Where is the input/output transmission speed sensor on a 2015 Hyundai Elantra?

What is your question?

"2015 Hyundai Elantra 5,000 mi, Visitor Gear din't shift the gear when the rpm on 3 , 4 and some time stuck into 4th gear then i stop the car and switch off it after few minutes it gets normal and in reverase rpm going up and car move on slowly slowly kindly guide me what is soultion Thanks" My car is doing the same thing, the engine light is not on, and I am wondering what is the solution to this problem. Thank you.

What makes this problem better or worse?

Makes it better when I start using the automatic manual shift but it goes back to this problem

How long has your 2015 Hyundai Elantra had this problem?

three days