1998 GMC Savana Van Owner's Manual - Page 280

Windshield Wiper Blade Replacement 7. Turn the bulb to the left to remove it. Install the new bulb. 8. Reverse the above steps to reinstall the lamp. See "Normal Maintenance Replacement Parts" the in Index for the proper type of replacement blade. Replacement blades come in different types andare removed in different ways. To remove the type witha release clip: 1. To remove the old wiper blades, lift the wiper arm until it locks into a vertical position.