This manual covers the GMC Sierra pickup truck models from the 2007 to 2010 model years, built on the GMT900 platform. Known for its robust construction, powerful engine options ranging from the 4.3L V6 to the 6.6L Duramax diesel, and impressive towing and payload capacities, the Sierra is a versatile full-size pickup truck designed for work, towing, and family use. Its strong reputation for durability and reliability, coupled with available features like advanced infotainment systems and driver assistance technologies, makes it a competitive choice in the full-size truck market.

This comprehensive Factory Service Manual provides detailed information for the maintenance, repair, and diagnosis of your GMC Sierra. It covers all major systems, including engine mechanical and electrical, transmissions, drivetrain, suspension, steering, brakes, and the electrical system. You will find in-depth procedures for routine maintenance, engine and transmission overhauls, brake system repairs, electrical troubleshooting, and body work, along with technical specifications and diagnostic trouble code information. This manual is an essential resource for owners, mechanics, and technicians to ensure the proper upkeep and longevity of the vehicle.