I would take it in to the dealership ASAP. I had this on my 11 Sonata SE for about a week and today my front right brakes were squealing bad so I had roadside assistance pick it up. Im pretty sure my piston in my caliper got stuck and wore my pads out that I just put on there a little over a month ago.Today I noticed a strong burning rubber or plastic smell coming out of the right rear wheel well. All other wheel wells did not have this odour.
We had a bout of freezing temp's here recently and some snow, I'm wondering if the brake on that wheel may have seized slightly through the all wheel drives tourque vectoring or through parking brake use.
I'm going to drive it to the dealership tomorrow without making an appointment in hopes they will look at it right away as making an appointment this time of year is probably going to take forever.
Any thoughts on something I might be missing or can do?