2000 CADILLAC DEVILLE light

2-82
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. See ªFilling Your Tankº in the Index. The
diagnostic system can determine if the fuel cap has been
left off or improperly installed. A loose or missing fuel
cap will allow fuel to evaporate into the atmosphere. A
few driving trips with the cap properly installed should
turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Are you low on fuel?
As your engine starts to run out of fuel, your engine may
not run as efficiently as designed since small amounts of
air are sucked into the fuel line causing a misfire. The
system can detect this. Adding fuel should correct this
condition. Make sure to install the fuel cap properly. See
ªFilling Your Tankº in the Index. It will take a few
driving trips to turn the light off.Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel (see
ªFuelº in the Index). Poor fuel quality will cause your
engine not to run as efficiently as designed. You may
notice this as stalling after start
-up, stalling when you
put the vehicle into gear, misfiring, hesitation on
acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the light
to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least one
full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.

2-83
Emissions Inspection and Maintenance Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
SERVICE ENGINE SOON or CHECK ENGINE light is
on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on
-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is designed
to evaluate critical emission control systems during
normal driving. This may take several days of routine
driving. If you have done this and your vehicle still does
not pass the inspection for lack of OBD system
readiness, see your dealer or qualified service center
to prepare the vehicle for inspection.
Oil Pressure Light
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. 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.

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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.

2-85
Lights On Reminder
United States Canada
This light comes on as a reminder that your headlamps
are on.
Cruise Control Light
This light comes on
whenever you set your
vehicle's cruise control.
Fuel Gage
Analog (United States) Analog (Canada)
The fuel gage shows
approximately how much
fuel is in the tank. It
works only when the
ignition is in ON.
Digital

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.

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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 also sound when
this message is displayed.
HEADLAMPS SUGGESTED
- 23: If it's dark enough
outside and the headlamps and Twilight Sentinel

controls are 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 has become dark enough
outside to require the headlamps and/or other exterior
lamps. This message will also appear if the optional
Rainsense wiping feature is on and the Twilight
Sentinel

is off.ICE POSSIBLE
- 13: This message appears when the
outside air temperature is cold enough to create icy
road conditions.
LEFT REAR DOOR AJAR
- 142: The left rear door
is open or ajar when this message appears. The ignition
must be in ON 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 3 mph (4.8 km/h).
OIL PRESSURE LOW STOP ENGINE
- 35: If this
message appears while the engine is running, stop the
engine and do not operate it until the cause of low oil
pressure is corrected. Severe damage to the engine can
result. A multiple chime will also sound when this
message is displayed.
PASSENGER DOOR AJAR
- 141: The passenger's
door is open or ajar when this message appears. The
ignition must be in ON 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
3 mph (4.8 km/h).
RIGHT REAR DOOR AJAR
- 143: The right rear
door is open or ajar when this message appears. The
ignition must be in ON 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 3 mph
(4.8 km/h).

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Vehicle Programming and Personalization
Features (If Equipped)
If your vehicle is equipped with personalization, you can
program certain features to a preferred setting for up to
two people. If your vehicle does not have
personalization then some of the features on your
vehicle have been programmed for all drivers. On all
vehicles, other features such as HVAC settings, radio
preset settings, exterior lighting at unlock, remote lock
and unlock confirmation, and automatic door locks have
already been programmed for your convenience. If the
vehicle is equipped with personalization then the seat
position, steering column position (if equipped) and
outside mirror position can also be programmed. The
Navigation screen preferences (if equipped) will remain
at the last set position.
If your vehicle is equipped with personalization the
driver's preferences are recalled by pressing the unlock
button on the remote keyless entry transmitter or by
pressing the appropriate memory button ª1º or ª2º
located on the driver's door. Please note that certain
features can be programmed not to recall until the key is
placed in the ignition. To change feature preferences you
must enter feature programming (see below).Entering Feature Programming
To begin programming, the ignition must be in ON, your
vehicle in PARK (P), and if your vehicle has memory,
you must press the appropriate memory button ª1º or
ª2º, located on the driver's door panel, prior to
programming. The display will show either ª1º or ª2º,
depending on which was selected. Press the INFO
button one or more times until the FEATURE
PROGRAMMING prompt appears on the DIC display.
Press the ON/OFF button to enter FEATURE
PROGRAMMING. To exit, press the INFO RESET or
INFO buttons.
Remote Recall Memory (If Equipped)
To enter feature programming, follow the instructions
listed previously, then press the down arrow on the
INFO button one or more times until the REMOTE
RECALL MEMORY prompt appears. To turn the
feature on, press the ON/OFF button until ON is
displayed on the DIC. The seat and mirror memory
settings that have been previously programmed can be
recalled by pressing the unlock button on the remote
keyless entry transmitter. The steering column will
move when the key is inserted in the ignition and turned
to ON. To turn the feature off, press the ON/OFF button
until OFF is displayed.

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Lights Flash at Unlock
To enter feature programming follow the instructions
listed previously, then press the down arrow on the
INFO button one or more times until the LIGHTS
FLASH AT UNLOCK prompt appears. To turn this
feature on, press the ON/OFF button until ON is
displayed on the DIC. If all the doors are closed, the
parking lamps will flash twice when the unlock button
on the remote keyless entry transmitter is pressed. The
lamps will not flash if the manual parking lamps or
headlamps are active. To turn the feature off, press the
ON/OFF button until the OFF prompt appears.
Lights Flash at Lock
To enter feature programming, follow the instructions
listed previously, then press the down arrow on the
INFO button one or more times until the LIGHTS
FLASH AT LOCK prompt appears on the DIC display.
To turn the feature on, press the ON/OFF button until
ON appears. If all the doors are closed, the parking
lamps will flash once when the lock button on the
remote keyless entry transmitter is pressed. To turn the
feature off, press the ON/OFF button until OFF appears.
This feature will not work if any door is open.Horn Sounds at Lock
To enter feature programming follow the instructions
listed previously, then press the down arrow on the
INFO button one or more times until the HORN
SOUNDS AT LOCK prompt appears on the DIC
display. To turn the feature on, press the ON/OFF button
until ON appears. If all the doors are closed, the horn
will sound once when the lock button on the remote
keyless entry transmitter is pressed. To turn the feature
off, press the ON/OFF button until OFF appears.
This feature will not work if any door is open.
Exterior Lights at Unlock
This personalization feature enables the driver to
program the exterior lamps to turn on or to remain off
when using the remote keyless entry transmitter to
unlock the vehicle.
During dark or night conditions, if exterior lighting is
selected, the parking lamps, taillamps, reverse lamps,
high
-beam headlamps, etc. will turn on for about
20 seconds or until a door is opened, the key is turned
out of OFF or the remote keyless entry transmitter is
used to lock the vehicle.