2000 CADILLAC DEVILLE check engine

2-84
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.
Security Light
For information regarding
this light, see ªTheft
Deterrent
-Systemº in
the Index.
Fog Lamp Light (If Equipped)
This light will come on
when the fog lamp button
is pressed. For more
information about the fog
lamps, see ªFog Lampsº in
the Index.

2-89
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
note that pressing the INFO or INFO RESET button will
only make the message disappear, not the problem.
Most messages can be removed from the display by
pressing the INFORMATION or RESET Digital Control
buttons, (if equipped) or by pressing the INFO RESET
or INFO Analog Control buttons (if equipped) while the
message is being displayed.
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.

2-90
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.
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 Maintenance Schedule
booklet. 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
the Maintenance Schedule booklet 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 fully tightened.

2-91
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 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.
CHECK WASHER FLUID
- 25: This message will
appear to indicate that the washer solvent container
needs refilling.
DRIVER DOOR AJAR
- 140: This message will
display anytime the key is in ON and the driver's door is
open or ajar. A chime will also 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.

2-94
When the STABILITY SYS ENGAGED message is on,
you should continue to steer in the direction you want to
go. The system is designed to help you in bad weather or
other difficult driving situations by making the most of
whatever road conditions will permit. If the STABILITY
SYS ENGAGED message comes on, you'll know that
something has caused your vehicle to start to spin, so
you should consider slowing down. A single chime will
also sound when this message is displayed.
SERVICE STEERING
- 127: This message is
displayed when a problem has been detected in the
Magnasteer

variable effort steering system. If message
comes on, service is required.
SERVICE SUSPENSION SYS
- 84: This message is
displayed to indicate that the suspension system is not
operating properly. To correct this problem, have your
vehicle serviced at your dealership.
SERVICE THEFT SYSTEM
- 34: This message
means there is a problem in the Personalized
Automotive Security System (PASS
-Key
III). A fault
has been detected in the system which means that the
PASS
-Key III system is disabled and is not protecting
the vehicle. The vehicle usually restarts, however, you
may want to take your vehicle to a proper service center
before turning off the engine.SERVICE TRANSMISSION
- 100: See your dealer
for repair.
SERVICE VEHICLE SOON
- 3: This message is
displayed when a non
-emissions related powertrain
malfunction occurs. Have your vehicle serviced by a
technician as soon as possible.
SPEED LIMITED TO 90
- 113: A failure in the
suspension control system has occurred when this
message appears. The Powertrain Control Module
(PCM) determines the speed to which your vehicle
is limited. Have your vehicle serviced if this
message appears.
STARTING DISABLED REMOVE KEY
- 33: This
message will appear when the Personalized Automotive
Security System (PASS
-Key
III) senses that an
improper ignition key is being used to try to start the
vehicle. Check the ignition key for damage. If it is
damaged, it may need to be replaced. If you see no
damage, remove the key and try to start the vehicle
again. If it still does not start, try another ignition key.
THEFT ATTEMPTED
- 40: This message is
displayed if the theft system has detected a break
-in
attempt while you were away from your vehicle.

2-101
Comfort Controls and Radio System Personalization
These features allow both drivers to personalize their
own climate control settings as well as their radio
settings. For more information, see ªClimate Control
Personalizationº and ªRadio Personalizationº in
the Index.
Continuous Variable Road Sensing Suspension
(CVRSS) (If Equipped)
The CVRSS automatically adjusts the ride of your
vehicle. Automatic ride control is achieved through a
computer used to control and monitor the suspension
system. The controller receives input from various
sensors to determine the proper system response. If the
controller detects a problem within the system, the DIC
will display a SERVICE SUSPENSION SYS message.
If this message appears, have your vehicle serviced at
your dealership.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 the Maintenance Schedule booklet. 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.

3-5
DEFROST: Press this button to quickly remove
fog or frost from the windshield. This setting sends most
of the airflow to the windshield with only a small
amount to the floor outlets.
FAN SPEEDS: Press the AUTO. At this setting,
the fan speed is automatically controlled. If it is cold
outside, the blower may not run in the maximum high
fan speed right away. The system checks the
temperature of the engine coolant to assure it is warm
enough to provide heat. When the engine coolant is
warm, the controller allows the fan to gradually increase
to a higher speed. This prevents cold air from blowing
into the passenger compartment.
OFF: Press the knob to turn the system off. Fresh
air will continue to flow through the vehicle, and the
system will try to maintain the previously set
temperature. The outside temperature will show on
the display when the system is OFF.AC: Press this button to turn the air conditioning on and
off. The system will cool and dehumidify the air inside
the vehicle. In the AUTO mode the air conditioning
compressor only operates when the system determines it
is needed. The display will show A/C OFF when the air
conditioning is off.
RECIRCULATION: Press this button to limit the
amount of fresh air entering your vehicle. This is helpful
when you are trying to cool the air quickly or limit odors
entering your vehicle. In the AUTO mode, the system
will use recirculation as necessary to cool the air.
Pressing the recirculation button will change the
operation to a manual mode and the air will recirculate
non
-stop. Press this button again to turn off the
recirculation feature.
If you notice the windows fogging, press the
recirculation button to exit the recirculation mode.

3-46
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.
Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren't, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN or
CLEAN TAPE to indicate that you have used your tape
player for 50 hours without resetting the tape clean
timer. If this message appears on the display, your
cassette tape player needs to be cleaned. It will still play
tapes, but you should clean it as soon as possible to
prevent damage to your tapes and player. If you notice a
reduction in sound quality, try a known good cassette to
see if it is the tape or the tape player at fault. If this other
cassette has no improvement in sound quality, clean the
tape player.
The recommended cleaning method for your cassette
tape player is the use of a scrubbing action,
non
-abrasive cleaning cassette with pads which scrub
the tape head as the hubs of the cleaner cassette turn.
The recommended cleaning cassette is available through
your dealership (GM Part No. 12344789).