I have 55,718 Miles on my 2016 Malibu, I just did the recommended Transmission flush. The problem is now my car is shifting hard ( It Never Had and issue until the flush). I took it back to have it looked at and was told everything looked fine. It is still shifting hard and I am at a loss on what i should do. I have even thought about just trading it in and getting another brand of car. I am so frustrated. I loved my car up until this point . Please any advice would be appreciated.