Driver side vibration

Still haven't hit 1000 miles on this Prius v and continue to have issues.

Tonight, when I shut the doors, especially the drivers side, there is a rapid vibration under the drivers seat, but outside under the car. Any door does it, but especially the drivers door. If I shut the door very softly, no vibration. It's loud and lasts maybe a second, vibrating the entire time. I drove down the road and back. Same problem. It has never done this. I see nothing loose underneath.

This is not the pump sound when the door is opened, but a very loud and clear vibration. I can hear it when getting in the car too. It's so loud it comes through the floor.

2 months in and it has way too many issues. I'm really surprised it's made this poorly.

Slight update. The vibration stopped after 15 mins. Drove to the end of the driveway and back, vibration returned. It sat a couple of mins, vibration left again. I live in Florida. The temp rapidly dropped at dusk. Could it be related to maybe rapid temp change? I guess I'll find out if it continues. I see what looks like a pump underneath in the vibration area.

 

What I mean is that it vibrates for about a second every time I close the door. But after around 15 mins, the door closing stops causing it until I drive again. The mirror vibrates slightly with a door close, which I consider normal. This is not like the mirror vibration. It's a much louder, weird vibration up under the Prius.