Cadillac Escalade Two-mode Hybrid 2009 Owner's Manual page 81

If the vehicle has the tire sealant and compressor kit
shown above, follow the operating instructions
under "Tire Sealant and Compressor Kit (Without
Selector Switch).
CAUTION:
{
Idling a vehicle in an enclosed area with poor
ventilation is dangerous. Engine exhaust may
enter the vehicle. Engine exhaust contains Carbon
Monoxide (CO) which cannot be seen or smelled.
It can cause unconsciousness and even death.
Never run the engine in an enclosed area that has
no fresh air ventilation. For more information, see
"Engine Exhaust" in the owner manual.
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