So in my driveway I found a piece of rubber that appears to be a grommet of some sort. I don’t know if it belongs to the Prius or what part it goes to. Has anyone seen this part before and knows where it goes? It’s probably junk but I wanted to verify since I wasn’t sure.
It's looks like a car frame drain plug. Hold onto it and next time you get your vehicles on a lift or jack look all around the edges (especially under the doors.)