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 tested and repaired as necessary.

    • Clean the windshield glass. Refer to LINK.
    • Clean the wiper blade elements. Refer to LINK.
    • Perform the wiper arm tip pressure test. Refer to LINK.