1999 CADILLAC DEVILLE fuel cap

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6-6
The fuel door release button
is located to the left of the
steering wheel next to the
headlamp knob and on
the remote keyless
entry transmitter.
The button only works in PARK (P) or NEUTRAL (N)
when the ignition key is in any position and the VALET
lockout button is in the OFF position.
An alternate fuel door
release is located inside of
the trunk on the driver's
side. Pull it to release the
fuel door.While refueling, hang the cap by the tether from the
hook on the filler door.
To remove the cap, turn it slowly to the left
(counterclockwise). The cap has a spring in it; if you let
go of the cap too soon, it will spring back to the right.

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6-7
CAUTION:
If you get gasoline on yourself and then
something ignites it, you could be badly burned.
Gasoline can spray out on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any ªhissº noise to stop. Then unscrew
the cap all the way.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See ªCleaning the
Outside of Your Vehicleº in the Index.When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See ªMalfunction Indicator Lampº in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See ªMalfunction Indicator Lampº in
the Index.

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6-44
Example:
You'll find maximum load and inflation pressure
molded on the tire's sidewall, in small letters, near the
rim flange. It will read something like this: Maximum
load 690 kg (1521 lbs.) @ 300 kPa (44 psi) Max. Press.
For this example, you would set the inflation pressure
for high
-speed driving at 38 psi (265 kPa).
NOTICE:
Don't let anyone tell you that underinflation or
overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can
get the following:

Too much flexing

Too much heat

Tire overloading

Bad wear

Bad handling

Bad fuel economy.
NOTICE: (Continued)
NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:

Unusual wear

Bad handling

Rough ride

Needless damage from road hazards.
When to Check
Check your tires once a month or more.
Don't forget your compact spare tire. It should be at
60 psi (420 kPa).
How to Check
Use a good quality pocket
-type gage to check tire
pressure. You can't tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt
and moisture.

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6-70 Wheel Nut Torque
100 lb-ft (140 N´m)
Capacities
Transaxle (4T80-E) 15.0 quarts (14.2 L). . . . . . . . . .
Crankcase (Engine Oil with
Filter Change) 7.5 quarts (7.1 L). . . . . . . . . . . . . . .
Engine Cooling System 12.5 quarts (11.8 L). . . . . . . .
Fuel Tank 20.0 gallons (75.7 L). . . . . . . . . . . . . . . . . .
R
-134a Refrigerant 2.0 lbs. (0.91 kg). . . . . . . . . . . . .
NOTE: All capacities are approximate. When adding, be
sure to fill to the approximate level, as recommended in
this manual. Recheck fluid level after filling.
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air
conditioning system in your vehicle needs refrigerant, be
sure the proper refrigerant is used. If you're not sure, ask
your dealer.
Normal Maintenance
Replacement Parts
Air Filter Element AC Type A1096C. . . . . . . . . . . . .
Fuel Filter Element AC Type GF
-650 . . . . . . . . . . . .
Engine Oil Filter AC Type PF
-58 . . . . . . . . . . . . . . . .
PCV Valve AC Type CV
-774C . . . . . . . . . . . . . . . . . .
Spark Plugs AC Type 41
-900 . . . . . . . . . . . . . . . . . . .
Thermostat AC Type 131
-66 . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Blade
(Pin Type) 22 inches (56.5 cm). . . . . . . . . . . . . . . . .
Vehicle Dimensions
Wheel Base 113.8 inches (289.0 cm). . . . . . . . . . . . .
Length 209.8 inches (533.0 cm). . . . . . . . . . . . . . . . .
Height 56.0 inches (142.1 cm). . . . . . . . . . . . . . . . . . .
Width 76.5 inches (194.3 cm). . . . . . . . . . . . . . . . . . .
Front Tread 60.9 inches (154.6 cm). . . . . . . . . . . . . . .
Rear Tread 60.9 inches (154.6 cm). . . . . . . . . . . . . . .

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8-2
Battery 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Not Charging Message 2-82 . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Remote Keyless Entry 2-8 . . . . . . . . . . . . . . .
Savers 2-46, 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage High Message 2-83 . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Low Message 2-83 . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 7-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 7-3 . . . . . . . . . . . . . . . . . . .
Blade Replacement, Windshield Wipers 6-41 . . . . . . . . . . . . .
Blizzard 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake
Adjustment 6
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking 2-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-32 . . . . . . . . . . . . . . . . . . . . . . . .
System Warning Light 2-69 . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock (BTSI) 2-31 . . . . . . . . . . . . . . . . .
Vacuum Problem Message 2-83 . . . . . . . . . . . . . . . . . . . . . .
Wear 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulb Replacement 6
-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp 6-39 . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps 6-38 . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Turn Signal Lamp 6-40 . . . . . . . . . . . . . . . . . . . . . . . .
Taillamps 6-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-69 . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-33, 4-28, 4-35 . . . . . . . . . . . . . . . . . . . .
Carpet Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-39 . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Players 3-16, 3-19, 3-28 . . . . . . . . . . . . . . . . . .
CD Adapter Kits 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Changer, Trunk-Mounted 3-32 . . . . . . . . . . . . . . . . . . . . .
Cellular Telephone 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Console Storage 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp, Bulb Replacement 6-39 . . .
Center Passenger Position 1-29 . . . . . . . . . . . . . . . . . . . . . . . .
Central Door Unlocking System 2-5 . . . . . . . . . . . . . . . . . . . .
Certification Label 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Safety 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Engine Oil Message 2-83 . . . . . . . . . . . . . . . . . . . . . .
Change Trans Fluid Message 2-84 . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Light 2-69 . . . . . . . . . . . . . . . . . . . . . . . . . .
Check
Brake Fluid Message 2
-84 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Gauge Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Cap Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer Fluid Message 2-84 . . . . . . . . . . . . . . . . . . . . . . . . .

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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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8-11
Bulletins, Ordering 7-11, 7-12 . . . . . . . . . . . . . . . . . . . . . . .
Charging Sys Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Sys Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Soon Light 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel System Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Control Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . .
Manuals, Ordering 7-11, 7-12 . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications 7-11, 7-12 . . . . . . . . . . . . . . . . . . . . . .
Parts Identification Label 6-58 . . . . . . . . . . . . . . . . . . . . . . .
Publications, Ordering 7-11, 7-12 . . . . . . . . . . . . . . . . . . . .
Ride Sys Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stability Sys Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Sys Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Soon Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . .
Work, Doing Your Own 6-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Your Air Bag-Equipped Vehicle 1-29 . . . . . . . . . . .
Setting the Clock 3-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sheet Metal Damage 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Levers 2-29, 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting
Automatic Transaxle 2
-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
Into PARK (P) 2-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Out of PARK (P) 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shoulder Belt Height Adjuster 1-14 . . . . . . . . . . . . . . . . . . . . .
Shoulder Belt Tightness Adjustment 1-14 . . . . . . . . . . . . . . . .
Signaling Turns 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIR 1-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Skidding 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound Equipment, Adding 3-39 . . . . . . . . . . . . . . . . . . . . . . . . Spare Tire, Compact 5
-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker Covers, Cleaning 6-52 . . . . . . . . . . . . . . . . . . . . . . . .
Specifications and Capacities 6-69 . . . . . . . . . . . . . . . . . . . . . .
Speech Impaired, Customer Assistance 7-3 . . . . . . . . . . . . . . .
Speedometer 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stability Sys Engaged Message 2-88 . . . . . . . . . . . . . . . . . . . .
Starting Disabled Remove Key Message 2-88 . . . . . . . . . . . . .
Starting Your Engine 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam 5-9, 5-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Column Shift Lever 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Emergencies 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnasteer
4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Controls 3-13, 3-37 . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel, Tilt 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage
Area, Front 2
-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compartments 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Personalization 2-48, 2-94 . . . . . . . . . . . . . . . . . . . . .
System, Trunk 2-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stuck: In Sand, Mud, Ice or Snow 5-30 . . . . . . . . . . . . . . . . . .
Sun Visors 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunroof 2-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Inflatable Restraint 1-21 . . . . . . . . . . . . . . . . . .
Surge Tank, Coolant 5-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank Pressure Cap 6-22 . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols, Vehicle v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .