Mary Barra Says Saddest Day Of Her Career Was Learning That Everything Bad Said About GM Was True

General Motors CEO Mary Barra says the Detroit automaker has implemented about 90 percent of the recommendations in a devastating internal report into the company's ignition switch crisis and is reviewing its systems structure.

In a cover story in Time magazine, Barra opens up about one of the worst periods in the Detroit automaker's history. The company has recalled more than 26 million vehicles this year including 2.6 million older Cobalt, Ion and other cars linked to at least 21 deaths and 54 crashes.

"The day I read (the Valukas report) was one of the saddest days of my career," Barra told Time. "The most frightening part to me was that (the report) said everything that everyone's criticized us about (over the years).