Security Light; Fog Lamp Light - Cadillac 2004 DeVille Owner's Manual

The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That is a
check to be sure the light works. If it does not 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
is not flowing through your engine properly. You
could be low on oil and you might have some other
system problem.
3-56
This light tells you if there
could be a problem with
your engine oil pressure.

Security Light

Fog Lamp Light

For more information about the fog lamps, see "Fog
Lamps" under Exterior Lamps on page 3-16.
For information regarding
this light, see
Theft-Deterrent Systems
on page 2-20.
This light will come on
when the fog lamps are in
use. It will go out when the
fog lamps are turned off.