2004 Buick Rendezvous Owner's Manual - Page 193

When the engine is running and this message appears, the engine oil level may be too low. There may also be another problem causing low oil pressure. Change Engine Oil Message {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. United States Canada If this message comes on and stays on after you started the engine, have the oil changed. For additional information on when to change the oil and resetting the system, see Engine Oil on page 5-14. 3-53