Front Windshield Wiper Blade Change: 1990 GMC S15 High Sierra 4.3L V6 Standard Cab Pickup

Follow these steps to learn how to remove front windshield wipers in your 1990 GMC S15. Always replace both windshield wiper blades, even if only one side is streaking - the rubber on the opposite side is likely worn as well. We recommend changing the wiper blades on your S15 at least once a year even if you don't use your wipers much - the sun wears out your wiper blades more than using them to wipe water. We recommend changing the wiper blades on your S15 at least once a year even if you don't use your wipers much - the sun wears out your wiper blades more than using them to wipe water. Another trick to enhance the longevity of your S15's wiper blades is to scrape off the ice and snow from the windshield before using your wipers. A layer of ice is known to have sharp edges that can reduce the effectiveness of the micro edge of the rubber wiper blade.

In most GMCs the driver side wiper blade is larger than the passenger side blade - be sure to get the correct size blades for your S15!