GM's top executives, staff scour social media seeking car defects

New York

AMID the worst safety-defect crisis in its history, General Motors Co executives and staff have taken to social media to find customer complaints and identify quality issues long before they become a crisis.

GM, which faces lawsuits for dragging its feet before recalling a faulty ignition switch that's connected to at least 35 deaths, is now mining every source of information to head off another crisis, president…