If its going to be a rain filled return journey home, , check the tightness of the wiper blade arms usually an allen screw. They have on occasion a habit of working themselves lose and the wiper arm coming off the spindle. When I picked mine up, the one wiper arm screw was quite loose. When you get a chance just put a dab of thread locker on them. The wiper blades are not the best, but they do clear the screen
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