DETROIT—General Motors plans to invest $1.3 billion in five manufacturing sites in Michigan, Ohio and Indiana.

SPRING HILL, TN—GM will add 384 jobs at its assembly plant here to make two as-yet unnamed products.

DETROIT—GM CEO Dan Akerson plans to retire, and the automaker will appoint Mary Barra as his successor. GM’s senior vice president for product development, Barra will become the first female CEO of a major automaker.

DETROIT—The Treasury Department yesterday sold the last of its shares of GM stock, underscoring the domestic auto industry’s rebound from the deepest downturn since the Great Depression.

DETROIT—GM is investing $24 million in electrical generation equipment that will allow the company to use more landfill gas at its assembly plants in Fort Wayne, IN, and Orion, MI. The new equipment will generate more than 14 megawatts of electricity from landfill gas, saving a combined $10 million in energy costs each year at the facilities.

ROCHESTER, NY—Perseverance and creativity enabled a 75-year old GM assembly plant here to go landfill-free. The journey took four years and included seven attempts to recycle a challenging oily filter sludge generated from a machining operation.

DETROIT—The U.S. government expects to sell the last of its stake in General Motors by the end of the year, bringing an end to a sad chapter in the 105-year-old auto giant’s history.

DETROIT—A shortage of axles has slowed production at GM’s pickup assembly plant here.

OSHAWA, ON—GM will continue to operate its assembly plant here through 2016. The line was due to shut down next summer.

ARLINGTON, TX—The new stamping facility at GM’s assembly plant here is running and producing sheet metal parts. The automaker plans to add 180 jobs at the facility.