2004 Buick Regal Owner's Manual - Page 140

Low Fuel Warning Light Driver Information Center (DIC) If the vehicle has a Driver Information Center (DIC), it is located below the tachometer on the instrument panel cluster. The DIC gives important safety and maintenance facts. When the ignition is turned on, the entire center lights up for just a few seconds. United States Canada If the vehicle's fuel is low, a circular light on the instrument panel cluster will come on and a chime will sound periodically until fuel is added to the fuel tank. It will also come on for a few seconds when the ignition is turned on as a check to indicate it is working. If it does not come on then, have it fixed. 3800 V6 Engine 3-42