P252F
Engine Oil Level Too High
What it means
P252F means Engine Oil Level Too High.
Check these first
- The engine oil level is above the full mark
- Coolant or fuel is entering the crankcase
- An overfilled engine during the last oil change
- A failed engine oil level sensor
What to do next
- Check the engine oil level on the dipstick
- Drain oil until the level reads at the full mark
- Check the coolant and fuel systems for leaks into the oil
- Read the engine oil level sensor on a scan tool
- Replace the engine oil level sensor if the level is correct but the code stays
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.