Introduction
This guide explains how to replace the windshield wiper blades on a 2012 GMC Sierra. Wiper blades clear rain, dirt, and debris from the windshield so you can see while driving. If your wiper blades leave streaks, skip across the glass, or make excessive noise, they should be replaced.
What you need
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Lift the windshield wiper arm away from the windshield until it locks into the service position.
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Press and hold the small release tab on the underside of the wiper blade where it connects to the wiper arm.
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Slide the old wiper blade upward until it releases from the wiper arm.
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Continue sliding the old wiper blade downward until it completely separates from the wiper arm.
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Set the old blade aside.
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Remove the new wiper blade from the packaging and open the adapter cover so it's ready for installation.
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Align the adapter on the new wiper blade with the end of the wiper arm.
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Slide the wiper arm into the adapter until it is fully seated and aligned.
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Close the adapter cover until it clicks into place.
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Gently pull on the blade to make sure it is securely attached.
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Team
Austin Community College, Team A-8, Serna Summer 2026 Member of Austin Community College, Team A-8, Serna Summer 2026
AUSTINCC-SERNA-SU26SAG8
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