From a Michelin email I received today:
When you buy a set of MICHELIN® Pilot® Super Sport tires, you can rest assured that you made a great choice. Backed by the MICHELIN® Promise Plan™, your tires come with:
• a 30-day Satisfaction Guarantee
Available on all MICHELIN passenger and light truck replacement tires. If you're not 100% satisfied, bring the tires and original sales receipt back to the place of purchase within 30 days for a new set of tires.
• a 3-year Flat Tire Changing Assistance
A qualified service professional will change your flat or provide towing at no charge. In case of a flat tire, simply call 1-888-553-4327 and a qualified professional will change the tire or provide towing up to 150 miles for free. Available 24 hours a day, 365 days a year in the U.S. and Canada.
• 30,000-Mile Treadwear Warranty
This sounded interesting until you read the fine print. The tire must come as OEM on 2011 and later cars, and if a staggered fitment is used, the warranty mileage is reduced in half.