NHTSA Complaint #11430969 — 2017 ACURA ILX

My 2017 Acura ILX makes a loud clunk, and shifts extremely hard when coming or coasting to a stop. 1-2 gear seems to be the only time this issue arises. This issues creates startling reaction from the driver due to the loud clunk and force of the shift in gears, as well as loss of confidence in the vehicles ability to safely come stop without issues. Reproducing the issue is difficult because the issue usually occurs in traffic in 1-2 gears and test driving it around the block is not sufficient enough to experience hard shift/clunk. I was told it may be the rear differential bushing. Once they checked that, they were able to rule out the possible bushing issue. There are no codes being shown, and no other issues present before or clunk/jamming of the gears. This issue began 4-5 months after purchasing the vehicle from A Honda/Acura Dealer Washington in Dec 2020