GMC 2005 Savana - Manual (Page 96)

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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