gm headquarters

General Motors (GM, Fortune 500) scored an historic coup recently when it topped Toyota, Honda, and all other automakers in the J.D. Power Associates Initial Quality Study for the first time in the 27-year history of the survey. With GMC the second-ranked brand and Chevrolet fifth, it was a rare burst of good news for the General where little things often point to larger issues that can fester into big problems. At any other auto company, minor incidents would pass without notice, but this is GM.

Recently we posed a few big questions for the automaker’s management. But now a new wave of developments are raising another round of red flags.

NEXT: 1. A cleaner China