Transmission Whine

[Rod K.]

I have a 2015 nx200, 45,000 mi....getting a whine, sounds like it's coming from transmission.  More prevalent when temp is warm out & after the car is driven some. Louder when accelerating some & you can hear it more when trans shifts............???  Any suggestions, dealer said they could hear it, needed more time to troubleshoot it, so I'll leave it with them next service appointment.