One problem related to engine noise has been reported for the 2015 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Hyundai Elantra based on all problems reported for the 2015 Elantra.
I have a 2015 Elantra that developed an engine noise at 135,000 miles. As I was driving on the highway, at a speed of 65, the engine became extremely loud. I pulled over to check my vehicle. I pulled out the dipstick and it had metal shavings in the oil. The car lost all ability to move. The gas pedal did not work and the vehicle would rev on its own. I had it towed to a hyaundai dealership. They said the vehicle only had 1 quart of oil. The issue with that, is my low oil light never came on in the vehicle. The dealership ran the codes, and it showed nothing on the scanner.