Genuine OEM Kia Lumbar Support Switch, part number 88194D3000WK. This electrical switch is responsible for controlling the lumbar support function within the seat, allowing occupants to adjust the backrest contour for personalized comfort. It is typically located on the side of the front seat base, providing easy access for adjustments. Choosing a genuine OEM switch ensures precise electrical connectivity and reliable operation, maintaining the intended functionality of the seat's comfort features.