Windows

WARNING!
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.

The vehicle aerodynamics are

The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when a window is partially open. To reduce the sound, open another window or the sunroof (if equipped).

See also:

Ignition Positions (Key Access)
The ignition switch can be turned to four different positions. To shift out of P (Park), the ignition switch must be in ON/RUN or ACC/ACCESSORY and the brake pedal must be applied. Notice: ...

Rear Storage Area
WARNING An improperly latched and closed cargo cover, or cargo cover left in the open position, could be thrown about the vehicle during a crash or sudden maneuver. Someone could be injured. Be s ...

2011 Cadillac CTS Review
Since its 2008 redesign, the Cadillac CTS has been a car you could point to as evidence that GM can build world-class cars. It's classy, through and through, and proves that when the automaker put ...