NHTSA Complaint #11531140 — 2016 HYUNDAI ELANTRA

I bought the car used from a dealer a year ago. I've made sure to keep the oil changed and have regular maintenance. I was driving home after work, and in the middle of highway 49, going 65mph in the left lane, the car stalled and came to an abrupt, jolting stop in the middle of traffic, causing several other cars to nearly hit me before I was able to get a man who was passing by to help me get the car off the road to safety until I could have it towed to a mechanic. It wouldn't crank or start. After he replaced my starter, it cranked and seemed fine. I headed home but halfway home it began knocking on the passenger side of the engine, getting worse with acceleration. The oil is at the proper level, so it's not from lack of oil. After reading online, I realized that this is a common problem with Hyundai..