Which transmissions fit the 2015 Buick Enclave?

[reputation precedes me]

Hey everyone, I'm helping my girl with her 2015 Buick Enclave and she needs a transmission replacement. Some parts sites say only 2015 fits, but I'm wondering if transmissions from other model years might work too. Which years are interchangeable with the 2015 Enclave?

 

[brutalheir06]

The same transmission was actually used across a few model years, but you still have to be careful, from what I found, 2013 to 2017 enclaves and even the acadia and traverse of those years can be compatible, but the RPO code has to match, its a must, should be MH2 for the AWD or MH6 for FWD, it's usually on the transmission itself or in the glovebox sticker and like that's not enough, even if the transmission is mechanically the same, sometimes the electronics or sensors are slightly different year to year, just try to get a replacement with one from the same trim and drivetrain

 

[salaryman]

For that, the transmission is generally compatible with models from 2010 to 2017 since they share the same 6speed 6T75 automatic transmission. Tho , there can be some differences in calibration, sensors, or bolt-on components, so its still best to match the transmission code and check compatibility with the VIN or maybe consult a trusted mechanic or dealer before buying a used one from another year

 

[nerf-investor366]

The same transmission was actually used across a few model years, but you still have to be careful, from what I found, 2013 to 2017 enclaves and even the acadia and traverse of those years can be compatible, but the RPO code has to match, its a must, should be MH2 for the AWD or MH6 for FWD, it's usually on the transmission itself or in the glovebox sticker and like that's not enough, even if the transmission is mechanically the same, sometimes the electronics or sensors are slightly different year to year, just try to get a replacement with one from the same trim and drivetrain

Thanks for sharing all that! Do you happen to know if reprogramming is ever needed when swapping one of these between model years, even with matching RPOs?