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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.
All Sierra's benefit from enhancements to the OnStar and XM NavTracffic systems, while models fitted with the 5.3-, 6.0- and 6.2-liter engines gain a new six-speed automatic transmission. An E85-compatible 6.2-liter V8 is also now available on SLT and Denali trims.
Long regarded as the twin of the Chevrolet Silverado, the all-new-for-'07 GMC Sierra offers more differentiation from its General Motors stable-mate in looks, while sharing the same basic architecture and engine choices. Exclusive to the GMC Sierra line, though, is the Denali trim level that brings with it a variety of power and luxury features, making it a "model-within-a-model." Looking to extend their leadership in the pickup truck segment, GM engineers and designers have gone back to their computer screens to concoct a vehicle that offers an improved chassis, more precise steering and not one but two quieter, more upscale interiors. Like its fraternal twin, the GMC Sierra delivers fuel economy that currently leads the large pickup truck category thanks to the new line of Active Fuel Management-equipped V8 engines. And for those who hedge their bets, a Flex-Fuel E85-capable engine is also available.