2017 Premium Luxury with the $600 upgraded rim option. I just had two rims replaced under warranty for the clear coat flaking off. My car is now a year old and there was no curb damage done to the rims and I hand wash them with a wet microfiber towel with some spray wax to remove road and brake dust. Dealer asked if I take the car to the car wash. I said, don't most Cadillac owners? He then told me that the car wash was to blame, because car washes use acid when they clean the rims. I asked him if they tell all of their customers not to take their car to the car wash, because their rims might get damaged? It seemed to me that the car wash was not the reason the clear coat was flaking off the rims after a year. You could tell it was not acid etching the rims, which I have seen after years of chemical cleaner use, but the clear coat was flaking off in fingernail size pieces on the spokes of the rims. He warrantied the rims, but did not seem happy to do so. Now, I just noticed that this is starting on a third rim too. Anyone else with the upgraded rims notice this? Seems to me to be poor quality from the factory.