1999 CADILLAC DEVILLE checking oil

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2-84
CHANGE TRANS FLUID - 47: This message will
appear when it is time to replace the transaxle fluid. See
the Maintenance Schedule booklet for the proper fluid
and change intervals.
CHECK BRAKE FLUID
- 37: This message will
display if the ignition is in RUN to inform the driver that
the brake fluid level is low. Check the brake reservoir
level and add fluid as needed. Have the brake system
serviced by a technician as soon as possible. If the brake
warning light is on, follow the directions in that part.
CHECK COOLANT LEVEL
- 2: This message
will appear when there is a low level of engine coolant.
Have the cooling system serviced by a technician as
soon as possible.
CHECK FUEL GAUGE
- 39: This message will
appear when the fuel supply is less than four gallons
(15.2 L) and the display is turned off (digital clusters
only). A single chime will also sound when this message
is displayed.
CHECK GAS CAP
- 61: This message will appear if
the gas cap has not been fully tightened. You should
recheck your gas cap to ensure that it's fully tightened.CHECK OIL LEVEL
- 36: For correct operation of
the low oil sensing system, your vehicle should be on a
level surface. A false CHECK OIL LEVEL message
may appear if the vehicle is parked on grades. The oil
level sensing system does not check for actual oil level
if the engine has been off for a short period of time, and
the oil level is never sensed while the engine is running.
If the CHECK OIL LEVEL message appears, and your
vehicle has been parked on level ground with the engine
off for at least 30 minutes, the oil level should be
checked by observing the oil dipstick. Prior to checking
the oil level, be sure the engine has been off for five
minutes and your vehicle is on a level surface. Then
check the dipstick and add oil if necessary. See
ªEngine Oilº in the Index.
CHECK WASHER FLUID
- 25: This message will
appear for several seconds indicating that you need
washer solvent.
CRUISE ENGAGED
- 43: This message will appear for
a few seconds when you select a speed at which to cruise.
DOOR AJAR
- 141: A door other than the driver's
door is open or ajar when this message appears. The
vehicle's engine must be running and the transaxle not
in PARK (P) for this message to display. A chime
will also sound when the vehicle's speed is greater than
5 mph (8 km/h).

6-
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6-1
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-5 Filling Your Tank
6
-8 Filling a Portable Fuel Container
6
-8 Checking Things Under the Hood
6
-11 Engine Oil
6
-16 Engine Air Cleaner/Filter
6
-19 Automatic Transaxle Fluid
6
-23 Engine Coolant
6
-27 Windshield Washer Fluid
6
-28 Brakes
6
-32 Battery
6
-33 Bulb Replacement
6
-41 Windshield Wiper Blade Replacement6
-42 Tires
6
-51 Appearance Care
6
-51 Cleaning the Inside of Your Vehicle
6
-54 Cleaning the Outside of Your Vehicle
6
-55 Cleaning Aluminum or Chrome-Plated
Wheels (If Equipped)
6
-56 Underbody Maintenance
6
-56 Chemical Paint Spotting
6
-57 GM Vehicle Care/Appearance Materials
6
-58 Vehicle Identification Number (VIN)
6
-59 Electrical System
6
-69 Replacement Bulbs
6
-69 Capacities and Specifications
6
-70 Air Conditioning Refrigerants
6
-70 Normal Maintenance Replacement Parts

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6-8
Filling a Portable Fuel Container
CAUTION:
Never fill a portable fuel container while it is in
your vehicle. Static electricity discharge from the
container can ignite the gasoline vapor. You can
be badly burned and your vehicle damaged if this
occurs. To help avoid injury to you and others:

Dispense gasoline only into
approved containers.

Do not fill a container while it is inside a
vehicle, in a vehicle's trunk, pickup bed or
on any surface other than the ground.

Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.

Don't smoke while pumping gasoline.
Checking Things Under the Hood
CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
CAUTION:
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.

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6-12 Checking Engine Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
When to Add Engine Oil
If the oil is at or below the ADD line, then you'll need
to add at least one quart of oil. But you must use the
right kind. This part explains what kind of oil to use. For
crankcase capacity, see ªCapacities and Specificationsº
in the Index.
NOTICE:
Don't add too much oil. If your engine has so
much oil that the oil level gets above the upper
mark that shows the proper operating range,
your engine could be damaged.
The oil fill cap is located
behind the radiator on the
passenger's side of the
engine. Turn the cap
counterclockwise to
remove it.
Be sure to fill it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back in when you're through.

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6-19
Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:

In heavy city traffic where the outside temperature
regularly reaches 90F (32C) or higher.

In hilly or mountainous terrain.

When doing frequent trailer towing.

Uses such as found in taxi, police or delivery service.

Use such as limousine service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require change
until the message CHANGE TRANS FLUID appears on
the Driver Information Center.
See ªScheduled Maintenance Servicesº in the
Maintenance Schedule booklet.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at the dealership service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading on
the dipstick.
NOTICE:
Too much or too little fluid can damage your
transaxle. Too much can mean that some of the
fluid could come out and fall on hot engine parts
or exhaust system parts, starting a fire. Be sure to
get an accurate reading if you check your
transaxle fluid.
Wait at least 30 minutes before checking the transaxle
fluid level if you have been driving:

When outside temperatures are above 90F (32C).

At high speed for quite a while.

In heavy traffic
-- especially in hot weather.

While pulling a trailer.

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8-3
Checking Engine Oil 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Things Under the Hood 6-8 . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-53 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-43 . . . . . . . . . . .
Securing in the Center Rear Seat Position 1-45 . . . . . . . . . .
Securing in the Right Front Seat Position 1-47 . . . . . . . . . .
Top Strap 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHMSL 6-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chrome-Plated Wheels, Cleaning 6-55 . . . . . . . . . . . . . . . . . .
Cigarette Lighter 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-63 . . . . . . . . . . . . . . . . . . . . . . .
City Driving 4-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning
Aluminum or Chrome
-Plated Wheels 6-55 . . . . . . . . . . . . .
Exterior Lamps/Lenses 6-54 . . . . . . . . . . . . . . . . . . . . . . . .
Fabric/Carpet 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass Surfaces 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-51 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Plastic Components 6-52 . . . . . . . . . . . . . . . . . . . . .
Leather 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of the Windshield and Wiper Blades 6-53 . . . . . . .
Outside of Your Vehicle 6-54 . . . . . . . . . . . . . . . . . . . . . . . .
Speaker Covers 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wood Panels 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Climate Control
Personalization 3
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel Controls 3-13 . . . . . . . . . . . . . . . . . . . . . . .
System 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock, Setting the 3-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coinholder (Front Storage Area) 2-53 . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls and Radio System Personalization 2-94 . . .
Compact Disc Care 3-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Player Care 3-40 . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Players 3-21, 3-30 . . . . . . . . . . . . . . . . . . . . . .
Compact Spare Tire 5-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compartments, Storage 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . .
Compass, Rearview Mirror with 2-49 . . . . . . . . . . . . . . . . . . .
Console Shift Lever 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continual Variable Road Sensing Suspension 2-95 . . . . . . . . .
Control of a Vehicle 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control System, Traction 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience Net 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside Mirror 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater, Engine 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank 5-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System 5-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cornering Lamps 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Lamps 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Transportation 7-8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Engaged Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . . .
Cupholders (in Storage Areas) 2-53, 2-54 . . . . . . . . . . . . . . . .
Curb View Assist Mirror 2-52, 2-93 . . . . . . . . . . . . . . . . . . . .

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8-5
Engine 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Hot, Idle Engine Message 2-85 . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-73 . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Warning Light 2-72 . . . . . . . . . . . . . .
Exhaust 2-33, 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Misfire, Ease Off Gas Pedal Message 2-85 . . . . . . . . . . . . .
Overheated, Stop Engine Message 2-85 . . . . . . . . . . . . . . . .
Overheating 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Reduced Message 2-85 . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-33, 4-28 . . . . . . . . . . . . . . . . . . . .
Specifications 6-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling When Trailer Towing 4-39 . . . . . . . . . . . . . . .
Engine Hot - A/C Off Message 2-85 . . . . . . . . . . . . . . . . . . . .
Engine Oil 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Kind of Oil to Use 6-13 . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Speed Limiter 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
English/Metric Button 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ethanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-33, 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Window 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . Extender, Safety Belts 1
-53 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lighting Battery Saver 2-46 . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Button 3-2, 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-8 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Engine Air Cleaner 6-16 . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transaxle 2-25 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-To-Pass 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Mats 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid
Automatic Transaxle 6
-19 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities 6-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer 2-39, 6-27 . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeway Driving 4-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Storage Area 2
-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps, Bulb Replacement 6-38 . . . . . . . . .

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8-6
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canada 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Panel 2-78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Release 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Container 6-8 . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Level Low Message 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses
Circuit Breakers 6
-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Compartment 6-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Underhood 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gages
Engine Coolant Temperature 2-73 . . . . . . . . . . . . . . . . . . . .
Fuel 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transaxle 2-23 . . . . . . . . . . . . . . . .
Glove Box 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Mobility Program for Persons with Disabilities 7-5 . . . . .
Gross Axle Weight Rating (GAWR) 4-30 . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating (GVWR) 4-30 . . . . . . . . . . . . . .
Guide en Fran†ais ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GVWR 4
-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handles, Assist 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . Head Restraints 1
-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aiming 6-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suggested Message 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Activated 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing, Damage 3-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 7-3 . . . . . . . . . . . . . .
Heated Front Seats 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Road Driving 4-23 . . . . . . . . . . . . . . . . . . .
Hitches 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood
Checking Things Under 6
-8 . . . . . . . . . . . . . . . . . . . . . . . . .
Release 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Add Coolant to the Coolant Surge Tank 5-13 . . . . . . .
How to Reset the Oil Life Indicator 6-15 . . . . . . . . . . . . . . . . .
HVAC Steering Wheel Controls 3-13 . . . . . . . . . . . . . . . . . . .
Hydraulic Brake Warning Lights 2-69 . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ice Possible Message 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Positions 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illuminated Entry 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inadvertent Power Battery Saver 2-48 . . . . . . . . . . . . . . . . . . .
Indicator, Oil Life 2-95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire Pressure 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . .