GM is trimming its software teams globally by more than 1,000, possibly up to 1,500. The company says it's for efficiency, not cost cutting.

The promotions were meant to fill the gap left by Mike Abbott, another Apple veteran who had joined GM as its executive vice president of software and services.

GM is trimming its software teams globally by more than 1,000, possibly up to 1,500. The company says it's for efficiency, not cost-cutting.

After issuing a sales halt on Monday due to software problems on its midsize pickups, GM now says it has a fix.