Your vehicle may have a low oil level light.
This light should come on as a check, when you start your engine. If the light fails to come on, have it repaired as soon as possible so you will be aware when the oil level is low.
Vehicles that have Caterpillar® diesel engines may not have a low oil level light. In this case, the light will neither come on as a check when you start your engine, nor will it come on to indicate a low oil level.
If this light comes on and stays on, it means your engine is low on oil. You need to check the oil level right away. See Engine Oil for further information.
Notice: Lack of proper engine oil maintenance can damage the engine. The repairs would not be covered by the vehicle warranty. Always follow the maintenance schedule in this manual for changing engine oil.