Cadillac 2002 DeVille Owner's Manual page 137

The accessory power outlet will only operate when the
ignition is in ACCESSORY or ON and for 10 minutes
after turning the ignition OFF. If you would like the
accessory power outlet to operate regardless of ignition
position, and for extended periods of time, see your
dealer for more information.
NOTICE:
When using accessory power outlets:
D
Maximum load of any electrical equipment
should not exceed the maximum amperage
for the outlet.
D
Be sure to turn off any electrical equipment
when not in use. Leaving electrical
equipment on for extended periods can
drain the battery.
Certain accessory power plugs may not be compatible to
the accessory power outlet and could result in blown
vehicle or adapter fuses. If you experience a problem see
your dealer for additional information on the accessory
power outlets.
NOTICE:
Adding some electrical equipment to your vehicle
can damage it or keep other things from working
as they should. This wouldn't be covered by your
warranty. Check with your dealer before adding
electrical equipment, and never use anything that
exceeds the fuse rating.
Follow the proper installation instructions that are
included with any electrical equipment you install.
NOTICE:
Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or
accessory bracket from the plug. Improper use of
the accessory power outlets can cause damage not
covered by your warranty.
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