2008 CADILLAC DTS coolant

(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 5-24
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 you drive 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 the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-13.
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 your warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-24.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
6-9

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 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-24.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring
Anchor, and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293,
in Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and
Door HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
6-13

Child Restraints (cont.)
Securing a Child Restraint in the
Center Front Seat Position........................1-49
Securing a Child Restraint in the
Right Front Seat Position..........................1-50
Where to Put the Restraint...........................1-40
Cleaning
Aluminum or Chrome-Plated Wheels..............5-96
Exterior Lamps/Lenses.................................5-94
Fabric/Carpet..............................................5-91
Finish Care.................................................5-94
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-93
Interior.......................................................5-90
Leather......................................................5-92
Speaker Covers..........................................5-93
Tires..........................................................5-97
Underbody Maintenance...............................5-97
Washing Your Vehicle...................................5-94
Weatherstrips..............................................5-94
Windshield and Wiper Blades........................5-95
Wood Panels..............................................5-93
Climate Control System
Air Filter, Passenger Compartment.................3-51
Dual ..........................................................3-42
Outlet Adjustment........................................3-48
Rear ..........................................................3-49
Clock............................................................3-42
Clock, Setting.................................................3-97Coinholder(s)..................................................2-59
Collision Damage Repair..................................7-13
Compass.................................................1-9, 2-36
Content Theft-Deterrent....................................2-19
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-60
Coolant
Engine.......................................................5-24
Engine Temperature Gage............................3-64
Engine Temperature Warning Light.................3-63
Surge Tank Pressure Cap.............................5-27
Cooled Seats................................................... 1-3
Cooling System..............................................5-30
Cornering Lamps............................................3-37
Courtesy Lamps.............................................3-37
Cruise Control................................................3-16
Cruise Control, Forward Collision Alert (FAC)
System......................................................3-10
Cruise Control Light........................................3-68
Cupholders....................................................2-59
Customer Assistance Information
Courtesy Transportation................................7-11
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-6
Customer Assistance Offices........................... 7-6
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to General Motors....7-16
3

Electronic Immobilizer Operation
PASS-Key®III+...........................................2-21
Engine
Air Cleaner/Filter.........................................5-20
Check and Service Engine Soon Light............3-65
Coolant......................................................5-24
Coolant Heater............................................2-26
Coolant Temperature Gage...........................3-64
Coolant Temperature Warning Light................3-63
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-34
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-29
Overheating................................................5-27
Starting......................................................2-24
Entry Lighting.................................................3-37
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-32
Exterior Lighting Battery Saver..........................3-37F
Filter
Engine Air Cleaner......................................5-20
Finish Damage...............................................5-97
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass.................................................3-13
Flat Tire........................................................5-78
Flat Tire, Changing.........................................5-79
Flat Tire, Storing.............................................5-87
Floor Mats.....................................................2-60
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
Fog Lamp
Fog ...........................................................3-36
Fog Lamp Light..............................................3-68
Footwell Lamps..............................................3-38
Forward Collision Alert (FAC) System................3-10
Front Storage Area.........................................2-59
5

Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-11
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-69
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Running Out of...........................................2-35
Fuses
Fuses and Circuit Breakers.........................5-101
Rear Underseat Fuse Block.........................5-104
Underhood Fuse Block...............................5-101
Windshield Wiper.......................................5-100
G
Gage
Engine Coolant Temperature.........................3-64
Fuel..........................................................3-69
Speedometer..............................................3-55
Tachometer.................................................3-55
Garage Door Opener.......................................2-52
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-59
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp
Aiming .......................................................5-47
Headlamp Wiring...........................................5-100
Headlamps
Bulb Replacement.......................................5-50
Daytime Running Lamps...............................3-35
Exterior Lamps............................................3-32
Flash-to-Pass..............................................3-13
High Intensity Discharge (HID) Lighting...........5-50
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-35
Wiper Activated...........................................3-35
Heated Seats................................................... 1-3
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-42
Engine Coolant...........................................2-26
Highbeam On Light.........................................3-69
High-Speed Operation, Tires.............................5-62
Highway Hypnosis...........................................4-14
Hill and Mountain Roads..................................4-15
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-16
6

I
Ignition Positions.............................................2-23
Inadvertent Power Battery Saver.......................3-40
Infants and Young Children, Restraints...............1-34
Ination - Tire Pressure...................................5-60
Instrument Panel
Brightness..................................................3-37
Cluster.......................................................3-54
Overview..................................................... 3-4
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-53
Lamps
Cornering...................................................3-37
Courtesy....................................................3-37
Exterior Lighting Battery Saver......................3-37
Footwell.....................................................3-38Lamps (cont.)
Inadvertent Power Battery Saver....................3-40
Reading.....................................................3-38
Lane Departure Warning..................................2-46
Lane Departure Warning Light..........................3-63
Lap Belt........................................................1-29
Lap-Shoulder Belt...........................................1-24
LATCH System
Child Restraints...........................................1-41
Light
Airbag Readiness........................................3-57
Anti-lock Brake System (ABS) Warning...........3-61
Brake System Warning.................................3-60
Charging System.........................................3-60
Cruise Control.............................................3-68
Engine Coolant Temperature Warning.............3-63
Fog Lamp ..................................................3-68
Highbeam On.............................................3-69
Lane Departure Warning...............................3-63
Lights On Reminder.....................................3-68
Malfunction Indicator....................................3-65
Oil Pressure...............................................3-67
Passenger Airbag Status Indicator..................3-58
Safety Belt Reminders..................................3-56
Security.....................................................3-68
StabiliTrak
®Indicator....................................3-62
TCS Warning Light......................................3-62
Tire Pressure..............................................3-64
Traction Control System (TCS) Warning..........3-62
7