Just noticed today that I'm missing on of these "hinge covers." There are only two on the car and they're in the rear back right and left and appear to cover the area by the trunk.
I called around and none of the techs could figure out what the part was from my description (I haven't had time to drive to my nearest center yet for a look).
If I had to guess it's "Left Hinge Moon" but nothing is coming up with numbers of parts. Perhaps it's referred to as "Pillar?"
My car is brand new (800 miles) so I'm still under new warranty but was curious what it was.
The numbers underneath don't seem to correspond with any parts.
Car is: Ford Escape Titanium Hybrid, 2020