Wiper and Washer Systems: Service and Repair

Some vehicles may exhibit a condition where the windshield wipers chatter and/or wipe unevenly. Several items may contribute to this condition. To completely repair this condition, ALL the items listed below should be checked and repaired as necessary.
^ Windshield Glass Cleaning
^ Blade Element Cleaning
^ Wiper Arm Pressure Check
^ Blade Element Set Check

Windshield Glass Cleaning
Clean the windshield with windshield cleaner, GM PN 1050011 or equivalent. The cleaner used should be one which will not harm the paint finish or scratch the glass. The glass is clean when the water no longer beads, but sheets across the entire glass surface.

Blade Element Cleaning
Lift each blade assembly off the windshield and clean the element with a cloth saturated in full strength washer solution. Rinse the blade assemblies with water.