2010 CADILLAC DTS engine

The TCS/StabiliTrak warning light on the instrumentpanel cluster will flash when the system is operating.SeeTraction Control System (TCS) Warning Lighton page 4-54andStabiliTrak®Indicator Light onpage 4-54for more information. The system may beheard or felt while it is working. This is normal.
The SERVICE STABILITRAK message is displayed andthe TCS/StabiliTrak warning light on the instrumentpanel cluster comes on if there is a problem with thesystem. When this light and the SERVICESTABILITRAK message are on, the system is notworking. Adjust your driving accordingly.
Traction Control System (TCS)
The vehicle has a Traction Control System (TCS) thatlimits wheel spin. This is especially useful in slippery roadconditions. The system operates only if it senses that thefront wheels are spinning too much or beginning to losetraction. When this happens, the system works the frontbrakes and reduces engine power (by closing the throttleand managing engine spark) to limit wheel spin.
The TCS and StabiliTrak®
light will flash when thesystem is limitingwheel spin.
The system may be heard or felt while it is working, butthis is normal. SeeTraction Control System (TCS)Warning Light on page 4-54for more information.
If the vehicle is in cruise control when TCS begins tolimit wheel spin, the cruise control will automaticallydisengage. The cruise control may be re-engaged whenroad conditions allow. SeeCruise Control on page 4-12.
The SERVICE TRACTION CONTROL message inthe DIC and the TCS/StabiliTrak warning light comes onif there is a problem with the traction control system.SeeDIC Warnings and Messages on page 4-67.
When this light and the SERVICE TRACTIONCONTROL message are on, the system will not limitwheel spin. Adjust your driving accordingly.
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To turn the system off oron, press and release thisbutton located in frontof the shift lever.
TCS automatically comes on whenever the vehicle isstarted. To limit wheel spin, especially in slipperyroad 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 bypressing the TCS button. The DIC will displayTRACTION 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 willnot be able to use the engine speed managementsystem. System noises may be heard as a result of thebrake-traction control working. If the controller detectsexcessive wheel spin in this mode, the TCS/StabiliTraklight may blink.
It is recommended to leave the system on for normaldriving conditions, but it may be necessary to turnthe system off if the vehicle is stuck in sand, mud, ice orsnow, and you want to “rock” the vehicle to attempt tofree it. SeeIf Your Vehicle is Stuck in Sand, Mud, Ice, orSnow on page 5-17.
Adding non-dealer/non-retailer accessories can affectthe vehicle’s performance. SeeAccessories andModifications on page 6-3for more information.
Magnetic Ride Control™
The vehicle may have Magnetic Ride Control thatautomatically adjusts the ride of the vehicle. Thecontroller receives input from the system to determinethe proper ride. If the controller detects a problem withinthe system, the Driver Information Center (DIC)displays a SERVICE SUSPENSION SYS message.SeeDIC Warnings and Messages on page 4-67for more information. If this message appears, have thevehicle serviced at your dealer/retailer.
Electronically Controlled Air Ride
Suspension
Professional Vehicles may have Electronically ControlledAir Suspension. The air ride controller receives inputfrom the system to determine the proper ride. Ifthe controller detects a problem with the system, theDIC will display a SERVICE SUSPENSION SYSmessage. If this message appears, have the vehicleserviced at your dealer/retailer.
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Steering
Power Steering
If power steering assist is lost because the engine stopsor the system is not functioning, the vehicle can besteered but it will take more effort.
Magnetic Speed Variable Assist
Steering System
This system continuously adjusts the effort felt whensteering at all vehicle speeds. It provides easewhen 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 tiresand the road surface, the angle at which the curve isbanked, and vehicle speed. While in a curve, speed isthe one factor that can be controlled.
If there is a need to reduce speed, do it before enteringthe curve, while the front wheels are straight.
Try to adjust the speed so you can drive through thecurve. Maintain a reasonable, steady speed. Waitto accelerate until out of the curve, and then accelerategently into the straightaway.
Steering in Emergencies
There are times when steering can be more effectivethan braking. For example, you come over a hill and finda truck stopped in your lane, or a car suddenly pullsout from nowhere, or a child darts out from betweenparked cars and stops right in front of you. Theseproblems can be avoided by braking — if you can stopin time. But sometimes you cannot stop in timebecause there is no room. That is the time for evasiveaction — steering around the problem.
The vehicle can perform very well in emergencies likethese. First apply the brakes. SeeBraking on page 5-3.It is better to remove as much speed as possiblefrom a collision. Then steer around the problem, to theleft or right depending on the space available.
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Before Leaving on a Long Trip
To prepare your vehicle for a long trip, consider havingit serviced by your dealer/retailer 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?
Highway Hypnosis
Always be alert and pay attention to your surroundingswhile driving. If you become tired or sleepy, find asafe 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.
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Hill and Mountain Roads
Driving on steep hills or through mountains is differentthan driving on flat or rolling terrain. Tips for drivingin 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.
•Stay in your own lane. Do not swing wide or cut
across the center of the road. Drive at speedsthat let you stay in your own lane.
•Top of hills: Be alert — something could be in your
lane (stalled car, accident).
•Pay attention to special road signs (falling rocks
area, winding roads, long grades, passing orno-passing zones) and take appropriate action.
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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 theHazard Warning Flashers on 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 blockingthe exhaust pipe.
•Check again from time to time to be sure
snow does not collect there.
WARNING: (Continued)
WARNING: (Continued)
•Open a window about 5 cm (two inches) on
the side of the vehicle that is away from thewind 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 andset the fan speed to the highest setting.See Climate Control System in the Index.
For more information about carbon monoxide, seeEngine Exhaust on page 3-34.
Snow can trap exhaust gases under your vehicle.This can cause deadly CO (carbon monoxide) gasto get inside. CO could overcome you and kill you.You cannot see it or smell it, so you might notknow it is in your vehicle. Clear away snow fromaround the base of your vehicle, especially anythat is blocking the exhaust.
To save fuel, run the engine for only short periods asneeded to warm the vehicle and then shut the engine offand close the window most of the way to save heat.
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Repeat this until help arrives but only when you feelreally uncomfortable from the cold. Moving aboutto keep warm also helps.
If it takes some time for help to arrive, now and thenwhen you run the engine, push the acceleratorpedal slightly so the engine runs faster than the idlespeed. This keeps the battery charged to restartthe vehicle and to signal for help with the headlamps.Do this as little as possible to save fuel.
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free thevehicle when stuck in sand, mud, ice, or snow. SeeRocking Your Vehicle to Get It Out on page 5-17.
If the vehicle has a traction system, it can often help tofree a stuck vehicle. Refer to the vehicle’s tractionsystem in the Index. If stuck too severely for the tractionsystem to free the vehicle, turn the traction system offand use the rocking method.
{WARNING:
If the vehicle’s tires spin at high speed, they can
explode, and you or others could be injured.
The vehicle can overheat, causing an engine
compartment fire or other damage. Spin the
wheels as little as possible and avoid going above
55 km/h (35 mph) as shown on the speedometer.
For information about using tire chains on the vehicle,seeTire Chains on page 6-70.
Rocking Your Vehicle to Get It Out
Turn the steering wheel left and right to clear the areaaround the front wheels. Turn off any traction or stabilitysystem. Shift back and forth between R (Reverse) and aforward gear, spinning the wheels as little as possible.To prevent transmission wear, wait until the wheels stopspinning before shifting gears. Release the acceleratorpedal while shifting, and press lightly on the acceleratorpedal when the transmission is in gear. Slowly spinningthe wheels in the forward and reverse directions causes arocking motion that could free the vehicle. If that does notget the vehicle out after a few tries, it might need to betowed out. If the vehicle does need to be towed out, seeTowing Your Vehicle on page 5-24.
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Towing a Trailer
The Cadillac Professional Vehicle cannot tow 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/retailer for advice and information
about towing a trailer with the vehicle.
Notice:Pulling a trailer improperly can damage thevehicle and result in costly repairs not coveredby the vehicle warranty. To pull a trailer correctly,follow the advice in this section and see yourdealer/retailer for important information abouttowing a trailer with the vehicle.
The vehicle can tow a trailer if it is equipped with theproper trailer towing equipment. To identify the traileringcapacity of the vehicle, read the information in “Weightof the Trailer” that appears later in this section. Traileringis different than just driving the vehicle by itself.Trailering means changes in handling, acceleration,braking, durability and fuel economy. Successful, safetrailering takes correct equipment, and it has to beused properly.
The following information has many time-tested,important trailering tips and safety rules. Many of theseare important for the safety of the driver and thepassengers. So please read this section carefully beforepulling a trailer.
Load-pulling components such as the engine,transmission, axles, wheel assemblies and tires areforced to work harder against the drag of the addedweight. The engine is required to operate at relativelyhigher speeds and under greater loads, generating extraheat. The trailer also adds considerably to windresistance, increasing the pulling requirements.
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