If your vehicle is showing low engine oil level warning message on dash, here are the most likely causes and the parts you'll need to fix each one.
All engines consume a small amount of oil during normal operation. If it has been a long time since your last oil change, the level may have simply dropped below the sensor's minimum threshold.
If you recently had an oil change, the technician may have failed to properly tighten the drain plug or oil filter, or forgot to replace the crush washer, causing a rapid external leak.
Rubber and cork gaskets degrade over time due to heat cycles, allowing oil to seep out of the engine block and eventually triggering a low oil level warning.
The electronic sensor located in the oil pan can fail electrically or become coated in sludge, falsely triggering the low oil warning message even when the physical oil level is completely full.
A stuck Positive Crankcase Ventilation (PCV) valve can cause the engine to pressurize and suck oil vapor into the intake manifold, burning it rapidly without leaving a puddle under the car.
Severe internal engine wear allows oil to bypass the seals and burn in the combustion chamber. This is often accompanied by blue-tinted smoke coming from the exhaust.