Buick Century 2003 Owner's Manual page 140

Oil Pressure Light
This indicates that oil is not going through your engine
quickly enough to keep it lubricated. The engine
could be low on oil or could have some other oil
problem. Have it fixed right away.
The oil light could also come on in the following
situations:
•
The light will come on briefly when you turn on the
ignition to show you that it is working properly. If it
doesn't come on with the ignition on, you may
have a problem with the fuse or bulb. Have it fixed
right away.
3-34
If you have a problem with
your oil, this light may stay
on after you start your
engine, or come on when
you are driving.
•
Sometimes when the engine is idling at a stop, the
light may blink on and off. This is normal.
{
CAUTION:
Don't keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice: Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.