One problem related to engine funny noise has been reported for the 2012 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Hyundai Elantra based on all problems reported for the 2012 Elantra.
The first trouble started when I was driving on the highway at 60 miles/hour, my car started slowing down and would not accelerate. I had to drive at the speed the car would choose to run and in a few minutes it would work fine again. But this kept happening when I would accelerate the car on highways and I took it in to the dealer who said it was sensor problems. Engine light comes on when I use air conditioning, or use the head lights. Car will randomly not turn on although battery is new and makes a humming noise as I turn the key.