1999 CADILLAC DEVILLE engine overheat

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The 1999 Cadillac DeVille Owner's Manual
1-1 Seats and Restraint SystemsThis section tells you how to use your seats and safety belts properly. It also explains the ªSIRº system.
2-1 Features and ControlsThis section explains how to start and operate your vehicle.
3-1 Comfort Controls and Audio SystemsThis section tells you how to adjust the ventilation and comfort controls and how to operate your audio system.
4-1 Your Driving and the RoadHere you'll find helpful information and tips about the road and how to drive under different conditions.
5-1 Problems on the RoadThis section tells you what to do if you have a problem while driving, such as a flat tire or overheated engine, etc.
6-1 Service and Appearance CareHere the manual tells you how to keep your vehicle running properly and looking good.
7-1 Customer Assistance InformationThis section tells you how to contact Cadillac for assistance and how to get service and owner publications.
It also gives you information on ªReporting Safety Defectsº on page 7-10.
8-1 IndexHere's an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.

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2-22 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
11 0
-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.

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2-26
FIRST (1): This position gives you even more power
than SECOND (2). You can use it on very steep hills,
or in deep snow or mud. (If the shift lever is put in
FIRST (1), the transaxle won't shift into gear until the
vehicle is going slowly enough.)
NOTICE:
If your front wheels can't rotate, don't try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against a solid
object. You could damage your transaxle.
Also, if you stop when going uphill, don't hold
your vehicle there with only the accelerator
pedal. This could cause overheating and damage
the transaxle. Use your brakes to hold your
vehicle in position on a hill.
Parking Brake
Hold the regular brake
pedal down with your right
foot and push the parking
brake pedal down with your
left foot to set the parking
brake. If the ignition is on,
the PARK BRAKE
indicator light should come
on. If it doesn't, you need to
have your vehicle serviced.
If the parking brake has not been fully released and you
try to drive off with the parking brake on, the PARK
BRAKE indicator light comes on and stays on. See
ªParking Brake Indicator 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.

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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 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.
Shifting Into PARK (P)
CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll. If
you have left the engine running, the vehicle can
move suddenly. You or others could be injured.
To be sure your vehicle won't move, even when
you're on fairly level ground, use the steps that
follow. If you're pulling a trailer, see ªTowing a
Trailerº in the Index.

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2-30 Console Shift Lever
1. Hold the brake pedal down with your right foot.
2. Move the shift lever into PARK (P) by holding in the
button on the shift lever and pushing the shift lever
all the way toward the front of the vehicle.
3. With your right foot still holding the brake pedal
down, set the parking brake.
4. Turn the ignition key to LOCK.
5. Remove the key and take it with you. If you can
leave your vehicle with the ignition key in your
hand, your vehicle is in PARK (P).
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 pulling it
toward you (or, if you have the console shift lever,
without first pressing the button). If you can, it means
that the shift lever wasn't fully locked into PARK (P).

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2-72 Traction Control System Warning Light
This warning light should
come on briefly as you start
the engine. If the warning
light doesn't come on then,
have it fixed so it will be
ready to warn you if there's
a problem.
If it stays on, or comes on when you're driving, there
may be a problem with your traction control system and
your vehicle may need service. When this warning light
is on, the system will not limit wheel spin. Adjust your
driving accordingly.
The traction control system warning light may come on
for the following reasons:

If there's a brake system problem that is specifically
related to traction control, the traction control system
will turn off and the warning light will come on.

If the traction control system is affected by an
engine
-related problem, the system will turn off and
the warning light will come on.If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
Engine Coolant Temperature
Warning Light
This light tells you that your
engine has overheated. You
should stop your vehicle
and turn the engine off as
soon as possible. A warning
chime should also sound if
this light comes on.
As a check, the light should come on for a few seconds
when you start your engine. See ªEngine Overheatingº
in the Index.

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2-73 Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature. If
the gage pointer moves into
the red area, the engine is
too hot.
Analog Cluster
That reading means the same thing as the warning
light
-- the engine coolant has overheated. See
ªEngine Overheatingº in the Index.
Malfunction Indicator Lamp
(Service Engine Soon Light)
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On
-Board
Diagnostics
-Second Generation) and is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE SOON light
comes on and a chime will sound to indicate that there is
a problem and service is required. Malfunctions often
will be indicated by the system before any problem is
apparent. This may prevent more serious damage to
your vehicle. This system is also designed to assist
your service technician in correctly diagnosing
any malfunction.

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2-85
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.
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 the driver that their 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 the Twilight Sentinel
control 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).