light CADILLAC DEVILLE 2002 8.G Workshop Manual

2-95
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.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.

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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.

2-97
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 lamps are in
use. It will go out when the
fog lamps are turned off.
For more information about
the fog lamps, see ªFog
Lampsº in the Index.
Lights On Reminder
United States Canada
(Analog Only)
This light comes on whenever the parking lamps are on
so that you know that your exterior lamps are on.
Cruise Control Light
This light comes on
whenever the cruise control
system is in use. It will go
out when the system is
turned off. See ªCruise
Controlº in the Index for
more information.

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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.

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HEADLAMPS SUGGESTED - 23: If it's dark enough
outside and the headlamps and Twilight Sentinel

controls are off, this message will display on the DIC.
This message informs the driver that turning on the
exterior lamps is recommended even though the 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 sound if the
vehicle's speed is greater than 3 mph (5 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 sound when this message
is displayed.PASSENGER DOOR AJAR
- 141: The right
front 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 sound if the vehicle's speed is greater
than 3 mph (5 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 sound if the vehicle's speed is greater than
3 mph (5 km/h).
SERVICE AC SYSTEM
- 14: This message appears
when the electronic sensors that control the air
conditioning and heating systems are no longer working.
Have the climate control system serviced if you notice a
drop in heating and air conditioning efficiency.
SERVICE AIR BAG
- 83: There is a problem with the
air bag system when this message appears. Let only a
qualified technician work on your vehicle. Have your
vehicle serviced by your dealership immediately.
SERVICE CHARGING SYS
- 102: This message
will display when a problem with the charging system
has been detected. Have your vehicle serviced at
your dealership.

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Vehicle Programming and
Personalization Features
Your vehicle is equipped with personalization that
allows you to program certain features to a preferred
setting for up to two people. The number of
programmable features varies depending upon which
model of the vehicle is purchased. On all vehicles,
features such as climate control settings, radio preset
settings, exterior lighting at unlock, remote lock and
unlock confirmation, and automatic door locks have
already been programmed for your convenience.
Some vehicles are equipped with additional features
that can be programmed including the seat position,
steering column position (if equipped) and outside
mirror position. The navigation screen preferences
(if equipped) will remain at the last set position.
If your vehicle is equipped with the ability to program
additional personalization features, the driver's
preferences are recalled by pressing the unlock button
on the remote keyless entry transmitter or by pressing
the appropriate memory button, 1 or 2, located on the
driver's door. Certain features can be programmed not
to recall until the key is placed in the ignition. To change
feature preferences you must use one of the
following procedures.Entering Feature Programming
To enter the feature programming mode, do
the following:
1. Turn the ignition to ON, making sure the vehicle is
in PARK (P).
2. If your vehicle has memory settings, press the
appropriate memory button, 1 or 2, located on
the driver's door panel. The DIC display will
show either 1 or 2 depending on which button
was selected.
3. Press the INFO button until FEATURE
PROGRAMMING appears on the DIC display.
4. Press the ON/OFF button to enter
FEATURE PROGRAMMING.

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Lights Flash at Unlock
This feature allows the parking lamps to flash
twice when the remote keyless entry transmitter is used
to unlock the vehicle. All doors must be closed, and the
lamps will not flash if the manual parking lamps or
headlamps are active.
Programmable Modes
Mode 1: ON
Mode 2: OFFBefore your vehicle was shipped from the factory, it was
programmed to Mode 1. The mode to which the vehicle
was programmed may have been changed since it left
the factory. To determine the mode to which the vehicle
is programmed or to program the vehicle to a different
mode, do the following:
1. Enter FEATURE PROGRAMMING following the
instructions listed previously.
2. Press the down arrow on the INFO button until
LIGHTS FLASH AT UNLOCK appears on the
DIC display.
3. To turn on the feature, press the ON/OFF button
until ON appears on the DIC display. To turn it
off, press the ON/OFF button until OFF appears
on the display.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.

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Lights Flash at Lock
This feature allows the parking lamps to flash once
when the remote keyless entry transmitter is used to lock
the vehicle. All doors must be closed for this feature to
work, and the lamps will not flash if the manual parking
lamps or headlamps are active.
Programmable Modes
Mode 1: ON
Mode 2: OFFBefore your vehicle was shipped from the factory, it was
programmed to Mode 1. The mode to which the vehicle
was programmed may have been changed since it left
the factory. To determine the mode to which the vehicle
is programmed or to program the vehicle to a different
mode, do the following:
1. Enter FEATURE PROGRAMMING following the
instructions listed previously.
2. Press the down arrow on the INFO button until
LIGHTS FLASH AT LOCK appears on the
DIC display.
3. To turn on the feature, press the ON/OFF button
until ON appears on the DIC display. To turn it off,
press the ON/OFF button until OFF appears on
the display.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.

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Exterior Lights at Unlock
This feature turns on the exterior lamps when the remote
keyless entry transmitter is used to unlock the vehicle.
The lamps will remain on for about 20 seconds unless a
door is opened, the ignition is turned to ACCESSORY,
ON or START or the remote keyless entry transmitter is
used to lock the vehicle.
Programmable Modes
Mode 1: ON
Mode 2: OFFBefore your vehicle was shipped from the factory, it was
programmed to Mode 1. The mode to which the vehicle
was programmed may have been changed since it left
the factory. To determine the mode to which the vehicle
is programmed or to program the vehicle to a different
mode, do the following:
1. Enter FEATURE PROGRAMMING following the
instructions listed previously.
2. Press the down arrow on the INFO button until EXT
LIGHTS AT UNLOCK appears on the DIC display.
3. To turn on the feature, press the ON/OFF button
until ON appears on the DIC display. To turn it
off, press the ON/OFF button until OFF appears
on the display.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.

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The controls for this feature are located to the left of and
below the steering wheel. They are used to adjust the
brightness and location of the image. Adjust the IMAGE
control so the image is as low as possible while
remaining visible.
Slide the dimmer control until the image is no brighter
than necessary to clearly and comfortably see the image.When the system comes on, you'll see the Night Vision
System symbol in the image. After about one minute,
you should see the view of the road ahead. If you don't
see the image after about two minutes (on cold days it
may take longer for the image to display), there may be
something wrong with the system. See your dealer
for service.
CAUTION:
If the Night Vision System image is too bright, or
too high in your field of view, it may take you
more time to see things you need to see when it's
dark outside. Be sure to keep the image dim and
placed low in your field of view.
Remember that the Night Vision System can only help
you see objects that are warmer or colder than the
surroundings. It can't sense things like brake lights, turn
signals or emergency flashers, traffic lights or signs.