The wiper arms can be manually moved when the ignition is off. This allows for ease of blade replacement and cleaning under the blades.
Pull the wiper blade and arm away from the glass. Press the locking buttons together.
Rotate and remove the wiper blade.
Install in the reverse order.
Make sure that the wiper blade locks into place. Lower the wiper arm and blade back to the windshield. The wiper arms will automatically return to their normal position when the ignition is turned on.
Replace wiper blades at least once per year for optimum performance.
Poor wiper quality can be improved by cleaning the wiper blades and the windshield.