2003 Buick Rendezvous Owner's Manual - Page 201

Low Engine Oil Level Message If this message comes on and stays on after you started the engine, have the oil changed. LOW ENG OIL LEVEL United States Canada For additional information on when to change the oil and resetting the system, see Engine Oil on page 5-13. Low Tire Message If this message comes on, it means your engine is low on oil. You need to check the oil level right away. Have your vehicle serviced immediately. I United States LOW TIRE PRESSURE Canada Change Engine Oil Message CHANGE ENGINE OIL United States Canada Your vehicle may have the check tire pressure system which can alert you to a large change in the pressure of one tire. After the system has been properly calibrated, the low tire pressure message will come on and a chime will sound if a pressure difference (low pressure) is detected in one tire. The message will stay on until you turn off the ignition or reset (calibrate) the system. See Check Tire Pressure System on page 5-56. If the anti-lock brake system warning light comes on, the check tire pressure system may not be working properly. See your dealer for service. Also, see Anti-Lock Brake System Warning Light on page 1. 3-4 3-50