Cadillac 2004 DeVille Owner's Manual page 189

BATTERY VOLTAGE HIGH – 8: This message shows
that the electrical charging system is overcharging (more
than 16 volts). To avoid being stranded, have the
electrical system checked by your dealership. You can
reduce the charging overload by using the accessories.
Turn on the lamps and radio, set the climate control on
AUTO and the fan speed on HI, and turn the rear window
defogger on. You can monitor battery voltage on the DIC
by pressing the INFO button. The normal range is
11.5 to 15.5 volts when the engine is running.
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. After an oil change, the Oil Life
Indicator must be reset. See Oil Life Indicator on
page 3-80. See Engine Oil on page 5-14.
CHANGE TRANS FLUID – 47: This message will
appear when it is time to change the transaxle fluid.
See Scheduled Maintenance on page 6-4 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 Brake
System Warning and Parking Brake Indicator Light on
page 3-48.
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. See Engine Coolant on page 5-25.
CHECK FUEL GAGE – 50: (Analog Cluster) 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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