2002 CADILLAC DEVILLE check engine

2-96
Oil Pressure Light
CAUTION:
Don't keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
This light tells you if there
could be a problem with
your engine oil pressure.
The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That's a
check to be sure the light works. If it doesn't come on,
be sure to have it fixed so it will be there to warn you if
something goes wrong.
When the light comes on and stays on, it means that
oil isn't flowing through your engine properly. You
could be low on oil and you might have some other
system problem.

2-103
Driver Information Center (DIC) Messages
These messages will appear if there is a problem sensed in
one of your vehicle's systems. Vehicles that are first sold
in Canada will have a number after each message. This
number helps to identify the problem. You must then press
INFO or INFO RESET to clear the display screen for
further use. However, be sure to take any message that
appears on the display screen seriously and remember that
pressing the INFO or INFO RESET button will only make
the message disappear, not the problem.
DIC messages can also be displayed in French, German,
Spanish and Japanese. Contact your dealer to have the
language display adjusted for your vehicle.
BATTERY NOT CHARGING
- 7: This message
will appear if the battery is not being charged. Have the
electrical system checked by your dealership at your
earliest convenience.
BATTERY SAVER ACTIVE
- 27: This message is
displayed when the vehicle has detected that the battery
voltage is dropping beyond a reasonable point. The
battery saver system will start reducing certain features
of the vehicle that you may not be able to notice. At the
point that features are disabled, this message is
displayed. It means that the vehicle is trying to save the
charge in the battery. Turn off unnecessary accessories
to allow the battery to recharge.BATTERY VOLTAGE HIGH
- 8: This message shows
that the electrical charging system is overcharging (more
than 16 volts). To avoid being stranded, have the electrical
system checked by your dealership. You can reduce the
charging overload by using the accessories. Turn on the
lamps and radio, set the climate control on AUTO and the
fan speed on HI, and turn the rear window defogger on.
You can monitor battery voltage on the DIC by pressing
the INFO button. The normal range is 11.5 to 15.5 volts
when the engine is running.
BATTERY VOLTAGE LOW
- 6: This message
will appear when the electrical system is charging less
than 10 volts or if the battery has been drained. If this
message appears immediately after starting, it is possible
that the generator can still recharge the battery. The
battery should recharge while driving but may take a
few hours to do so. Consider using an auxiliary charger
(be sure to follow the manufacturer's instructions) to
boost the battery after returning home or to a final
destination. If this message appears while driving or
after starting your vehicle and stays on, 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 INFO button. The normal range
is 11.5 to 15.5 volts.

2-104
CHANGE ENGINE OIL - 82: This means that the life
of the engine oil has expired and it should be changed
within 200 miles. See ªEngine Oilº and ªFilter
Recommendationsº 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
- 37: This message will
display if the ignition is in ON 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 GAGE
- 50: (Analog Cluster Only)
This message will appear when the fuel supply is less
than 5 gallons (18.9 L) and the display is turned off.
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 on properly.
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 a grade. 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 checked 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 a few minutes and your vehicle is on a level surface.
Then check the dipstick and add oil if necessary.
See ªEngine Oilº in the Index.

2-105
CHECK TIRE PRESSURE - 144 :This message is
displayed when the Tire Pressure Monitor (TPM) system
detects a low or high tire pressure condition in one or
more of the road tires. By pressing the INFO button up
or down, the DIC display will show which tire or tires
do not have the correct inflation pressure. AªLOW
TIREº condition exists when the tire's air pressure is
under 25 psi (172 kPa) and a ªHIGH TIREº condition
exists when the tire's air pressure is above 38 psi
(262 kPa). The system will display the air pressure, the
tire location (LF, RF, RR or LR) and if the air pressure is
low or high. The tire pressure information is available in
English or metric measurements. For example, a driver's
side front tire that is low may be shown as: 22 PSI LF
TIRE LOW.
The correct tire inflation pressure should be set to
those shown on the Tire Loading
-Information
Label, located on the rear edge of the driver's door.
For more information regarding proper tire inflation,
seeªInflation
-- Tire Pressureº in the Index. If a tire
is low, you should stop as soon as possible and inspect
your tire(s) for damage. If a tire is flat, see ªIf a Tire
Goes Flatº in the Index.Once the TPM system detects the low or high tire
pressure condition, the message ªCHECK TIRE
PRESSUREº will be displayed whenever you start the
engine. To remove or clear the CHECK TIRE
PRESSURE message, you will need to set the tire(s) to
the proper tire pressure. See ªInflation
-- Tire Pressureº
in the Index.
CAUTION:
When the CHECK TIRE PRESSURE message is
displayed on the Driver Information Center and
the tire pressure is low, your vehicle handling
capabilities will be reduced during severe
maneuvers. If you drive too fast, you could lose
control of your vehicle. You or others could be
injured. Don't drive over 55 mph (90 km/h) when
the tire pressure is low. Drive cautiously and
correct the tire pressure as soon as you can.

2-106
CHECK WASHER FLUID - 25: This message means
that your vehicle is low on windshield washer fluid.
DRIVER DOOR AJAR
- 140: This message
will display anytime the key is in ON, the transaxle is
not in PARK (P) and the driver's door is open or ajar.
A chime will sound when the vehicle's speed is greater
than 3 mph (4.8 km/h).
DRIVER NO. X (1 OR 2): This message will be
displayed with the key in ON and while entering
FEATURE PROGRAMMING, but only if the vehicle is
equipped with memory seats. The message will show
which driver is activating the personalization feature. It
will only stay on for five seconds. This message can be
customized for you by your dealer.
ENGINE COOLANT HOT, IDLE ENGINE
- 44:
This message will appear when the engine coolant
temperature is over 262
F (128
C). Stop and allow your
vehicle to idle in PARK (P) until it cools down and the
message is removed. Do not increase engine speed
above a normal idle. 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
-AC 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. When the coolant temperature returns to
normal, the A/C operation will automatically resume.
You can continue to drive your vehicle. If this message
continues to appear, have the system repaired as soon as
possible to avoid compressor damage.
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 the vehicle is reducing engine power
because the transaxle is being placed in gear under
conditions that may cause damage to the vehicle's
engine, transaxle or ability to accelerate.
FUEL LEVEL LOW
- 11 : This message serves as a
warning that the fuel level in the tank is critically low.
Stop for fuel soon. A single chime will sound when this
message is displayed.

2-128
Oil Life Indicator
This feature lets you know when to change the engine
oil. It's based on the engine oil temperatures and your
driving patterns.To see the display, press the INFO button several times until
ENGINE OIL LIFE appears. If you see 99% ENGINE OIL
LIFE, 99 percent of your current oil life remains.
The DIC may display a CHANGE ENGINE OIL
message. Always keep a written record of the mileage and
date when you changed your oil. For more information,
see ªMaintenance Scheduleº in the Index. If you see
CHANGE ENGINE OIL, it means the oil life is gone and
you should change the oil right away. The system doesn't
check how much oil you have, so you'll still have to check
for that. To see how, see ªEngine Oilº in the Index.
When the oil is changed, you'll need to reset the system.
See ªOil Life Indicator, How to Resetº in the Index.

3-33
Cellular Phone Usage
Cellular phone usage may cause interference with your
vehicle's radio. This interference may occur when
making or receiving phone calls, charging the phone's
battery or simply having the phone ªonº. This
interference is described as an increased level of static
while listening to the radio. If you notice static while
listening to the radio, unplug the cellular phone and turn
if off.
Weather Band (If Equipped)
Weather band is restricted to speech and the audio
quality is not as good as with the AM or FM bands.
Depending on location, the radio should receive one or
two channels.
Tips About Your Audio System
Hearing damage from loud noise is almost undetectable
until it is too late. Your hearing can adapt to higher
volumes of sound. Sound that seems normal can be loud
and harmful to your hearing. Take precautions by
adjusting the volume control on your radio to a safe
sound level before your hearing adapts to it.To help avoid hearing loss or damage do the following:
1. Adjust the volume control to the lowest setting.
2. Increase volume slowly until you hear comfortably
and clearly.
NOTICE:
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two
-way radio -- be sure you can
add what you want. If you can, it's very
important to do it properly. Added sound
equipment may interfere with the operation of
your vehicle's engine, radio or other systems, and
even damage them. Your vehicle's systems may
also interfere with the operation of sound
equipment that has been added improperly.
So, before adding sound equipment, check with
your dealer and be sure to check federal rules
covering mobile radio and telephone units.

4-7
Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This is a
mistake. Your brakes may not have time to cool between
hard stops. Your brakes will wear out much faster if you
do a lot of heavy braking. If you keep pace with the
traffic and allow realistic following distances, you will
eliminate a lot of unnecessary braking. That means
better braking and longer brake life.
If your engine ever stops while you're driving, brake
normally but don't pump your brakes. If you do, the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brake System (ABS)
Your vehicle has anti-lock brakes. ABS is an advanced
electronic braking system that will help prevent a
braking skid.
When you start your engine and begin to drive away,
your anti
-lock brake system will check itself. You may
hear a momentary motor or clicking noise while this test
is going on, and you may even notice that your brake
pedal moves a little. This is normal.
If there's a problem with the
anti
-lock brake system, this
warning light will stay on.
See ªAnti
-Lock Brake
System Warning Lightº in
the Index.