The system/component that failed is the panoramic moon roof retractable shade. This is an electronic retractable fabric shade on the inside of the car that covers the moon roof glass. The tracks that hold the shade taught and in place have failed, this is a major safety concern due to the sagging fabric blocking the view of the rearview mirror and side windows. This impairs visual awareness of surrounding vehicles, obstructions, and approaching emergency vehicles from behind. This is a known common issue with this make and model vehicles as read about on multiple forums and social media sites. There were/are no sort of warning lamps as this is a mechanical track with no sensors. Ford has not issued any sort of safety recall thus far.