I recently replaced the trans mount on my '14 with 48,000 miles on it. The rubber in the mount was torn into 3 pieces. Yes at just 48,000 miles. But mine is an Ecodiesel and I regularly tow a 6500# race car trailer.
I bought the mount from the dealer for $70 and it took less than an hour to replace it on my lift. Could have tried to get it done under the powertrain warranty but the wait for an appointment was more than a week and then I'd need to rent a car which would have cost almost as much as the part. So I just did it myself.