See also:

Headphones
A. Battery Cover B. Channel 1 or 2 Switch C. Power Button D. Volume Control E. Power Indicator Light RSE includes two 2-channel wireless headphones. Channel 1 is dedicated to the DVD player, ...

Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. ...

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 ...