I've had bad luck with at least 4 of those slow-leak situations over the past five years, one on a prior BMW and the rest on our two Tesla's. But slow-leak better than a rapid leak, right, at least it never strands you thus requiring roadside assistance, and gives you time and options to shop around or drive to get it fixed. Got used to carrying around a portable 18V inflator (wise $25 investment) and spending a few minutes adding air every other morning or so.
America's Tire/Discount Tire is great - they fixed a couple of them for free, all except the one a bit too close to the sidewall. It wasn't right by the sidewall, I eventually learned how to use a tire plug for that one myself. The tires were close to the wear bars anyways so just bought a few months to research next set of tires. Last slow-leak that buggered me for months, couldn't find it even with the soap bubble test - well, it turned out to be in the valve itself. If you never knew before, they do actually replace the valve stems each time you install new tires - even though the stems are attached to the rim, not the tire, so fixed when I finally bought new tires.
America's Tire is also great with the Michelin warranty, I learned here that they will fight for your Michelin warranty, even on the OEM tires, if you buy another set of Michelin's. In my case it was a replacement set of MXM4's I bought at America's Tire that only lasted 20K miles, the rep said Tesla's pretty much only get half the rated life regardless of tire. They offered the warranty credit on a new set of Michelin's, but when I asked about a new set of much-cheaper (and higher mileage-rated) Falken's, they honored the credit on those instead. Even better the pro-rated credit was not on the price I initially paid three years ago, but on the current jacked-up price of MXM4's - the Falken's ended up basically free, I only had to pay the balance for mounting/balancing.
