Wipers and Washers. Make sure the windshield wiper blades are in good condition. Make sure the Section 2 – Driving Safely Page 2-27 Version: July 2013
2005 Commercial Driver’s License Manual wiper blades press against the window hard enough to wipe the windshield clean, otherwise they may not sweep off snow properly. Make sure the windshield washer works and there is washing fluid in the washer reservoir. Use windshield washer antifreeze to prevent freezing of the washer liquid. If you can't see well enough while driving (for example, if your wipers fail, stop safely and fix the problem.