1999 Cadillac DeVille Owner's Manual - Page 281

yellowblue Underhood Lamp Turn the parking lamps on to operate the underhood lamp. The underhood lamp will come on when the hood is opened. It's a good idea to check your engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick is located behind the radiator on the driver's side of the engine. The black handle says ENGINE OIL on it. Engine Oil 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. Turn off the engine and give the oil several minutes to drain back into the oil pan. If you don't, the oil dipstick might not show the actual level. 6-11