2002 CADILLAC ELDORADO engine overheat

2-23
In very cold weather, 0
F (-18
C) or colder,
the engine coolant heater can help. You'll get easier
starting and better fuel economy during engine
warm
-up. Usually, the coolant heater should be
plugged in a minimum of four hours prior to starting
your vehicle. At temperatures above 32
F (0
C),
use of the coolant heater is not required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is located on the driver's side of
the engine, behind the transaxle dipstick/fluid fill
location (C) and next to the engine.
3. Plug it into a normal, grounded 110
-volt AC outlet.
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and
cause a fire. You could be seriously injured.
Plug the cord into a properly grounded
three
-prong 110-volt AC outlet. If the cord
won't reach, use a heavy
-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and store
the cord as it was before to keep it away from moving
engine parts. If you don't, it could be damaged.
How long should you keep the coolant heater plugged in?
The answer depends on the outside temperature,
the kind of oil you have, and some other things.
Instead of trying to list everything here, we ask that
you contact your dealer in the area where you'll be
parking your vehicle. The dealer can give you the best
advice for that particular area.

2-28
NOTICE:
Driving with the parking brake on can cause
your rear brakes to overheat. You may have to
replace them and you could also damage other
parts of your vehicle.
If the parking brake has not been fully released and
you try to drive with the parking brake on, the BRAKE
indicator light comes on and stays on. See ªBrake System
Warning Lightº in the Index for more information.
When you move out of PARK (P) or NEUTRAL (N),
if the engine is running, the parking brake should release.
If it doesn't, you can manually release the parking brake.
CAUTION:
Always shift to PARK (P) before pulling the
manual release lever. If your hand or arm is in
the way of the pedal you could be hurt. The pedal
springs back quickly. Keep your hand and arm
away when you use the manual release lever.
Be sure to turn off the ignition and put the vehicle
in PARK (P) before manually releasing the brake.
Reach under the driver's side of the instrument panel
and pull on the manual release lever, which is located
above the parking brake pedal. If the parking brake does
not release, you should either drive to the nearest service
station or have your vehicle towed.
If you are towing a trailer and are parking on a hill,
see ªTowing a Trailerº in the Index. This section
shows what to do first to keep the trailer from moving.

2-30 Leaving Your Vehicle With the
Engine Running
CAUTION:
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully in PARK (P)
with the parking brake firmly set. And, if you
leave the vehicle with the engine running, it could
overheat and even catch fire. You or others could
be injured. Don't leave your vehicle with the
engine running unless you have to.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P) and your
parking brake is firmly set before you leave it. After
you've moved the shift lever into PARK (P), hold the
regular brake pedal down. Then, see if you can move the
shift lever away from PARK (P) without first pressing
and holding the button on the front of the shift lever.
If you can, it means that the shift lever wasn't fully
locked into PARK (P).
Torque Lock
If you are parking on a hill and you don't shift your
transaxle into PARK (P) properly, the weight of the
vehicle may put too much force on the parking pawl in
the transaxle. You may find it difficult to pull the shift
lever out of PARK (P). This is called ªtorque lock.º
To prevent torque lock, set the parking brake and then
shift into PARK (P) properly before you leave the
driver's seat. To find out how, see ªShifting Into
PARK (P)º in the Index.
If torque lock does occur, you may need to have
another vehicle push yours a little uphill to take some
of the pressure from the parking pawl in the transaxle,
so you can pull the shift lever out of PARK (P).

2-72 Engine Coolant Temperature Warning Light
This light tells you that
the engine coolant has
overheated. A warning
chime will sound if this
light comes on.
As a check, the light should come on for a few seconds
when you start your vehicle.
If the light comes on and the chime sounds while
you are driving, you should stop your vehicle and
turn the engine off as soon as possible. See ªEngine
Overheatingº in the Index for more information.
Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature. If the
gage pointer moves into
the shaded area, the engine
is too hot.
When the pointer is in the shaded area, that means
the same thing as when the engine coolant temperature
warning light comes on and the chime sounds.
See ªEngine Coolant Temperature Warning Lightº
previously in this section and ªEngine Overheatingº
in the Index for more information.

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.

2-87
TOP SPEED FUEL OFF - 111 : This message will
appear when the PCM senses that the maximum speed
for your vehicle has been reached. The speed of your
vehicle will decrease several mph as the fuel supply is
cut off. This allows your vehicle to stay in a stable
operating range.
TRACTION ENGAGED
- 91: When your traction
control system is limiting wheel spin, the TRACTION
ENGAGED message will be displayed. Slippery road
conditions may exist if this message is displayed, so
adjust your driving accordingly. This message will stay
on for a few seconds after the traction control system
stops limiting wheel spin.
TRACTION OFF
- 89: This message will be displayed
after the traction control has been turned off.
TRACTION READY
- 90: This message informs
the driver that the traction control system is available.
This occurs when the traction on/off button in the glove
box has been returned to ON (pressing the button once
turns the traction control system off; pressing the button
again turns the system back on). This message also
self
-cancels after five seconds.TRACTION SUSPENDED
- 56: This message
displays when the traction control system has been
temporarily shut off because your vehicle's brakes
have overheated. This message does not indicate a
problem with your vehicle's traction control system.
After a few minutes, the traction control system will be
available again and the TRACTION READY message
will appear.
TRANS FLUID RESET
- 48: With the engine not
running and the ignition on, press and hold the OFF and
rear defog buttons located on the climate control panel
until the TRANS FLUID RESET message appears on
the DIC (between five and 20 seconds).
TRANS HOT IDLE ENG
- 112: This message
indicates that the transaxle fluid in your vehicle is too
hot. Stop and allow your vehicle to idle until it cools
down or until this message is removed.
TRUNK OPEN
- 24: This message indicates that the
trunk is open when your vehicle's ignition is in RUN.

4-39 Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal flasher and/or extra wiring. Check
with your dealer. The arrows on your instrument panel
will flash whenever you signal a turn or lane change.
Properly hooked up, the trailer lamps will also flash,
telling other drivers you're about to turn, change lanes
or stop.
When towing a trailer, the arrows on your instrument
panel will flash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind you
are seeing your signal when they are not. It's important
to check occasionally to be sure the trailer bulbs are
still working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much
that they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around 45 mph (70 km/h) or less to reduce
the possibility of engine and transaxle overheating.
Parking on Hills
CAUTION:
You really should not park your vehicle, with
a trailer attached, on a hill. If something goes
wrong, your rig could start to move. People can
be injured, and both your vehicle and the trailer
can be damaged.
But if you ever have to park your rig on a hill,
here's how to do it:
1. Apply your regular brakes, but do not shift
into PARK (P).
2. Have someone place chocks behind the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) firmly and apply your parking brake.
5. Release the regular brakes.