2007 Buick Lucerne Owner's Manual - Page 209

Oil Pressure Light {CAUTION: Do not 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: Lack of proper engine oil maintenance may damage the engine. The repairs would not be covered by your warranty. Always follow the maintenance schedule in this manual for changing engine oil. This light tells you if there could be a problem with your engine oil pressure. The light goes on when you turn your key to RUN 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. 209