General Motors said on Monday that it would recall 3.36 million defective cars worldwide, another low point in the seemingly endless safety crisis that has engulfed the nation’s largest automaker.

Once again, the problem had to do with keys that could suddenly turn off engines and deactivate air bags — a problem similar to the deadly defect that G.M. failed to address for more than a decade before it began recalling 2.6 million small cars in February. G.M. has linked at least 13 deaths and 54 crashes to that defect.

The announcement came two days before Mary T. Barra, G.M.’s chief executive, is scheduled to appear before a House subcommittee investigating the small-car defect.

Lawmakers are eager to question Ms. Barra about how G.M. will change its corporate culture in the aftermath of the initial recall and an internal investigation. But Monday’s announcement is likely to produce another round of sharp questions like those Ms. Barra faced in April.