2003 GMC Envoy Owner's Manual - Page 83
2003 GMC Envoy Manual
Page 83 highlights
Windows I Leav,,,, ~.1,11\31re11 ,n a vehicle ..ith the winL,ws closed is dangerous. A child can be overcome by the extreme heat and can suffer permanent injuries or even death from heat stroke. Never leave a child alone in a vehicle, especially with the windows closed in warm or hot weather. 2-14
We apologize, but we cannot currently deliver this PDF manual by request of the manufacturer.
We apologize for any inconveniece.