NHTSA Complaint #11430511 — 2013 HYUNDAI SONATA

When accelerating to 65 mph, the check engine light came on, and the vehicle stopped accelerating. Took the vehicle in to a mechanic, who stated there was poor acceleration at high RPM's and the car had jerking symptoms during hard throttle. For the engine diagnosis there was a fault code for the knock sensor found. Very low oil levels were in crankcase, no additional fault codes found, abnormal noises. Signs of internal engine problem low oil pressure suspected, no apparent lubricant to upper part of the engine. Recommended replacing the engine. The mechanic estimated the car was also losing oil faster than it should've. Prior to this incident occuring, the car has been regularly maintenanced at the dealership. Car was taken in to an independent mechanic to be looked at because dealership service repair did not have an opening for 2 weeks to look at the car. The lower acceleration could cause an accident on the freeway if driving at high speeds and the acceleration malfunctions without warning. No other persons have looked at the car yet. There was no lights, symptoms, or messages indicating a problem prior to this incident happening. This was the first time this incident has happened with the vehicle.