2002 CADILLAC ELDORADO coolant level

2-81
If this message appears and stays on while driving or
after starting your vehicle, have it checked immediately
to determine the cause of this problem. To help the
generator recharge the battery quickly, you can reduce
the load on the electrical system by turning off the
accessories. You can monitor battery voltage on the
DIC by pressing the SKIP INFO button. The normal
range is 11.5 to 15.5 volts.
CHANGE ENGINE OIL
- 82: This means that
the life of the engine oil has expired and it should be
changed within 200 miles (322 km). See ªEngine Oilº
in the Index. After an oil change, the Oil Life Indicator
must be reset. See ªOil Life Indicator, How to Resetº
in the Index.
CHANGE TRANS FLUID
- 47: This message will
appear when it is time to replace the transaxle fluid.
See ªMaintenance Scheduleº in the Index for the proper
fluid and change intervals.CHECK BRAKE FLUID LEVEL
- 37: This message
will display if the ignition is in RUN to inform the
driver that the brake fluid level is low. Have the brake
system serviced by a technician as soon as possible.
See ªBrake System Warning Lightº in the Index.
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 3.5 gallons
(13.2 L) remaining. 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.

2-82
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 windshield 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 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).
DRIVER DOOR AJAR
- 140: This message will
display when the vehicle is being shifted out of
PARK (P) with the engine running to signal that the
driver's door is open or ajar. A chime will also sound
when the vehicle's speed is greater than 5 mph (8 km/h).
ENGINE COOLANT HOT, IDLE ENGINE
- 44:
This message will appear when the engine coolant
temperature is over 248
F (126
C). To avoid added
strain on a hot engine, turn off the climate control
system. Stop and allow your vehicle to idle until it cools
down or the message is removed. If it does not cool
down, turn off the engine and have it serviced before
driving it again. Severe engine damage can result from
an overheated engine. See ªEngine Overheatingº in
the Index.

2-83
ENGINE HOT - A/C OFF - 16: This message
displays when the engine coolant becomes hotter than
the normal operating temperature. To avoid added strain
on a hot engine, the air conditioning compressor is
automatically turned off so that air conditioned air is
not delivered. If the coolant temperature returns to
normal, you must select AC to return to a normal A/C
compressor operation. If this message continues to
appear, have the system repaired as soon as possible to
avoid compressor damage.
ENGINE MISFIRE
-- EASE OFF GAS
PEDAL
- 114: An engine misfire has occurred.
You'll need to ease off the gas pedal.
ENGINE OVERHEATED, STOP ENGINE
- 42:
This message will appear when the engine has overheated.
Stop and turn the engine off immediately to avoid severe
engine damage. See ªEngine Overheatingº in the Index.
A multiple chime will also sound when this message
is displayed.
ENGINE POWER REDUCED
- 41: This message
informs you that your vehicle is reducing engine power
because the transaxle is being placed in gear under
conditions that may cause damage to the vehicle
powertrain or vehicle acceleration.FUEL LEVEL LOW
- 11 : This message serves as
a warning that the fuel level in the tank is critically low.
Stop for fuel soon.
HEADLAMPS SUGGESTED
- 23: If it's dark enough
outside and Twilight Sentinel is off, a HEADLAMPS
SUGGESTED message will display on the DIC.
This message informs the driver that turning on the
exterior lamps is recommended even though the
Daytime Running Lamps (DRL) are still illuminated
(it's become dark enough outside to require the
headlamps and/or other exterior lamps).
ICE POSSIBLE
- 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.
LOW REFRIG A/C OFF
- 12: This message means
that the air conditioning system detects a refrigerant
level that is low enough to cause damage to the air
conditioning compressor. Have the air conditioning
system serviced if this message appears.
MONITORED SYSTEMS OK
- 1: This message only
appears in the ªrecallº mode by pressing the NO INFO
RESET button. It lets you know that no other messages
are stored or are currently active.

5-14
Cooling System
When you decide it's safe to lift the hood, here's what
you'll see:
A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Fans
CAUTION:
An electric engine cooling fan under the hood can
start up even when the engine is not running and
can injure you. Keep hands, clothing and tools
away from any underhood electric fan.
If the coolant inside the coolant surge tank is boiling,
don't do anything else until it cools down. The vehicle
should be parked on a level surface.

5-15
A low coolant level should be indicated by a CHECK
COOLANT LEVEL message on the Driver Information
Center. If it is, you may have a leak at the pressure cap
or in the radiator hoses, heater hoses, radiator, water
pump or somewhere else in the cooling system.
CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them.
If you do, you can be burned.
Don't run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they aren't, your vehicle needs service.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty.
See ªOverheated Engine Protection Operating
Modeº in the Index.
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.

5-16 How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level isn't at the proper level (2.5 inches
(6.4 cm) below the base of the fill neck), add a 50/50
mixture of clean, drinkable water and DEX
-COOL

coolant at the coolant surge tank, but be sure the cooling
system, including the coolant surge tank pressure cap,
is cool before you do it. See ªEngine Coolantº in the
Index for more information.
If no coolant is visible in the surge tank, add coolant
as follows:
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly.
They are under pressure, and if you turn
the coolant surge tank pressure cap
-- even
a little
-- they can come out at high speed.
CAUTION: (Continued)
CAUTION: (Continued)
Never turn the cap when the cooling system,
including the coolant surge tank pressure cap,
is hot. Wait for the cooling system and coolant
surge tank pressure cap to cool if you ever have
to turn the pressure cap.

5-18
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
first 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.2. Then keep turning the cap, but now push down as
you turn it. Remove the pressure cap.

5-19
3. Then fill the coolant surge tank with the proper
mixture, to the base of the filler neck.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 2.5 inches (6.4 cm)
below the base of the filler neck.