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Windshield Wiper Blade Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Wiper Arm Components
GM1572362Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Raise the wiper arm to the full up position (service up).
1 Windshield Washer Arm Assembly
2 Windshield Wiper Arm Blade Removal Tabs
Tip:  Squeeze both tabs and rotate the blade away from the arm to remove.
3 Windshield Washer Blade Assembly
Tip:  Discard if rubber appears worn or does not wipe the windshield clean.