If you are the original owner, you have a 10 year, 120,000 mile warranty, if you are not the original owner, you have a 5 yr, 60,000 mile warranty. This is the powertrain warranty. For the so-called bumper to bumper warranty, it is 3yr or 50,000 miles. According to the warranty book, door and window adjustments are only covered for 12 months/12,000 miles (interesting that they specify window adjustments isn't it?)

With all that said, take it to the dealer and get them to fix it under warranty, it is a common enough problem that they should know about it (at least the factory rep will know about it). Good luck!