I just got a check for $533.52 from Michelin for a warranty claim for the original tires Tesla put on my model 3 in 2018. The tires only had 25,936 miles on them.
To get the warranty claim I called the Michelin Consumer Care number 800-847-3435 and had to try a few menu combinations to get to a real rep. She had me give her some information about the tires and asked to get an official tire evaluation from a dealer. Since I just bought new tires at a Discount Tire in San Diego I had her call them and they gave her the details on the tread wear (around 3/32) and tire condition.
Just thought I'd pass this along since it was a much larger refund than I anticipated. The process was not easy and took at least 3-4 calls but in the end it was totally worth it.
Have to give Michelin credit for honoring their warranty, even if they don't make it easy.
Hope this helps someone else.