A sweeping internal investigation of General Motors released on Thursday condemned the company for its decade-long failure to fix a deadly safety defect, one that led to “devastating consequences,” including at least 13 deaths.
The report, written by the former United States attorney Anton R. Valukas, set off the dismissal of 15 G.M. employees, including a vice president for regulatory affairs and a senior lawyer responsible for product liability cases, and forced broad changes in how the company handles vehicle safety.
