2002 Buick LeSabre Owner's Manual - Page 143

When this light comes on and stays on, and a chime sounds, it means oil isn't going through the engine properly. The oil could be low, or there might be some other oil problem. See your dealer for service. Service Vehicle Soon Light This light will come on and stay on if your vehicle has certain non-emission related problems. 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. These problems may not be obvious and may affect vehicle performance or durability. Consult a qualified dealership for necessary repairs to maintain top vehicle performance. This light will come on briefly when the ignition is turned on to show that it is working properly. Security Light NOTICE: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. Your vehicle may have a content theft-deterrent alarm system. With this system, the SECURITY light will flash as you open the door (if your ignition is off). For more information see "Content Theft-Deterrent" in the Index. 2-80