Rear windshield wiper arm and blade

Fig 1: Identifying Rear Windshield Wiper Arm And Blade

Courtesy of VOLVO CARS OF NORTH AMERICA.

Reset the motor
Position the arm with the nut. Adjust the arm so that the blade is in the middle of the black area on the windshield. Tighten the nut
Test run the wiper with the washer. Reset the wiper. The blade must come to rest in the middle of the black area on the windshield. Alternatively, if the windshield is dry, approximately 10 mm below the top of the black area.