I removed the plastic housing for a better look inside.

Is this a sensor or a previously installed dash cam?
Any insight or suggestions?

I want to install a dash cam but it sure looks like this is a camera already sitting there.

I don't know if this is a reflection

 

This has been answered in the other forum.
The workshop manual lays out a useful description of these sensors as well.
Cheers.

 

I don't have a workshop manual. I'm happy to take your recommendation.