Just had the drivers seat get stuck on my June 2020 Model Y. Stuck all the way back. I’m 6’5”, my wife is 5’5”. Prevents her from driving the car.
I was able to get it unstuck twice now by pressing back on the seat (using my legs braced on the floor/ firewall) while moving the switch rearward, and then forward.
Counterintuitive to push back on the seat when when you want to move it forward, but doing it briefly while pressing rearward on the seat switch, and then forward on the seat switch did the trick. The seat continued to work properly until I drove the car. I am guessing the act of driving while the seat is all the way back causes the seat position to shift and the seat position drive gear to bind in the seat track. My workaround with pressing on the seat while cycling switch not a long term solution, since takes some practice to get it to work. I have visions of an emergency call from my wife when she can’t get it to work.
I have booked a mobile service appointment for 6 days from now, will see if they can address.