GMC 2007 Canyon - Manual (Page 110)

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
On a vehicle with manual windows, use the handle
on each door to open and close each window.
110