Introduction
See also:
New for 2012
The Canyon sees only some minor changes for 2012. A Bodyguard Package
provides bed rail covers and molded splash guards, and an available Chrome
Accessory Package includes a chrome exhaust tip and ...
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 ...
Special Application Services
• Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
• Have underbody flushing service performed once a year. ...





