See also:

The Inside
SUV fans should find plenty of familiar goodies: a high seating position, excellent forward sightlines — albeit a hefty blind spot in back — and room to stretch out. I found our tester's leath ...

Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑18. ...

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 ...