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The 2012 GMC Sierra sports a new four-bar grille and offers heated and cooling seats on the SLT trim. StabilitTrak stability control gains Trailer Sway Control and hill start assist, while cruise control is made standard on the Work Truck. The 2012 GMC Sierra Denali truck gains heated and cooling front seats, a heated steering wheel and a rear backup camera.
The 4.8-liter, 5.3-liter and 6.2-liter V8 engines are now E85 Flex-Fuel compatible; the 4.8- and 5.3-liter engines also gain variable valve timing. New standard features on all 1500 models include side-curtain and front seat-mounted side-impact airbags as well as StabiliTrak stability control. New available features include a USB port on all but the base radio, a six-speed automatic transmission on Regular and Extended Cab models with the 5.3-liter engine and greater availability of the rear backup camera option.
Thanks to a complete overhaul last year, the GMC Sierra pickup line for 2015 arrives just in time to do battle with latest Ford F-150, Ram 1500, Toyota Tundra and Nissan Titan. Although it shares much of its chassis and mechanicals with the Chevrolet Silverado, GMC stamps its own upscale brand on the Sierra, giving it the feel of a work truck for the boss rather than the crew. It is true that the basic Sierra work truck isn't all that plush, but move up the line to the Denali model and you'll find more leather and chrome than in a Texas rodeo gift shop. A choice of V6 or V8 engines is offered, as is a new 8-speed automatic transmission.