GM Accused in Owner Lawsuit of Using VW-Like Defeat Devices

  • Suit alleges diesel pickups are rigged to pass emissions tests
  • GM becomes fifth carmaker scrutinized since VW scandal erupted

GM Accused of Using VW-Like Defeat Devices

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General Motors Co. was sued for allegedly putting defeat devices in trucks to beat emissions tests, making it the fifth carmaker to be accused of diesel cheating since Volkswagen AG admitted in 2015 to flouting pollution rules.

Owners and lessees of more than 705,000 GM Duramax branded diesel trucks filed a class-action lawsuit Thursday, claiming GM installed defeat devices in two models of heavy-duty trucks from 2011 to 2016. The 190-page complaint is littered with 83 references to Volkswagen, and asserts that the environmental damage caused by each truck could surpass that of the German automaker’s vehicles.