New transmission after 600miles ?

elmo

So I just got my 2012 Base+sport MT on 3/6 and noticed 3days later that when in 4th gear the car makes a whining noise but in all other gears it is quite and to add to the frustration the car drives and shifts in and out of all gears smooth so with the exception to the noise it drives perfect .. .

i Finally decided to to bring it back to the dealer today3/22 as it has pasted the 500mile marker that everyone and there brother including the dealer said to wait as it maybe the car just settling to my driving or the "breaking in period" witch i fell for. The dealer calls me after a couple hours to tell me it is a problem they have not seen before ,something that is not harming the car from being driven but that they will be replacing and not fixing the transmission . the dealer also relays to me that they are flying someone in from the Nissan HQ in Nashville to document the trannys problem as it is a rarity they say ...

and after this i picked my car up and am now waiting for the transmission to come in to be swamped out .... figured i share the story and how it unfolds if anyone else is having the same issue .