See also:

Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain ...

Power Outlets
The vehicle has 12-volt accessory power outlets which can be used to plug in electrical equipment, such as a cell phone or MP3 player. The power outlets are located: • On the instrument panel belo ...

Finding a Category (CAT) Station
To find XM channels in a category: 1. Press the CAT button to display the category tabs. Continue pressing the CAT button until the desired category name displays. • Radios with CD and DVD can als ...