2012 Cadillac Escalade Owner's Manual - Page 484

11-12 Windshield Service and Maintenance Wiper Blades Wiper blades need to be cleaned and kept in good condition to provide a clear view. . For safety, appearance, and the best viewing, keep the windshield clean and clear. . Signs of damage include scratches, cracks, and chips. Trained dealer technicians can inspect the windshield and recommend proper replacement if needed. . Signs of wear include streaking, skipping across the windshield, and worn or split rubber. Trained dealer technicians can check the wiper blades and replace them when needed. .