Press Releases

GMC SIERRA 1500 / SIERRA DENALI

From job-ready Work Truck models to the unique combination of performance and luxury that is the Sierra Denali, the GMC Sierra lineup is one of the broadest in the industry. Powerful Vortec-based powertrains, backed by fuel-saving six-speed automatic transmissions, help Sierra models deliver among the industry's best fuel economy and performance - all with responsive ride and handling traits, and an exceptionally quiet driving experience. A special Sierra XFE crew cab model is EPA-rated at 22...

2009 GMC SIERRA ADDS SIX-SPEED AUTOMATIC, ENHANCED CONVENIENCE FEATURES

GMC Sierra continues to lead the industry in fuel economy, capability and power, all delivered with responsive ride and handling traits, and an exceptionally quiet driving experience. The lineup includes everything from job-ready Work Truck models to the unique combination of performance and luxury that is the Sierra Denali. For 2009, the Sierra lineup enhances its segment-best fuel economy with a new six-speed automatic that is paired with V-8 engines (except the 4.8L). Additionally, the 6.2L...

2009 SIERRA HYBRID DELIVERS 25-PERCENT IMPROVED FUEL ECONOMY WITH ALL OF GM

GMC announced the 2009 GMC Sierra Hybrid, a powerful full-size pickup that achieves 40-percent greater city fuel economy and a 25-percent improvement in overall fuel economy while delivering the capability expected of a full-size truck - including a 6,100-pound (2,767 kg) towing capacity. Partnering General Motors' patented two-mode hybrid system and a powerful 6.0L gas V-8, the Sierra Hybrid delivers highly efficient performance, including all-electric driving up to 30 mph (48 km/h). That allows fuel savings...