2000 CADILLAC ELDORADO service

2-65
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.

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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 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 RUN 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.

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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.
Fuel Gage
The fuel gage shows
approximately how much
fuel is in the tank. It works
only when the ignition is
in RUN.
Here are a few concerns some owners have had about
the fuel gage. All of these situations are normal and do
not indicate that anything is wrong with the fuel gage.

At the gas station the gas pump shuts off before the
gage reads F.

It takes more (or less) gas to fill the tank than the
gage said. For example, the gage read half a tank,
but it took more (or less) than the tank's remaining
capacity to fill it.

The gage may change when you turn, stop or
speed up.

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If this message appears and stays on while driving or
after starting your vehicle, 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 (SKIP) button. The normal range
is 11.5 to 15.5 volts.
BRAKE VACUUM PROBLEM
-108: The circuit in
the brake booster vacuum has shorted or is loose when
this message appears. Your vehicle may lose power
brakes but you will still have the use of manual brakes.
The power brakes will not be affected if the problem is
caused by a failed sensor. Have your vehicle serviced
immediately at your dealership.
CHANGE ENGINE OIL
- 82: This means that the life
of the engine oil has expired and it should be changed
within 200 miles (322 km). 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 LEVEL
- 37: This message
will display if the ignition is in RUN 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 GAUGE
- 39: This message will
appear when the fuel supply is less than 3.5 gallons
(13.2 L) remaining and the display is turned off (digital
clusters only). 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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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 five 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 for several seconds indicating that you need
windshield washer solvent.
CRUISE ENGAGED
- 43: This message will appear
for a few seconds when you select a speed at which
to cruise.
DOOR AJAR
- 141: A door other than the driver's
is open or ajar when this message appears. The vehicle's
engine must be running 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
5 mph (8 km/h).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.

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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 you that your 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).ICE POSSIBLE
- 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.
LOW REFRIG A/C OFF
- 12: This message means
that the air conditioning system detects a refrigerant
level that is low enough to cause damage to the air
conditioning compressor. Have the air conditioning
system serviced if this message appears.
MONITORED SYSTEMS OK
- 1: This message only
appears in the ªrecallº mode by pressing the INFO
RESET (NO) button. It lets you know that no other
messages are stored or currently active.
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.
OPTIONS NOT SET
- 99: This message will display if
a fault has occurred in your vehicle's memory. Have
your vehicle serviced by your dealership.
PROGRAM PASS KEY
- 31: This warning message
displays when the PASS
-Key
II pellet information has
not been programmed into your vehicle. See your
dealership for service.

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PHONE NOT PRESENT - 126: This message will
appear when the steering wheel controls for the optional
phone system are activated but the phone is not plugged
into the vehicle. Make sure your phone is plugged in.
If your phone appears to be connected, see your
dealership for service.
REMOVE KEY
- 70: This message will appear
when the Personalized Automotive Security System
(PASS
-Key
II) is unable to read the pellet on the
ignition key or an improper key pellet has been inserted.
This message usually appears following the display of
STARTING DISABLED REMOVE KEY. The
instrument panel cluster will then run a timer and
change the messages to WAIT 3 MINUTES, WAIT 2
MINUTES, WAIT 1 MINUTE and then START CAR.
When the REMOVE KEY message is displayed, remove
the ignition key. Check the ignition key for damage. If it
is damaged, it may need to be replaced. If you see no
damage, clean the pellet contacts with a soft cloth or
napkin before inserting the key back into the ignition.
Have your vehicle serviced if the message still appears.
SERVICE A/C 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
Supplemental Inflatable Restraint (air bag) system when
this message appears. Let only a qualified technician work
on your vehicle. See your dealership for service at once.
SERVICE BRAKE FLUID SWITCH
- 37: A problem
in the brake fluid detection circuit causes this message
to display if the ignition is in RUN. Have the brake
system serviced by a technician as soon as possible. If
the brake warning light is on, refer to the directions
listed in that part.
SERVICE CHARGING SYSTEM
- 102: This
message will display when a problem with the charging
system has been detected. Have your vehicle serviced at
your dealership.
SERVICE ELECTRIC SYS
- 106: This message will
display if an electrical problem has occurred within the
Powertrain Control Module (PCM). Have your vehicle
serviced by your dealership.
SERVICE FUEL SYSTEM
- 101: The PCM has
detected a problem within the fuel system when this
message appears. See your dealership for service.
SERVICE IDLE CONTROL
- 107: A problem with
the idle control has occurred when this message displays.
Drive your vehicle to the dealership for service.

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SERVICE RIDE 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 STEERING SYS
- 127: This message is
displayed when a problem has been detected in the
Magnasteer

variable effort steering system. Service is
required. A single chime will also sound when this
message is displayed.
SERVICE TRANSMISSION
- 100: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.
SERVICE VEHICLE SOON
- 3: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.
SERV STABILITY SYS
- 54: If you ever see the
SERV STABILITY SYS message, it means there may
be a problem with your stability enhancement system.
If you see this message, try to reset the system
(stop; turn off the engine; then start the engine again).
If the SERV STABILITY SYS message still comes on,
it means there is a problem. You should see your dealer
for service. Reduce your speed and drive accordingly.
A single chime will also sound when this message
is displayed.STABILITY ENGAGED
- 55: You may see the
STABILITY ENGAGED message on the Driver
Information Center. It means that an advanced,
computer
-controlled system has come on to help your
vehicle continue to go in the direction in which you're
steering. This stability enhancement system activates
when the computer senses that your vehicle is just
starting to spin, as it might if you hit a patch of ice or
other slippery spot on the road. When the system is on,
you may hear a noise or feel a vibration in the brake
pedal. This is normal.
When the STABILITY 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
ENGAGED message comes on, you'll know that
something has caused your vehicle to start to spin,
so you should consider slowing down.