2013 Chevrolet Silverado 2500 HD Crew Cab Owner Manual - Page 58

2-18 Keys, Doors, and Windows Vehicles with OnStar have three additional control buttons located at the bottom of the mirror. See a dealer for more information about OnStar and how to subscribe to it. See OnStar Overview on page 14‑1. Windows { WARNING Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Cleaning the Mirror Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the front windows are up. To reduce the sound, open either a front window or the sunroof, if equipped. Manual Windows Turn the hand crank on each door to manually raise or lower the manual windows. Power Windows { WARNING Children could be seriously injured or killed if caught in the path of a closing window. Never leave keys in a vehicle with children. When there are children in the rear seat, use the window lockout button to prevent operation of the windows. See Keys on page 2‑1.