coolant CADILLAC DTS 2009 1.G Owner's Manual

Page 336 of 462

Windshield Washer Fluid
What to Use
When the vehicle needs windshield washer uid, be
sure to read the manufacturer’s instructions before use.
If the vehicle will be operating in an area where the
temperature may fall below freezing, use a uid that has
sufficient protection against freezing.
Adding Washer Fluid
The WASHER FLUID LOW ADD FLUID message will
be displayed on the Driver Information Center (DIC)
when the uid is low. SeeDIC Warnings and Messages
on page 3-73for more information.
Open the cap with the
washer symbol on it.
Add washer uid until the
tank is full. SeeEngine
Compartment Overview on
page 5-12for reservoir
location.Notice:
When using concentrated washer uid, follow the
manufacturer’s instructions for adding water.
Do not mix water with ready-to-use washer uid.
Water can cause the solution to freeze and
damage your washer uid tank and other parts of
the washer system. Also, water does not clean as
well as washer uid.
Fill the washer uid tank only three-quarters
full when it is very cold. This allows for uid
expansion if freezing occurs, which could
damage the tank if it is completely full.
Do not use engine coolant (antifreeze) in your
windshield washer. It can damage the vehicle’s
windshield washer system and paint.
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Tire Terminology and Denitions
Air Pressure:The amount of air inside the
tire pressing outward on each square inch of the
tire. Air pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of a tire’s height
to its width.
Belt
:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be
made from steel or other reinforcing materials.
Bead
:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.Cold Tire Pressure
:The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInflation - Tire Pressure on
page 5-57.
Curb Weight
:The weight of a motor vehicle with
standard and optional equipment including the
maximum capacity of fuel, oil, and coolant, but
without passengers and cargo.
DOT Markings
:A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR
:Gross Vehicle Weight Rating. See
Loading the Vehicle on page 4-19.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading the Vehicle on page 4-19.
GAWR RR
:Gross Axle Weight Rating for the
rear axle. SeeLoading the Vehicle on page 4-19.
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Page 412 of 462

Scheduled Maintenance
To maintain the ride, handling, and performance of
the vehicle, it is important that the rst tire rotation
service be performed when the vehicle has 5,000 to
8,000 miles (8 000 to 13 000 km). Check tires for
ination pressures and wear. SeeTires on page 5-48.
Rotate tires. SeeTire Inspection and Rotation on
page 5-65and “Tire Wear Inspection” inAt Least Once
a Month on page 6-9.
When the CHANGE ENGINE OIL SOON message
displays in the Driver Information Center (DIC), service
is required for the vehicle. Have the vehicle serviced
as soon as possible within the next 600 miles
(1 000 km). It is possible that, if driving under the best
conditions, the engine oil life system may not indicate
that vehicle service is necessary for over a year.
However, the engine oil and lter must be changed at
least once a year and at this time the system must
be reset. Your dealer/retailer has trained service
technicians who will perform this work using genuine
parts and reset the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. SeeEngine Oil Life
System on page 5-16for information on the Engine
Oil Life System and resetting the system.When the CHANGE ENGINE OIL SOON message
appears, the following services, checks, and inspections
are required:
❑Change engine oil and lter. SeeEngine Oil on
page 5-13. Reset oil life system. SeeEngine Oil Life
System on page 5-16.An Emission Control Service.
❑Visually check for any leaks or damage.
See footnote (k).
❑Inspect engine air cleaner lter. If necessary, replace
lter. SeeEngine Air Cleaner/Filter on page 5-17.
See footnote (m).
❑Rotate tires and check ination pressures and wear.
SeeTire Inspection and Rotation on page 5-65and
“Tire Wear Inspection” inAt Least Once a Month on
page 6-9.
❑Inspect brake system.See footnote (a).
❑Check engine coolant and windshield washer uid
levels and add uid as needed.
❑Perform any needed additional services.
See “Additional Required Services” in this section.
❑Inspect suspension and steering components.
See footnote (b).
❑Inspect engine cooling system.See footnote (c).
❑Inspect wiper blades.See footnote (d).
❑Inspect restraint system components.See footnote (e).
❑Lubricate body components.See footnote (f).
❑Check transmission uid level and add uid
as needed.
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Page 416 of 462

(j)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-23
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler neck. Pressure test
the cooling system and pressure cap.
(k)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the fluid level checked. Add fluid if needed.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle
safety, dependability, and emission control performance.
Your dealer/retailer can assist with these checks and
services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-11.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by the vehicle
warranty.
Check the engine oil level and add the proper oil
if necessary. SeeEngine Oil on page 5-13.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-23.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
6-8

Page 419 of 462

Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
To check the parking brake’s holding ability:
With the engine running and the transmission
in N (Neutral), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle
is held by the parking brake only.
To check the P (Park) mechanism’s holding ability:
With the engine running, shift to P (Park). Then
release the parking brake followed by the regular
brake.
Contact your dealer/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care
to clean thoroughly any areas where mud and other
debris can collect.
Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilThe engine requires a special
engine oil meeting GM Standard
GM4718M. Oils meeting this
standard can be identied as
synthetic, and should also be
identied with the American
Petroleum Institute (API) Certied
for Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard.
Look for and use only oil that meets
GM Standard GM4718M. For the
proper viscosity, seeEngine Oil
on page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-23.
6-11

Page 450 of 462

Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-63
Coolant
Engine.......................................................5-23
Engine Temperature Gage............................3-60
Engine Temperature Warning Light.................3-59
Surge Tank Pressure Cap.............................5-27
Cooled Seats................................................... 1-5
Cooling System..............................................5-22
Cornering Lamps............................................3-34
Courtesy Lamps.............................................3-35
Courtesy Transportation...................................7-10
Cruise Control................................................3-16
Cruise Control, Active......................................3-19
Cruise Control, Forward Collision Alert (FCA)
System........................................................ 3-9
Cruise Control Light........................................3-66
Cupholders....................................................2-62
Customer Assistance......................................... 7-6
Offices......................................................... 7-6
Text Telephone (TTY) Users........................... 7-6
Customer Information
Service Publications Ordering Information........7-16
Customer Satisfaction Procedure........................ 7-2D
Damage Repair, Collision.................................7-12
Data Recorders
Event.........................................................7-18
Daytime Running Lamps (DRL).........................3-33
Defensive Driving............................................. 4-2
Disc, MP3....................................................3-110
Doing Your Own Service Work........................... 5-4
Door
Central Door Unlocking System.....................2-11
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-12
Driver Information Center (DIC).........................3-67
DIC Operation and Displays..........................3-68
DIC Vehicle Customization............................3-86
DIC Warnings and Messages........................3-73
Driving
At Night.....................................................4-12
Before a Long Trip......................................4-14
Defensive..................................................... 4-2
Drunk.......................................................... 4-3
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Page 451 of 462

Driving (cont.)
Highway Hypnosis.......................................4-14
Hill and Mountain Roads..............................4-15
In Rain and on Wet Roads...........................4-12
Loss of Control...........................................4-10
Off-Road Recovery......................................4-10
Rocking Your Vehicle to Get it Out.................4-19
Winter........................................................4-16
Driving for Better Fuel Economy......................... 4-2
Dual Climate Control System............................3-40
E
EDR .............................................................7-17
Electrical Equipment
Add-On Equipment......................................5-94
Electrical System
Fuses and Circuit Breakers...........................5-95
Headlamp Wiring.........................................5-95
Power Windows and Other Power Options......5-95
Rear Underseat Fuse Block..........................5-98
Underhood Fuse Block.................................5-95
Windshield Wiper Fuses...............................5-95
Electronic Immobilizer
PASS-Key
®III+...........................................2-22Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-23
Engine
Air Cleaner/Filter.........................................5-17
Check and Service Engine Soon Lamp...........3-61
Compartment Overview................................5-12
Coolant......................................................5-23
Coolant Heater............................................2-28
Coolant Temperature Gage...........................3-60
Coolant Temperature Warning Light................3-59
Cooling System...........................................5-22
Drive Belt Routing.......................................6-14
Exhaust.....................................................2-36
Oil .............................................................5-13
Oil Life System...........................................5-16
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Starting......................................................2-26
Entry Lighting.................................................3-35
eporting Safety Defects to the
United States Government............................7-15
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-32
Exterior Lamps...............................................3-29
Exterior Lighting Battery Saver..........................3-34
5

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F
Filter
Engine Air Cleaner......................................5-17
Finish Damage...............................................5-93
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass.................................................3-13
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-74
Flat Tire, Storing.............................................5-83
Floor Mats.....................................................2-63
Fluid
Automatic Transmission................................5-19
Power Steering...........................................5-31
Windshield Washer......................................5-32
Fog Lamp
Fog ...........................................................3-34
Fog Lamp Light..............................................3-65
Footwell Lamps..............................................3-36
Forward Collision Alert (FCA) System.................. 3-9
Front Storage Area.........................................2-62
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Economy Driving........................................... 4-2
Filling a Portable Fuel Container..................... 5-9Fuel (cont.)
Filling the Tank............................................. 5-7
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-66
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Fuses
Fuses and Circuit Breakers...........................5-95
Rear Underseat Fuse Block..........................5-98
Underhood Fuse Block.................................5-95
Windshield Wiper.........................................5-95
G
Gage
Speedometer..............................................3-52
Tachometer.................................................3-52
Gages
Engine Coolant Temperature.........................3-60
Fuel..........................................................3-66
Garage Door Opener.......................................2-55
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-62
GM Mobility Reimbursement Program.................. 7-7
6

Page 453 of 462

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................5-43
Headlamp Wiring............................................5-95
Headlamps
Bulb Replacement.......................................5-46
Daytime Running Lamps (DRL).....................3-33
Exterior Lamps............................................3-29
Flash-to-Pass..............................................3-13
High Intensity Discharge (HID) Lighting...........5-46
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-33
Wiper Activated...........................................3-32
Heated
Steering Wheel............................................. 3-7
Heated Seats................................................... 1-5
Heater
Engine Coolant...........................................2-28
Highbeam On Light.........................................3-66
High-Speed Operation, Tires.............................5-59
Highway Hypnosis...........................................4-14Hill and Mountain Roads..................................4-15
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-17
I
Ignition Positions.............................................2-25
Inadvertent Power Battery Saver.......................3-37
Infants and Young Children, Restraints...............1-36
Ination - Tire Pressure...................................5-57
Instrument Panel
Brightness..................................................3-34
Cluster.......................................................3-51
Overview..................................................... 3-4
Introduction...................................................... 6-2
J
Jump Starting.................................................5-38
7

Page 454 of 462

K
Keyless Entry, Remote Operation........................ 2-5
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-49
Lamp
Malfunction Indicator....................................3-61
Lamps
Cornering...................................................3-34
Courtesy....................................................3-35
Daytime Running (DRL)................................3-33
Exterior Lighting Battery Saver......................3-34
Footwell.....................................................3-36
Reading.....................................................3-35
Lane Departure Warning..................................2-49
Lane Departure Warning Light..........................3-59
Lap Belt ........................................................1-31
Lap-Shoulder Belt...........................................1-26
LATCH System for Child Restraints...................1-43
Lighting
Entry.........................................................3-35
Parade Dimming..........................................3-35Lights
Airbag Readiness........................................3-54
Antilock Brake System (ABS) Warning............3-57
Brake System Warning.................................3-56
Charging System.........................................3-56
Cruise Control.............................................3-66
Engine Coolant Temperature Warning.............3-59
Exterior Lamps............................................3-29
Flash-to-Pass..............................................3-13
Fog Lamp ..................................................3-65
Highbeam On.............................................3-66
High/Low Beam Changer................................ 3-9
Lane Departure Warning...............................3-59
Lights On Reminder.....................................3-65
Oil Pressure...............................................3-64
On Reminder..............................................3-33
Passenger Airbag Status Indicator..................3-55
Safety Belt Reminders..................................3-53
Security.....................................................3-65
StabiliTrak
®Indicator....................................3-58
Tire Pressure..............................................3-60
Traction Control System (TCS) Warning..........3-58
Loading Your Vehicle.......................................4-19
Lockout Switch, Valet......................................2-20
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