Your vehicle may be equipped with a LOW ENG OIL LEVEL message.
This message is displayed for 60 seconds at the start of each ignition cycle when the engine oil level is low. Four chimes will also sound.
When the ignition is turned off, this message will be displayed again for three seconds to remind you that your engine oil level is low. Be sure to have your vehicle serviced right away.
See Engine Oil on how to check the oil level and for what type of oil to add.