See also:

2011 GMC Sierra 2500HD Review
The "professional grade" brand unveiled the 2011 GMC Sierra Heavy Duty lineup at the 2010 NTEA Work Truck Show. Most of the technical specifications of GM's HD pickups are identical, but ...

Windows
Press the switch to lower the window. Pull the switch up to raise it. For more information, see Power Windows on page 2‑21. ...

Speedometer
The vehicle's speed can be selected to display on the Driver Information Center (DIC) and the speedometer in either kilometers per hour (km/h) or miles per hour (mph). Telltales on the speedom ...