Cruise CEO Ammann Leaving GM’s Self-Driving Car Unit

Dan Ammann, chief executive officer of Cruise, a Honda and General Motors self-driving car partnership, speaks on stage at the launch of the Cruise Origin autonomous vehicle in San Francisco, Calif., on Jan. 21, 2020. Stephen Lam/Reuters

WASHINGTON—General Motors Co. said on Thursday that Dan Ammann, the chief executive of its majority-owned Cruise self-driving car subsidiary, is leaving the company, effective immediately.

The U.S. automaker did not give a reason for the departure of Ammann, a former GM president and chief financial officer.