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GM Canada to Cut Shift at Oshawa Plant, Citing Demand and Trade Pressures

The move, effective this fall, affects 3,000 workers and has drawn sharp criticism from Unifor and Ontario officials.

An autoworker is seen on the General Assembly line  producing the Chevrolet Silverado, at the GM plant  in Oshawa, Ontario, on Tuesday, February 22 2022. THE CANADIAN PRESS/Chris Young
BrightDrop electric delivery vans are parked near General Motors (GM) BrightDrop unit's CAMI EV Assembly, Canada's first full-scale electric vehicle manufacturing plant, in Ingersoll, Ontario, Canada, March 13, 2025. REUTERS/Carlos Osorio/File Photo
The GM auto assembly plant in Oshawa, Ontario on March 4, 2025. With a large auto industry supporting thousands of jobs, the city is bracing for the impacts of US tariffs.
March 4, 2025.
(Sammy Kogan/The Globe and Mail)
General Motors has reduced the number of shifts at this assembly plant in Oshawa, Canada

Overview

  • GM Canada announced it will reduce operations at its Oshawa Assembly Plant from three shifts to two, starting this fall.
  • The decision comes in response to declining demand forecasts and the impact of U.S. tariffs on Canadian-built vehicles.
  • Unifor, representing the plant's workers, called the decision 'reckless' and warned of potential ripple effects on the auto parts supplier network.
  • Ontario Premier Doug Ford described the news as 'extremely tough' for workers, reaffirming the province’s commitment to supporting the auto sector.
  • This follows GM Canada's recent production halt at its CAMI plant in Ingersoll and Stellantis’s planned temporary closure of its Windsor plant next week.