engine coolant CADILLAC DEVILLE 2003 8.G Owner's Manual

CAUTION: (Continued)
vehicle's coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you wouldn't get the overheat warning.
Your engine could catch ®re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
žcoolant.
Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Don't spill coolant on a hot engine.1. Park the vehicle on a level surface. You can
remove the coolant surge tank pressure cap
when the cooling system, including the coolant
surge tank pressure cap and upper radiator hose, is
no longer hot. Turn the pressure cap slowly
counterclockwise (left) until it ®rst stops. (Don't
press down while turning the pressure cap.)
If you hear a hiss, wait for that to stop. A hiss means
there is still some pressure left.
5-33

4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the
engine cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge tank
until the level reaches about 4.5 inches (11.4 cm)
from the top of the ®ller neck.5. Then replace the pressure cap. Be sure the arrow
on the pressure cap lines up like this.
Start the engine and allow it to warm up. If the CHECK
COOLANT LEVEL message does not appear on the
Driver Information Center, coolant is at the proper
®ll level. If a CHECK COOLANT LEVEL message does
appear, repeat Steps 1 to 3 and reinstall the pressure
cap or see your dealer.
5-35

Windshield Washer Fluid
What to Use
When you need windshield washer ¯uid, be sure to read
the manufacturer's instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a ¯uid that has
sufficient protection against freezing.
Adding Washer Fluid
The CHECK WASHER FLUID message will be
displayed on the Driver Information Center (DIC) when
the ¯uid is low.
The windshield washer
¯uid reservoir is located in
front of the underhood
fuse block on the
passenger's side of the
vehicle.
See
Engine Compartment Overview on page 5-12for
reservoir location.
Open the cap with the washer symbol on it. Add washer
¯uid until the tank is full.
Notice:
·When using concentrated washer ¯uid, follow
the manufacturer's instructions for adding
water.
·Don't 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 doesn't
clean as well as washer ¯uid.
·Fill your washer ¯uid tank only three-quarters
full when it's very cold. This allows for
expansion if freezing occurs, which could
damage the tank if it is completely full.
·Don't use engine coolant (antifreeze) in your
windshield washer. It can damage your
washer system and paint.
5-37

82,500 Miles (137 500 km)
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
90,000 Miles (150 000 km)
qReplace passenger compartment air ®lter. If you
drive regularly under dusty conditions, the ®lter
may require replacement more often.
qInspect throttle body bore and valve plates for
deposits, open the throttle valve and inspect all
surfaces. Clean as required.
An Emission Control
Service. (See footnote ².)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-19for more information.An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
97,500 Miles (162 500 km)
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qReplace spark plugs.An Emission Control Service.
qChange automatic transaxle ¯uid and ®lter if the
vehicle is mainly driven under one or more of
these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as limousine service.
þ Uses such as high performance operation.
If you do not use your vehicle under any of these
conditions, the ¯uid and ®lter do not require change until
the message CHANGE TRANS FLUID appears on
the Driver Information Center.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-24for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-8

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals speci®ed to
help ensure the safety, dependability and emission
control performance of your vehicle.
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
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel ®ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-13for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOLž
coolant mixture if necessary. SeeEngine Coolant
on page 5-24for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
See
Windshield Washer Fluid on page 5-37for further
details.
At Least Once a Month
Tire In¯ation Check
Make sure tires are in¯ated to the correct pressures.
Don't forget to check your spare tire. SeeTires on
page 5-60for further details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every 50 hours of tape play. SeeAudio System(s)
on page 3-80for further details.
6-9

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-24.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Automatic
TransaxleDEXRON
ž-IIII Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor
and Release
PawlLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723, or equivalent) 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, or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
10953014, or equivalent).
6-15

Center Console Storage Area...........................2-51
Center Flex Storage Unit.................................2-52
Center Front Passenger Position, Safety Belts....1-21
Center High-Mounted Stoplamp (CHMSL)...........5-58
Chains, Tires..................................................5-70
Charging System Light....................................3-46
Checking Coolant............................................5-26
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-60
Check...........................................................3-50
Engine Light...............................................3-50
Chemical Paint Spotting...................................5-90
Child Restraints..............................................1-35
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-41
Older Children.............................................1-29
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Securing a Child Restraint in a Rear Seat
Position..................................................1-44
Securing a Child Restraint in the Right Front
Seat Position...........................................1-46
Top Strap Anchor Location............................1-41
Top Strap...................................................1-39
Where to Put the Restraint...........................1-38Cigarette Lighter.............................................3-28
Cleaning Aluminum or Chrome-Plated Wheels.....5-89
Cleaning Exterior Lamps/Lenses.......................5-88
Cleaning Fabric/Carpet....................................5-85
Cleaning Glass Surfaces..................................5-87
Cleaning Leather............................................5-86
Cleaning the Interior Plastic Components...........5-86
Cleaning the Mirror.................................2-40, 2-42
Cleaning the Speaker Covers...........................5-87
Cleaning the Top of the
Instrument Panel.........................................5-86
Cleaning Tires................................................5-89
Cleaning Vinyl................................................5-86
Cleaning Windshield and Wiper Blades..............5-89
Cleaning Wood Panels....................................5-87
Cleaning........................................................5-84
Inside of Your Vehicle..................................5-84
Outside of Your Vehicle................................5-88
Underbody Maintenance...............................5-90
Weatherstrips..............................................5-87
Climate Control System...................................3-36
Air Filter, Passenger Compartment.................3-36
Climate Controls Personalization....................3-39
Dual..........................................................3-29
Outlet Adjustment........................................3-33
Rear..........................................................3-34
Steering Wheel Controls...............................3-38
Comfort Controls, DIC Personalization................3-67
3

Compact Disc Changer Errors.........................3-103
Compact Disc Messages..........................3-88, 3-99
Compact Spare Tire........................................5-83
Compass Calibration.......................................2-41
Compass Operation.........................................2-41
Compass Variance..........................................2-41
Console Shift Lever.........................................2-36
Continuous Variable Road Sensing Suspension
(CVRSS)....................................................4-10
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-53
Coolant.........................................................3-50
Engine Temperature Gage............................3-50
Engine Temperature Warning Light.................3-49
Heater, Engine............................................2-25
Surge Tank Pressure Cap.............................5-27
Cooling System..............................................5-30
Cornering Lamps............................................3-17
Courtesy Lamps.............................................3-20
Cruise Control Light........................................3-55
Cruise Control................................................3-12
Current and Past Model Order Forms................7-12
Customer Assistance Information........................ 7-8
Courtesy Transportation.................................. 7-8
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-6Customer Assistance Information (cont.)
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-32
Digital Cluster.................................................3-41
Dinghy Towing................................................4-31
Display Mode.................................................3-43
Diversity Antenna System...............................3-108
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-32
Door............................................................... 2-9
Central Door Unlocking System....................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-10
Doors Lock in Gear.........................................3-73
Doors Unlock in PARK (P)................................3-75
Doors Unlock Key Off......................................3-76
4

Driver Information Center (DIC).........................3-57
Climate Controls and Radio System
Personalization........................................3-67
DIC Controls and Displays............................3-57
DIC Vehicle Personalization..........................3-67
DIC Warnings and Messages........................3-60
Driver Unlock in PARK (P)................................3-74
Driver Unlock Key Off......................................3-74
Driver............................................................1-14
Position, Safety Belt.....................................1-14
Driver's Name Set/Recall.................................3-78
Driving on Grades...........................................4-39
Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-19
Driving Through Flowing Water.........................4-19
Driving with a Trailer.......................................4-38
Driving..........................................................4-16
At Night.....................................................4-16
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-17
Winter........................................................4-25
Dual Climate Control System............................3-29E
Electrical System............................................5-93
Add-On Equipment......................................5-93
Fuses and Circuit Breakers...........................5-94
Headlamp Wiring.........................................5-93
Power Windows and Other Power Options......5-93
Removing the Rear Seat Cushion..................5-96
Windshield Wiper Fuses...............................5-93
Emergency Trunk Release Handle.....................2-13
Emissions Inspection and Maintenance
Programs...................................................3-53
Engine Coolant Level Check.............................. 6-9
Engine Cooling When Trailer Towing..................4-40
Engine Oil Additives........................................5-17
Engine Oil Level Check..................................... 6-9
Engine Oil Scheduled Maintenance..................... 6-5
Engine Speed Limiter......................................3-44
Engine..........................................................5-19
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-41
Check and Service Engine Soon Light............3-50
Compartment Overview................................5-12
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-50
Coolant Temperature Warning Light................3-49
5

Engine (cont.)
Coolant......................................................5-24
Cooling System Inspection............................6-14
Exhaust.....................................................2-38
Oil .............................................................5-13
Overheating................................................5-27
Starting......................................................2-25
English/Metric Button.......................................3-44
Entering Feature Programming..........................3-67
Entry Lighting.................................................3-20
Erasing HomeLink
žButtons..............................2-50
Exiting Feature Programming............................3-78
Express-Down Window....................................2-16
Express-Up Window........................................2-16
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-19
Exterior Lights at Unlock..................................3-72
F
Filter.............................................................5-19
Engine Air Cleaner......................................5-19
Finding a PTY Station (RDS and XMŸ).............3-94
Finding a PTY Station (XMŸ Only)...................3-83
Finding a Station....................................3-82, 3-90
Finish Care....................................................5-88Finish Damage...............................................5-90
Flash-To-Pass.................................................. 3-9
Flat Tire, Changing.........................................5-72
Flat Tire........................................................5-71
Floor Mats.....................................................2-53
Fluid.............................................................5-21
Automatic Transaxle.....................................5-21
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM Stereo....................................................3-105
Fog Lamp Light..............................................3-54
Fog Lamps....................................................3-17
Following Distance..........................................4-38
Footnotes........................................................ 6-5
Front Ashtray.................................................3-28
Front Storage Area.........................................2-51
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Data Display...............................................3-56
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-55
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-13
6