Replace the wiper blades at least annually for optimum performance.
You can improve poor wiper quality by cleaning the wiper blades and the windshield.
Note:   Do not hold the wiper blade when lifting the wiper arm.
Note:   Make sure that the wiper arm does not spring back against the glass when the wiper blade is not attached.
Wiper Blade Removal
  1. Pull the wiper blade and arm away from the glass.Press the locking buttons together.
  1. Slightly rotate the wiper blade.
  1. Remove the wiper blade.
  1. Install in the reverse order.
Note:   Make sure that the wiper blade locks into place.