NHTSA Complaint #11679047 — 2018 HYUNDAI SONATA

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11679047
Vehicle	2018 HYUNDAI SONATA
Component	ENGINE
Date of Incident	May 9, 2025
Date Filed	August 7, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

My car is consuming oil. Hyundai knows this is happening with the theta II engines. I was told to bring it in and do an oil consumption test which shows my car is consuming 1 qt oil every 406 miles but was denied help due to it being high Mileage and not under warranty. My car has now started misfiring due to cylinder 1 & 2 consuming oil.

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