My dishwasher is only 2 years old and I had rusting start over 9 months ago.
I have been through every avenue of resolving this issue from this forum, to them promising to replace the rack (but they couldn't get a repairman to drive the distance) to having tickets orders cancelled because of said repair person to just now getting off the phone after filing a BBB complaint.
This is a known issue and they will not repair or replace the rack as they will deem it cosmetic.
There is nothing cosmetic about a rack that is covered in vinyl that would allow a rack to start rusting in 4 different places. That cover has to be damaged somehow and the places mine is rusting there is no way that they couldn't have been damaged.
The new racks are 1/3 the price of the dishwasher.
And when they think they have concluded with you, they will turn off commenting on your post.
I will NEVER buy another Samsung product again.