Press Releases

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...