Windows; Manual Windows - GMC Sierra Classic 2007 Owner's Manual

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

Turn the hand crank on each door to manually
raise or lower the manual windows.
125