GM Service Manual Online
For 1990-2009 cars only

Clean the outside of the windshield with glass cleaner.

Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroughly when cleaning the blades. Bugs, road grime, sap, and a buildup of vehicle wash/wax treatments may cause wiper streaking. Replace the wiper blades if they are worn or damaged.

Wipers can be damaged by:

    â€¢ Extreme dusty conditions
    â€¢ Sand and salt
    â€¢ Heat and sun
    â€¢ Snow and ice, without proper removal