)
.Open a window about 5 cm (two inches) on
the side of the vehicle that is away from the
wind to bring in fresh air.
.Fully open the air outlets on or under the
instrument panel.
.Adjust the Climate Control system to a setting
that circulates the air inside the vehicle and
set the fan speed to the highest setting. See
Climate Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 3‑33.
Snow can trap exhaust gases under your vehicle.
This can cause deadly CO (carbon monoxide) gas
to get inside. CO could overcome you and kill you.
You cannot see it or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking the exhaust.
To save fuel, run the engine for only short periods as
needed to warm the vehicle and then shut the engine
off and close the window most of the way to save heat.
5-16