If your vehicle is equipped with an oil level monitoring system, the LOW OIL light will come on briefly when the ignition key is turned on.

If the light does not come on briefly, have it fixed so it will be ready to warn you if there's a problem.

If the light stays on, stop the vehicle on a level surface and turn the engine off. Check the oil level using the engine oil dipstick. See Engine Oil . If the light does not come on briefly, have the low oil level sensor system repaired so it will be ready to warn you if there's a problem.

The oil level monitoring system only checks oil level during the brief period between key on and engine crank. It does not monitor engine oil level when the engine is running. Additionally, an oil level check is only performed if the engine has been turned off for a considerable period of time, allowing the oil normally in circulation to drain back into the oil pan.