How do you replace the Windshield wiper blades on a 2007 Buick Lucerne?

To replace the windshield wiper blades on a 2007 Buick Lucerne, start by lifting the wiper arm away from the windshield. Press the small tab on the wiper blade's attachment to release it from the wiper arm, then slide the old blade off. Align the new wiper blade with the arm, slide it into place, and push the tab until it clicks securely. Finally, lower the wiper arm back onto the windshield and repeat for the other blade if necessary.