GM confirmed Cetinok’s departure to the Detroit Free Press on Nov. 26.

GM placed big bets on the California-based tech experts that worked from the company’s Mountain View offices to revolutionize its approach to software.

Bariş Cetinok, General Motors’ senior vice president of software and services product management, has left the Detroit automaker, the third former Silicon Valley exec to depart in less than a month.

GM cited a restructuring of its software and product businesses that prompted the exodus, beginning with former Apple exec Dave Richardson, who left Oct. 31 as senior vice president of software and services engineering, and Barak Turovsky, GM's first-ever chief artificial intelligence officer who announced he would leave the role created for him Nov. 21 just eight mon

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