Component Description: RCM
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The shift by wire system uses the driver's safety belt buckle as one of several inputs to determine driver presence. If the buckle is deemed faulty for any reason the system reads this as unbuckled so that any time the door transitions to open below a set speed the PCM commands a to return to P.