Two problems related to noises during shifting have been reported for the 2014 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Hyundai Sonata based on all problems reported for the 2014 Sonata.
In July 2019 2014 Hyundai Sonata as I was driving vehicle stalled. Again in September 2019 vehicle did same thing. Prior to that as I would put vehicle in park and turn off engine the shift nob would not completely be in park position. It would make a noise like it shifted. Took it to huyndai dealership and they were able to approve warranty for engine,but then stated it was going to need new transmission. And that the 3rd shift was difficult. As I look under recalls I see that campaign recall 123 was done 2014. However upon researching came across if dealership repaired a recall and it failed they should have been able to repair the problem. Unfortunately I was not getting anywhere with consumer affairs and getting recall campaign 123 repaired. . I needed vehicle running to get to work so since Hyundai didn't want to repair something they supposedly billed out. I had to pay out of pocket for transmission repair.
Driving the car the transmission stays in high gear and should be down shifting into lower gear makes a grumbling noise then goes away when at higher speeds 45 plus. I have gone back twice to the dealer and they tell me and the the man that worked on the car thats the 6 speed transmission and thats how it works. I owned the same model 3 years before 2012 and never had this happen. I think theres is a problem with the transmission. Nothing has happen to me or my wife. But something is wrong with the cars transmission. This has happen many times before but dealer states nothing wrong.