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 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:
Purposeful technology
Comprehensive connectivity is enabled by OnStar's remote vehicle access,
which makes keeping tabs on the vehicle a breeze from anywhere with a smart
phone. Highlights include:
Passive entry
Hea ...
Under the Hood
A 3.5-liter V-6 produces 201 horsepower in front-wheel-drive Terrazas, and
196 hp in all-wheel-drive models. The new 3.9-liter V-6 features variable valve
timing and develops 240 hp and 240 pounds ...
California Proposition 65 Warning
Most motor vehicles, including this one, contain and/or emit chemicals known
to the State of California to cause cancer and birth defects or other reproductive
harm. Engine exhaust, many parts and ...
