GMC 2007 Savana - Manual (Page 116)

Windows
{ CAUTION:
Leaving children, helpless adults, or pets
in a vehicle with the windows closed is
dangerous. They can be overcome by the
extreme heat and suffer permanent
injuries or even death from heat stroke.
Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the
windows closed in warm or hot weather.
Manual Windows
To operate your manual windows, turn the hand
crank on each door to raise or lower your side door
windows.
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