The driver's seat back exhibits movement when it is in a locked position. While driving and with the seat belt fasten, can feel the seat back move slightly forward during braking or while braking going downhill. While driving on a flat road surface, cannot feel seat back movement. Upon noticing movement, tried physically to move seat back (while not sitting in the seat) and the seat back does exhibit movement while moving the seat in a rocking side to side (left to right) motion, but cannot feel movement when moving the seat in a rocking (front to back) motion. While the passenger seat exhibits a slight movement just like the driver's seat, the movement is more noticeable with the driver's seat. Took the vehicle to a Kia dealership service dpt. And was told the movement was normal and there were no issues with the seats. Vehicle was purchased used and issue first noticed within a month of purchase.

- Raleigh, NC, USA