What does the ford fiesta quickclear windscreen button do?

The Ford Fiesta's Quickclear windscreen button is a feature that makes defrosting a front window automatic. The windshield is equipped with embedded heating elements that melt ice and snow within 5 minutes or less. While other vehicles employ heated windshields, Quickclear is proprietary technology developed by Ford and considered by experts to be some of the best defrosting equipment in the automotive industry. It is standard across all Fiestas. To activate press the left hand button below the center display earmarked by a "windscreen" symbol. The Quickclear's ability to apply heat rather than effort to clearing ice means it's beneficial to preserving Your wiper blades as well. The warmth melts ice around the blades so they're free to move without stressing the motor. Quickclear also works for clearing fog and condensation from windows.