2018 CX-5 GT Transmission Replaced - High pitched whine

[postmortem]

Will definitely do! Will update if anything comes up. Thanks for the help mate.

Yeah I would definitely take it to a shop that specializes in Mazda or the dealership. Take a copy of the TSB.

Update: new transmission and rear differential are needed. 15k worth in repairs. Let's see if my warranty wants to cover anything.