GM Service Manual Online
For 1990-2009 cars only

    Object Number: 334256  Size: SH
  1. Remove the wiper blades from the wiper arms. Refer to Windshield Wiper Arm Replacement.
  2. Inspect the length of the wiper blade element.
  3. Important: Replace the wiper blade element if the rubber element is deflected more than 15 degrees from the centre line of the blade.

  4. Install the wipers blades on the wiper arms. Refer to Windshield Wiper Arm Replacement.
  5. Operate the Wipers to Inspect for correct operation.