Cadillac CTS - Manual (Page 103)

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.
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