1999 CADILLAC ELDORADO engine overheat

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6-22 How to Reset Transaxle Fluid
Change Indicator
Your vehicle is equipped with a transaxle fluid change
indicator. A CHANGE TRANS FLUID message will
display on the Driver Information Center (DIC) when
the powertrain computer determines that the transaxle
fluid needs to be changed or at each 100,000 miles
(160 000 km) interval, whichever occurs first. See your
Maintenance Schedule booklet for more information.
When this message appears, change the transaxle fluid
and reset the transaxle fluid life indicator as follows:
1. Turn the ignition on but do not start the engine.
2. Press and hold the OFF and rear defog buttons on the
climate control system at the same time until the
TRANS FLUID RESET message appears on the DIC.
Surge Tank Pressure Cap
NOTICE:
The surge tank cap is a 15 psi (105 kPa)
pressure
-type cap and must be tightly installed
to prevent coolant loss and possible engine
damage from overheating. Be sure the arrows on
the cap line up.
If the surge tank pressure cap needs to be replaced, a
GM cap is recommended.

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6-23
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
If your thermostat needs to be replaced, a GM
thermostat is recommended.
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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6-24 What to Use
Use a mixture of one-half clean, drinkable water and
one
-half DEX-COOL
coolant which won't damage
aluminum parts. If you use this coolant mixture, you
don't need to add anything else.
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mixture will. Your 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 fire and you or others could be burned. Use
a 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant.
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.

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6-56 Headlamp Wiring
The headlamp wiring has an individual fuse which is
powered by a MaxiFuse
. An electrical overload will
cause the lamps to go on and off, or in some cases to
remain off. If this happens, have the headlamp wiring
checked right away.
Windshield Wiper Fuses
The windshield wiper motor is powered by a
MaxiFuse
. If the motor overheats due to heavy snow,
etc., the wipers will stop until the motor cools. If the
overload is caused by some electrical problem, be sure
to have it fixed.
Power Windows and Other Power Options
Circuit breakers protect the power windows and other
power accessories. When the current load is too heavy,
the circuit breaker opens and closes, protecting the
circuit until the problem is fixed or goes away.
MaxiFuse
/Relay Center
The MaxiFuses and relays are located next to the engine
compartment fuse block on the driver's side of the
engine. To access the compartment fuse block, remove
the shroud cover. If a MaxiFuse should blow, have your
vehicle serviced by your dealer immediately.

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8-5
Electronic Solar Sensor 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Hot, Idle Engine Message 2-74 . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-65 . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Warning Light 2-65 . . . . . . . . . . . . . .
Cooling When Trailer Towing 4-37 . . . . . . . . . . . . . . . . . . .
Exhaust 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hot - A/C Off Message 2-74 . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Misfire -- Ease Off Gas Pedal Message 2-74 . . . . . . . . . . .
Overheated, Stop Engine Message 2-74 . . . . . . . . . . . . . . . .
Overheating 5-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Reduced Message 2-74 . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-31 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speed Limiter 2-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
English/Metric Display 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . .
Ethanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Express
-Down Window 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lighting Battery Saver 2-43 . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Button 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-8 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Engine Air Cleaner 6-16 . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transaxle 2-24 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-To-Pass Feature 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Mats 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid
AutomaticTransaxle 6
-19 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeway Driving 4-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps, Bulb Replacement 6
-35 . . . . . . . . .

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8-9
OnStar
System 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options Not Set Message 2-75 . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive, Automatic Transaxle 2-23 . . . . . . . . . . . . . . . . . . .
Overhead Console 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Engine Protection Operating Mode 5-10 . . . . . . .
Overheating Engine 5-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications, Ordering 7-11, 7-12 . . . . . . . . . . . . . . . .
Paint Spotting, Chemical 6-53 . . . . . . . . . . . . . . . . . . . . . . . .
Parade Dimming 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARK(P)
Automatic Transaxle 2
-21 . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Into 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Out of 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking
At Night 2
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Indicator Light 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lots 2-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Things That Burn 2-30 . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger 's Side Temperature Button 3-2 . . . . . . . . . . . . . . . .
Passing 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PASS-Key
II 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
People with Disabilities, GM Mobility Program 7-5 . . . . . . . .
Personalization, Climate Control 3-9 . . . . . . . . . . . . . . . . . . . .
Personalization Feature, Radio 3-27 . . . . . . . . . . . . . . . . . . . .
Phone Not Present Message 2-75 . . . . . . . . . . . . . . . . . . . . . . . Playing a Cassette Tape 3
-12, 3-19 . . . . . . . . . . . . . . . . . . . . .
Playing a Compact Disc 3-21 . . . . . . . . . . . . . . . . . . . . . . . . . .
Power
Accessory, Retained 2
-19 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antenna Mast Care 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 2-47 . . . . . . . . . . . . . . . . . . . . . . . .
Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Fluid 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows and Other Power Options 6-56 . . . . . . . . . . . . . . .
Pregnancy, Use of Safety Belts 1-19 . . . . . . . . . . . . . . . . . . . .
Problems on the Road 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Pass Key Message 2-75 . . . . . . . . . . . . . . . . . . . . . . .
Programmable Automatic Door Locks 2-5, 2-80 . . . . . . . . . .
Publications, Service and Owner 7-11, 7-12 . . . . . . . . . . . . . .
Pull-Down Feature, Automatic Trunk Lid 2-12 . . . . . . . . . . . .
Radio Data Systems (RDS) Program
Type (PTY) Selections 3-22 . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Personalization with Home and Away Feature 3-27 . . .
Radio Reception, Understanding 3-29 . . . . . . . . . . . . . . . . . . .
Radio Theft-Deterrent Feature 3-28 . . . . . . . . . . . . . . . . . . . . .
Radios 3-10, 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rain, Driving In 4-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rainsense Wipers 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAP 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Lamps 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .