The powertrain warranty includes all the seals and bearings.. I did the brakes myself, noticing there was wear on the bearing and the rear axle seal on the passenger side was bad. So I put the bad bearings back in with the new rotors and took it in and the gave me a hard time with the warranty. I got out the book, pointed out that all that stuff was under warranty and then they fixed everything for free.... I was at ~75k miles...