2000 Cadillac DeVille Owner's Manual - Page 310

Before closing the hood, be sure all filler caps are on properly. Then pull the hood down and close it firmly. Underhood Lamp Turn the parking lamps on to operate the underhood lamp. The underhood lamp will come on when the hood is opened. Engine Oil If the CHECK OIL LEVEL message appears on the instrument panel, it means you need to check your engine oil level right away. For more information, see "Checking Engine Oil" in the Index. You should check your engine oil level regularly; this is an added reminder. Analog Cluster, Digital Cluster similar A CHECK OIL LEVEL message will appear when the engine oil is approximately 1 quart (1L) low. If the message is displayed, check the dipstick level and add oil as needed. 6-11