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:
Rear Seats
The rear seat has adjustable headrests in the outboard seating positions.
The height of the headrest can be adjusted. Pull the headrest up to raise it. To lower the headrest, push down on the headres ...
Fog Lamps
Fog Lamps
For vehicles with fog lamps, the control is located next to the exterior lamps control on the instrument panel, to the left of the steering column.
The ignition must be in the ON/RUN pos ...
Roadside Assistance Program
U.S.: 1-888-881-3302
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0801
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program.
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