DTC C2721-46: System Calibration Required: General Description
WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
The Multi Function Camera (MFC) is to help driver to be safety and comfort through using multi function which are High Beam Assist (HBA), Lane Departure Warning (LDW), Lane Keeping Assist (LKA), Highway Driving Assist (HDA), Driving Attention Warning (DAW).
It is easy to understand how to steer the handle to driver when the MFC provide the video that it is to view vicinity of a vehicle, pedestrian, bicycle etc.
Or the MFC could control the steering handle.