 Rotors warp continuously. Warranted item but no easy fix. The red tape process for getting approval to replace a warranted item will have you eating blood pressure medication at age 30. Hyundai claims they have a "Bumper to Bumper" warranty for 5 years 60,000 miles. Good luck getting them to honor it. Not to mention the replacement of the wheel bearings and seals at about 15000 miles! Of course it took another 3000 miles for them to replicate the sound! Recently took a service manager for a spin and he heard it every turn but the service tech couldn't replicate, hmmm sounds familiar. Overall Hyundai promises you the best warranty but hardly delivers! Still trying to get the rotors replaced.