2005 Buick LaCrosse Owner's Manual - Page 327

Windshield Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking each time maintenance is performed. See Scheduled Maintenance on page 6-4. 1. Lift the wiper arm and turn the blade until is facing away from the windshield. 2. Push the release lever under the windshield wiper arm, and slide the wiper assembly off of the wiper arm. 3. Slide the new wiper blade securely on the wiper arm until you hear the release clip click into place. For wiper blade type and length, see Normal Maintenance Replacement Parts on page 6-13. 5-51