2000 CADILLAC DEVILLE oil change

2-87
The RANGE display shows how far the computer thinks
you can travel with the fuel that is in the tank. The
computer does not know what driving conditions will be
like for the rest of your trip, so the range is estimated
based on the recent fuel economy. Therefore, the range
reading may change as your driving habits change.
Going from city to highway driving may increase the
range reading.
If the range display shows LO, you should stop for fuel
as soon as possible.
On the analog cluster, fuel data can be obtained by
pressing the INFO button. See ªDriver Information
Centerº in the Index.
Driver Information Center (DIC)
This display gives you the status of many of your
vehicle's systems. The DIC is also used to display driver
personalization features and warning/status messages.
DIC Controls and Displays
INFO: Pressing this button up or down will display the
MILES RANGE (Analog Cluster), MPG AVG, MPG
INST, GAL FUEL USED, AVG MPH, TIMER,
BATTERY VOLTS, RPM TACHOMETER (Digital
Cluster), ENGINE OIL LIFE, TRANS FLUID LIFE,
PHONE (If Equipped), FEATURE PROGRAMMING
and Blank Display.

2-88
INFO RESET: Pressing this button will reset the
MPG AVG, GAL FUEL USED, MPH AVG, TIMER,
ENGINE OIL LIFE, TRANS FLUID LIFE, when each
mode is individually selected. For more information
about the trip odometer, see ªOdometerº in the Index.
ON/OFF: In feature programming mode, pressing this
button turns the Memory and Personalization Features
on and off and starts and stops the timer.
MILES RANGE: (Analog Cluster Only.) This message
shows about how many miles you can drive without
refilling your fuel tank. Once the range drops below 40
miles (64 km) remaining, the display will show LOW.
MPG AVG (Reset): Press the INFO button to display
the MPG AVG (Average Fuel Economy).
GAL FUEL USED (Reset): Press the INFO button to
display the GAL FUEL USED on the DIC.
AVG MPH (Reset): Press the INFO button to display
the AVG MPH (Average Speed).
TIMER: This feature is like a stopwatch, in that you
can clock the time it takes to get from one point
to another.
To operate, press the INFO button to display TIMER.
Each of the fields for the hours, minutes and seconds are
two numeric digits.Once TIMER 00:00:00 is displayed, press the ON/OFF
button to start the timing feature. Press the ON/OFF
button again to stop it. If you will be starting and
stopping your vehicle, during a trip for instance, the
TIMER feature will automatically start timing where it
left off when you last stopped. To reset it, press and hold
the INFO RESET button until the display reads TIMER
00:00:00. Press the INFO button to exit from the
TIMER Display.
ENGINE OIL LIFE (Reset): Press the INFO button to
display ENGINE OIL LIFE, then press and hold the
INFO RESET button until 100% ENGINE OIL LIFE is
displayed. (This only needs to be reset after you have
had the oil changed.)
TRANSMISSION FLUID LIFE MONITOR: Under
normal conditions, the rate of deterioration of the
transmission fluid is slow. See the Maintenance
Schedule booklet for proper fluid and change intervals.
Press the INFO button to display TRANS FLUID LIFE,
then press and hold the INFO RESET button until 100%
TRANS FLUID LIFE is displayed. (This only needs to
be reset after you have had the fluid changed.)
ENG/MET: Press this button to display information in
the English (miles) or metric (kilometers) system.

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.

2-101
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.

5-9
NOTICE:
Use the proper towing equipment to avoid
damage to the bumper, fascia or fog lamp areas
of the vehicle.
With current trends in automotive styles and design, it is
essential that the correct towing equipment is used to
tow a vehicle. Your vehicle can be towed with wheel lift
or car carrier equipment.
Consult your dealer or a professional towing service if
you need to have your vehicle towed. See ªRoadside
Assistanceº in the Index.
Engine Overheating
You will find an ENGINE COOLANT HOT, IDLE
ENGINE message or an ENGINE OVERHEATED,
STOP ENGINE message on the Driver Information
Center (DIC). You will also hear a chime. There is also
an engine temperature warning light and/or gage on the
instrument panel. See ªEngine Coolant Temperature
Warning Lightº or ªEngine Coolant Temperature Gageº
in the Index.
Overheated Engine Protection
Operating Mode
Should an overheated engine condition exist and the
message ENGINE OVERHEATED, STOP ENGINE is
displayed, an overheat protection mode which alternates
firing groups of cylinders helps prevent engine damage.
In this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle
to be driven to a safe place in an emergency; you may
drive up to 50 miles (80 km). Towing a trailer in the
overheat protection mode should be avoided.
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and
reset the oil life indicator. See ªEngine Oilº in
the Index.

5-25
8. Remove any rust or dirt
from the wheel bolts,
mounting surfaces and
spare wheel.
CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could come
off and cause an accident. When you change a
wheel, remove any rust or dirt from the places
where the wheel attaches to the vehicle. In an
emergency, you can use a cloth or a paper towel
to do this; but be sure to use a scraper or wire
brush later, if you need to, to get all the rust or
dirt off.
CAUTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel could
fall off, causing a serious accident.
9. Place the spare tire on the wheel-mounting surface.

6-14 What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the starburst symbol.
This symbol indicates that the oil has been certified by
the American Petroleum Institute (API). Do not use any
oil which does not carry this starburst symbol.
If you change your own oil, be sure you use oil that has
the starburst symbol on the front of the oil container. If
you have your oil changed for you, be sure the oil put
into your engine is American Petroleum Institute
certified for gasoline engines.
You should also use the proper viscosity oil for
your vehicle, as shown in the following chart:

6-15
As shown in the chart, SAE 5W-30 is best for your
vehicle. However, you can use SAE 10W
-30 if it's going
to be 0F (
-18C) or above. These numbers on an oil
container show its viscosity, or thickness. Do not use
other viscosity oils, such as SAE 20W
-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
starburst symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench
oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20F (-29C), consider using either an SAE 5W-30
synthetic oil or an SAE 0W
-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are all you will need for good
performance and engine protection.
When to Change Engine Oil
Your vehicle has a computer that lets you know when to
change your engine oil. This is not based on mileage,
but on engine revolutions and engine operating
temperature. When the computer has calculated that the
oil needs changing, the GM Oil Life System will
indicate that a change is necessary. The mileage between
oil and filter changes will vary depending on how you
drive your vehicle
-- usually between 3,000 miles
(5 000 km) and 10,000 miles (16 000 km) since your
last oil and filter change. Under severe conditions, the
system may come on before 3,000 miles (5 000 km).
Never drive your vehicle more than 10,000 miles
(16 000 km) or 12 months (whichever occurs first)
without an oil change.
The system won't detect dust in the oil. So, if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner. Remember to
reset the Oil Life Indicator whenever the oil is changed.