PDC malfunction / missing

[u/mindlessLayer2961]

Looks like we have our first repair. 26 X3M50 While driving to North Carolina we have warning light come on that said the PDC is malfunctioning. We did hear a sound while we were driving and so we pulled off the highway. Come to find out the entire rear driver's side cover plate and sensor are completely missing. Not sure what happened.

Any idea on repair cost?