i use my wiper all the time. but i swapped my hatch (had spolier and was rusted) for a non spoiler non rusted hatch. didnt realize right away that it didnt have a wiper because it was a quick swap because it was pretty cold out. i still keep going to use it but its not there, and i cant hardly see out the back window anyways. its got some pretty dark tint on it. and i think ill tint the side rear windows to match.