Today when riding I tried to lower the windshield and it would not go down. When I got home and looked at it I could hear the motor running but the windshield would not move.
It was the plastic piece that the screw runs through to raise and lower the windshield. Indian wants $415 for the whole assembly as they do not sell just the plastic piece.
On ETSY I found someone that 3D prints the part for $40. Here is a link
2018 Indian Roadmaster windshield lead screw nut replacement
Yep, extremely common. One way to avoid this is to never use the auto stop feature (double clicking the lever). The way the windshield is designed is when the motor loads up, it shuts it down, this puts excessive stress on the plastic drive stripping it. Just stop the windshield before it hits the full up or down position. The proper way would have been to use limit switches but that would cost too much for cheap old Polaris
I too bought that part from Esty, not because I have an issue, but as insurance for a rainy day. There is a guy on Facebook called Yeti-Kovak that makes milled aluminum versions for 100 bucks a pop and he has sold a butt load.
The Challenger guys has massive stripping of this. Polaris must have switched to butter-based nuts.
There is a bunch of You tube videos on replacement. The windshield parts is the same for all the motorized windshields, doesn't matter what bike you have.