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:

Climate Controls
The heating, cooling, and ventilation in the vehicle can be controlled with this system. Climate Control with Cooled and Heated Seats shown A. Driver and Passenger Temperature Controls B. AUTO ...

Engine Power Messages
ENGINE POWER IS REDUCED This message displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but there ...

Cadillac CTS-V Review
In an effort to take advantage of its recent return to popularity, Cadillac decided to build high-performance versions of several of its cars. Collectively called the V-Series, they are meant to be ...