2012 GMC Sierra Windshield Wiper Blade Replacement

This guide explains how to replace the...

iFixit Library 2007-2014 GMC Sierra Easy 10 - 15 minutes Guide 224493

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Guide overview

Before you begin

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.

Step 1

Repair step

⌕

Lift the windshield wiper arm away from the windshield until it locks into the service position.
Do not let the wiper arm snap back onto the windshield, as it may crack or scratch the glass.
Press and hold the small release tab on the underside of the wiper blade where it connects to the wiper arm.
Slide the old wiper blade upward until it releases from the wiper arm.

Step 2

Repair step

⌕

Continue sliding the old wiper blade downward until it completely separates from the wiper arm.
Set the old blade aside.

Step 3

Repair step

⌕

Remove the new wiper blade from the packaging and open the adapter cover so it's ready for installation.
Align the adapter on the new wiper blade with the end of the wiper arm.
Slide the wiper arm into the adapter until it is fully seated and aligned.

Step 4

Repair step

⌕

Close the adapter cover until it clicks into place.
Gently pull on the blade to make sure it is securely attached.
Carefully lower the wiper arm back onto the windshield to avoid damaging the glass.
Turn on the windshield wipers and spray the washer fluid to test the new blade.