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Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...

Auxiliary Devices
For vehicles equipped with the MyLink or IntelliLink infotainment system, see the separate MyLink/ IntelliLink Features and Functions Guide for more information. This vehicle has an auxiliary input ...

Audio Output
Audio from the DVD player or auxiliary inputs can be heard through the following: ○ Wireless Headphones ○ Vehicle Speakers The RSE system transmits the audio signal to the wireless head ...