I think its because the seat is all the way back, normal driving position for me, and theres only just enough room for my hand to get to the door handle to open the door ..if you get what I mean and large hands mean i seem to catch the buttons.. with them being almost silent and me making the noise getting out of the car its eas to not notice that one or the other has opened especially the rear ones. Iy happened again last night .. I noiced an eail from Teslafi this morning at 0030 that the window was open. Even though I heard the beep of the car locking...Frustrating!!