Rain, snow, ice, bird poop, road debris... a lot of things can get stuck on your windshield and impede visibility, that's why it is crucial to be sure that you have good windshield wiper blades on your 2017 Sierra to remove anything that might block your visibility. Your 2017 GMC Sierra wiper blades become less effective with time as the rubber wears, cracks, or grows contaminated with road debris. These imperfections detract from your ability to see clearly by causing streaks or a filmy haze to develop across the windshield while the wipers are in use. That's why you should inspect your 2017 Sierra wiper blades proactively, so you can catch these symptoms before you find yourself in inclement weather. These direct-replacement 2017 GMC Sierra windshield wiper blades are made from better-than-OE materials, so you can trust them to keep your windshield clean for a long time.