The 4th generation Toyota 4runner has a rear wiper blade that is easily replaceable. It sits on a support at the bottom of the rear hatch window when not in use, but uses a spring to press the arm against the window when it operates. The front windshield wipers get the attention usually, but if you use the rear wiper at all, you’ll realize after some time that it will need to be replaced eventually too.

For years, my 4th generation Toyota 4Runner only wipe a portion of the rear hatch window when it should be wiping an entire half circle. It turns out that fixing this problem is very simple, and requires only a slight cut to the plastic rear arm to fix the issue of the rear wiper arm not making full contact with the window.