(Bloomberg) — General Motors Co. is recalling an additional 2.7 million vehicles, including models with faulty brake lights that have led to hundreds of complaints, pushing the automaker's total number of cars and trucks called back for fixes in the U.S. this year to 11.1 million.

The new total for the year so far is more than GM recalled during the previous six years combined. Chief Executive Officer Mary Barra is grappling with the recall of 2.59 million cars to fix a defective ignition switch linked to at least 13 deaths. She reorganized the engineering department, added personnel to investigate problems and introduced a program to encourage employees to flag safety concerns. An internal report is due later this month.

The bulk of today's five recalls cover 2.44 million Chevy, Pontiac and Saturn cars dating back to the 2004 model year. Corrosion can affect wiring and cause brake lights to fail to illuminate, Detroit-based GM said today in a statement. The company has received hundreds of complaints and said it's aware of 13 related crashes and two injuries. GM said it doesn't know of any fatalities.