GM Service Manual Online
For 1990-2009 cars only

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 of the items listed should be inspected and corrected as necessary.

  1. Inspect the wiper blade element set. Refer to Wiper Blade Element Check
  2. Clean the wiper blade elements. Refer to Wiper Blade Element Cleaning
  3. Clean the windshield. Refer to Windshield Glass Cleaning