See also:

Safety
Standard safety features include: Side curtain airbags Antilock brakes Electronic stability system ...

Automatic Transmission
If the vehicle is a hybrid, see the hybrid supplement for more information. Vehicles with an automatic transmission have an electronic shift position indicator within the instrument panel cluster. Th ...

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 ...