The Cobalt, produced from 2005 to 2010, is a compact car known for its sporty styling and value proposition, offering available performance variants. Replacing the Cavalier, the Cobalt was manufactured in Lordstown, Ohio, and competed with established models like the Honda Civic and Toyota Corolla. Its engineering focused on delivering reliable transportation with a range of powertrain options, including the 2.0L Ecotec engine in various configurations, with a 2.0L supercharged variant available for performance enthusiasts. Safety features like standard front airbags and available side-impact airbags, along with notable crash test ratings for certain model years, contributed to its market presence. This factory service repair workshop manual provides comprehensive coverage for all repairs, servicing, and troubleshooting procedures for the Cobalt (2005-2010). It details all major systems, including powertrain, transmission, chassis, and electrical components, offering in-depth guidance on maintenance tasks such as oil changes and spark plug replacements, as well as complex repair procedures like engine overhauls and transmission rebuilds. The manual includes diagnostic charts, electrical circuit diagrams, and hundreds of detailed photos and exploded diagrams, empowering home mechanics and professional technicians to effectively maintain, diagnose, and repair the vehicle, ensuring optimal performance and longevity.