Spent the $800 for a tire warranty and was told it was seamless. You get a flat, come in, let them know you have warranty and they take care of the rest. My first flat, sent the car in. Dealer said they couldn't find the warranty on file even though I insisted I had it. They called the original dealer, they said they couldn't find it either. No other info or assistance - they charged me $250 for the tire and sent me on my way. After some digging, I called the tire warranty company, they confirmed I had the warranty and said the dealerships don't keep record of warranties and is supposed to call them direct and file the claim before they do work. Since the tire was already changed, they will not cover. After months of back and forth - Lexus corporate had to get involved to issue the refund. Moral of the story is: If you buy a tire warranty, don't expect the dealerships to help or do their due diligence to honor it. Make sure you have a copy of your warranty ON HAND and don't let them change your tire until you have confirmed all is well with the Warranty company.