GM Service Manual Online
For 1990-2009 cars only

Some vehicles may exhibit a condition where the windshield wiper blades chatter or wipe unevenly. Several different conditions can cause the wiper blade chatter. To completely repair wiper blade chatter, all of the following should be checked and repaired as necessary:

    • The windshield glass must be clean.
    • The wiper blade element must be clean.
    • The wiper arm tip pressure must be within specifications.
    • The wiper blade element set must be within specifications.