NHTSA Complaint #11657675 — 2019 HYUNDAI ELANTRA

Vehicle Issue Report Vehicle Information: •Make: Hyundai •Model: Elantra •Year: 2019 •VIN: [XXX] •Mileage: [Insert Current Mileage] •Engine Type: 2.0L Nu MPI ⸻ Summary of the Issue: The vehicle has experienced a complete engine failure due to a malfunction in cylinder 3. The issue began with noticeable performance problems including rough idling, knocking sounds, and a check engine light. After diagnostic evaluation, it was confirmed that the engine has failed, and a replacement is necessary. ⸻ Cause of Failure: The root cause of the failure has been traced to cylinder 3 misfiring and loss of compression, which led to severe engine damage. Based on known technical service bulletins and recalls issued by Hyundai, this failure aligns with existing recall campaigns related to improperly heat-treated piston oil rings in the Nu MPI engine. These rings can cause oil consumption, scoring of cylinder walls, and eventual engine failure. ⸻ Recall and Warranty Consideration: Given that Hyundai has issued multiple recalls and extended warranties for this exact problem in 2019–2020 Elantra models, we are requesting that this vehicle be covered under Hyundai’s engine replacement recall or extended Powertrain Warranty (up to 150,000 miles / 15years) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)