Cadillac 2002 DeVille Owner's Manual page 172

CHANGE ENGINE OIL
of the engine oil has expired and it should be changed
within 200 miles. See "Engine Oil" and "Filter
Recommendations" in the Index. After an oil change,
the Oil Life Indicator must be reset. See "Oil Life
Indicator, How to Reset" in the Index.
CHANGE TRANS FLUID
appear when it is time to replace the transaxle fluid. See
"Maintenance Schedule" in the Index for the proper
fluid and change intervals.
CHECK BRAKE FLUID
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 "Brake
System Warning Light" in the Index.
CHECK COOLANT LEVEL
will appear when there is a low level of engine coolant.
Have the cooling system serviced by a technician as
soon as possible.
2-104
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82: This means that the life
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47: This message will
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37: This message will
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2: This message
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CHECK FUEL GAGE
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.
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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.
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CHECK OIL LEVEL
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 "Engine Oil" in the Index.
50: (Analog Cluster Only)
36: For correct operation of