I recently discovered a new feature with my 2019 Model S. I was returning home from SC with FSD enabled. There was pollen dust on the windshield but not enough to block my vision. Suddenly the windshield spray and wipers came on to clear the windshield. I presume that the car was clearing it for the cameras. This was the first time I had seen that and have not seen any discussion of that capability. I am unexpectedly impressed.