Pull the wiper blade arm away from the windshield. This action will raise and lock the wiper blade arm into the service position.
Locate the lock pin that holds the wiper blade onto the arm. Push the pin in with your fingers or a screwdriver to release the blade. Pull the blade down toward the windshield in order to fully remove it from the arm.
Attach the new wiper blade onto the arm. Press the blade into place until you hear it click and carefully lower the wiper blade arm down onto the windshield.