One problem related to transmission noise has been reported for the 2015 Jeep Wrangler. The most recently reported issues are listed below.
My vehicle would make a moaning noise when going into drive and reverse. It took Chrysler over a year to listen to me and replace the transmission. Once it was replaced, I have not heard the noise so far. This noise would occur when the vehicle was stationary but also would occur if I was stopped and started moving again.