NHTSA Complaint #11530884 — 2019 HYUNDAI SONATA

The contact owns a 2019 Hyundai Sonata. The contact stated that while driving at approximately 70 MPH, the vehicle inadvertently revved and decelerated to 40 MPH while the accelerator pedal was depressed. The check engine warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed that timing chain had failed and the engine needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that while driving at undisclosed speeds, the check engine warning light illuminated. The contact then stated that occasionally she needed to add engine oil between oil changes. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure and a case number was provided. The failure mileage was approximately 220,000.