Mode Control Actuator: Description
WARNING: This page is about a different car, the 2005 Kia Spectra5, 2005 Kia Spectra, and 2004 Kia Spectra. However, it is still accessible from the selected car via links, so may be relevant.
Pressing mode select switch with the ignition on, driver side and passenger side mode door actuators will shift as follows: Vent --> Bi/Level --> Floor --> Mix.