New transmission for my 2015 Yukon XL Denali

[Saf6]

Found out today that my 2015 Yukon XL Denali is getting a brand new transmission. We’re at 33,000 miles, purchased it pre-certified from a GM Dealership less than a year ago. I’m not convinced the previous owner never heard the noise, but it makes a a clunking noise when accelerating from a stop. Not every time, but frequently enough, however it took 3 visits to the dealership for them to finally hear the clunking. Apparently there is a bulletin that fits my exact problem, and the fix is a brand new transmission. Has anyone else experienced this? 

[seamus2154]

I had a '15 Denali and the trans was problematic the entire time till I traded it. Trans had been out 2 times for torque converter and then stator shaft. Never shifted right. Always confused. Traded to a '17 and it is definitely improved and has different programming. Hopefully your new trans comes with the new programming and improvements.  Good luck

[Craig Stevens]

My 2015 Sierra has had transmission for shifting issues since i bought it from Bob Fish spring of 2016. It has not left me on the side of the road so I've just made a call to see if there was a recall, they said they had not seen this as a problem at their dealership. I just received a letter from a law firm asking about my Transmission, so I guess I'm not the only one.

 

I made a appointment to get it in, I have put a little over 40,000 miles and I don't want this to become an issue when the warranty if gone. 

 

Any advise would be great.