overheating CADILLAC DEVILLE 1999 7.G User Guide

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6-23
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see ªEngine Overheatingº in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.

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6-42
2. Insert a screwdriver into the slot as shown and press
down to release the wiper blade assembly.
3. Align the wiper arm pin with the hole on the wiper
blade assembly and snap it into place to install.
Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service, see
your Cadillac Warranty booklet for details.
CAUTION:
Poorly maintained and improperly used tires
are dangerous.

Overloading your tires can cause
overheating as a result of too much friction.
You could have an air
-out and a serious
accident. See ªLoading Your Vehicleº in
the Index.
CAUTION: (Continued)

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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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8-8
Loss of Control 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low-Refrigerant A/C Off Message 2-86 . . . . . . . . . . . . . . . . .
Lumbar Controls 1-2, 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar, Massaging 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnasteer
4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Normal Replacement Parts 6-70 . . . . . . . . . . . .
Maintenance, Underbody 6-56 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-39 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-73 . . . . . . . . . . . . . . . . . . . . . .
Map Lamps 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Map Pocket 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Massaging Lumbar 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Matching Transmitters To Your Vehicle 2-8 . . . . . . . . . . . . . .
Mats, Floor 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MaxiFuses
/Relay Center 6-59 . . . . . . . . . . . . . . . . . . . . . . . .
Memory and Personalization Features 2-90 . . . . . . . . . . . . . . .
Memory Seat and Mirrors 1-3, 2-90 . . . . . . . . . . . . . . . . . . . .
Methanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors
Convex Outside 2
-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver's Outside Auto-Dimming Rearview 2-52 . . . . . . . . .
Lighted Visor Vanity 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Seat and Mirrors 1-3 . . . . . . . . . . . . . . . . . . . . . . .
Power Remote Control 2-51 . . . . . . . . . . . . . . . . . . . . . . . . .
MMT 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Reference ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monitored Systems OK Message 2
-86 . . . . . . . . . . . . . . . . . . .
Mountain Road Driving 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction Lever 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net, Convenience 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Neutral, Automatic Transaxle 2-24 . . . . . . . . . . . . . . . . . . . . .
New Vehicle Break-In 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance Replacement Parts 6-70 . . . . . . . . . . . . .
Odometer 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer, Trip 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Road Recovery 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil, Engine 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Life Indicator 2-95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Life Indicator, How to Reset 6-15 . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 2-76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Low Stop Engine Message 2-86 . . . . . . . . . . . . .
OnStar
System 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options Not Set Message 2-86 . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive, Automatic Transaxle 2-25 . . . . . . . . . . . . . . . . . . .
Overheated Engine Protection Operating Mode 5-9 . . . . . . . .
Overheating, Engine 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications, Ordering 7-11, 7-12 . . . . . . . . . . . . . . . .
Paint Spotting, Chemical 6-56 . . . . . . . . . . . . . . . . . . . . . . . .
Parade Dimming 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARK (P)
Automatic Transaxle 2
-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Into 2-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Out of 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .