TL* THE CONTACT OWNS A 2017 HYUNDAI SANTA FE SPORT. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THE VEHICLE SHUDDERED AND DECELERATED INDEPENDENTLY. ADDITIONALLY, THE VEHICLE FAILED TO ACCELERATE WITH THE ACCELERATOR PEDAL DEPRESSED. THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE CONTACT WAS INFORMED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS TAKEN TO FORT MILL HYUNDAI (805 GOLD HILL RD, FORT MILL, SC 29708 (855) 548-9524) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT AN UNKNOWN SOFTWARE UPDATE NEEDED TO BE PERFORMED. THE SOFTWARE WAS UPDATED HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 37,000. THE VIN WAS INVALID. *DT*JB