GMC 2006 Sierra - Manual (Page 112)

Swing-Out Windows
Your vehicle may have
swing-out windows. To
open a rear swing-out
window, flip the latch open
and swing the glass out.
The latch will catch when the window is fully open and it
will also hold it in the open position.
Sliding Rear Window
If your vehicle has this feature, squeeze the latch in the
center of the window and slide the glass to open it.
When you close the window, be sure the latch is
engaged.
The sliding rear window does not have rear defogger.
Sun Visors
Pull the sun visor down to block glare. Swing the sun
visor to the side to cover the side window.
The passenger’s side sun visor may have a vanity
mirror.
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