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. ...