This isn't CCC's area of advice. They'll send you directly to your dealership, then you raise enough hell to get a date with the regional service rep.
It's an expensive "luxury" marque car. Peeling paint at 2 model years old is totally unacceptable. Raise hell !!!
Post this question up in the correct year group of XTS forums.
FWIW, do some deep diagnostic looking and checking - I smell a hood repaint. Good buds with a decent local body shop? "Hey, Bob, what do you think of this?"