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These leadership takeaways are part of a new primetime series, CNBC Leaders Playbook, with all new episodes Wednesdays at 10 p.m. ET/PT. Hosted by CNBC’s Julia Boorstin, the series goes inside the minds of the world’s top business leaders to reveal how lasting success is built.

General Motors CEO Mary Barra says leadership isn’t about delaying hard conversations.

The moment you know something is wrong, acting fast protects people, trust, and the business, she says.

Less than a month after becoming CEO, Barra was hit with one of the biggest crises in GM’s history. Faulty ignition switches in Chevy Cobalts and other vehicles caused cars to stall, shut off power, and disable airbags — sometimes just moments before a crash.