Buick regal 2001 Manual De Usuario

If your fuel is low, a circular light on your instrument
panel cluster will come on and stay on and a chime will
sound periodically until you add fuel.

It will also come on for a few seconds when you first
turn on the ignition as a check to show you it’s working.
If it doesn’t come on then, have it fixed.

The Driver Information Center (DIC), located below the
tachometer on the instrument panel cluster, gives you
important safety and maintenance facts. When you 
turn the ignition on, the entire center lights up for just 
a few seconds.