Toyota USA provides this quick video guide to show you how to use the windshield wipers in the 2010 Prius. If you want to control the wipers and washers, take the following steps: To operate the wipers, move the right hand stalk up for a single wipe, or move it down to activate the intermittent setting. Move the stalk down one more position to select a slow and constant wiper mode. One more down pull selects the fast wiper mode. Pulling the entire stalk towards you will activate the windshield washers. The rear window wiper's controls are located at the end of the right hand stalk. Twist the know downward to wipe and wash the rear window. Turning it upward will cause intermittent wipes. Turn it up once more for steady operation, and one more applies windshield washer to the glass.