Have a 2017 Sonata Limited with 9200 miles. Have developed a periodic vibration during city driving at normal speeds (25-45mph). It does NOT occur on well-paved smooth streets but does on older, bumpy streets in need of repaving. The vibration becomes evident only in the front passenger side area. Has this been an ongoing problem with this generation of the Sonata? Any suggestions or ideas before I take it to the dealer?