It's an 11 so it isn't under the factory warranty. I got an extent ed warranty through the dealer I bought it from though. Not sure if it would cover this.
The only things I have used to clean them are normal car wash soap and Eagle One A2Z all wheel and tire cleaner. Pretty sure it's not anything I have done.
Dealer in October of last year. You are probably right, since it sat on their lot for about 8-9 months. It's just gotten worse and worse over time. I highly doubt they would do anything.
I got my car used a little over a year ago. I think the previous owner used an acidic wheel cleaner or something, and now they are peeling. There is also damage from tire mounting. How can I fix them?