2010 GMC Savana 2500 Cargo Owner's Manual - Page 122

Express-Down The driver window switch also has an express-down feature that allows the window to be lowered without holding the switch. Press fully and release the window switch marked AUTO to activate the express-down mode. This mode can be cancelled at any time by pulling up on the switch. To open the window part way, lightly tap the switch until the window is at the desired position. Swing-Out Windows Side Swing-Out Window To open the side door swing-out window, pull up on the latch at the edge of the window. Swing the window out and push down on the latch to lock the window into place. To close the window, pull the latch toward you and push down on the latch to lock it. 3-18