GM Canada Extends Summer Shutdown at Two Factories by Matt Posky June 21, 2017June 21, 2017 Share Comments General Motors Canada will idle a pair of Ontario factories longer than usual this summer as it struggles with lagging demand. If that sounds familiar, it’s because GM has taken the exact same approach with two factories in the United States. On Monday, the automaker confirmed it will also be eliminating the overnight shift for Chevrolet Malibu production at its assembly plant in Kansas City. That follows a trio of shift eliminations at three plants in Michigan and one in Ohio since the beginning of the year. It appears that Canadian jobs could now be in danger. “In keeping with GM’s strategy to evaluate market demand and adjust production schedules accordingly, Oshawa Assembly flex line employees and St. Catharines HFV6 line were advised of some additional down weeks,” company spokeswoman Jennifer Wright said in an email to Automotive News Canada. Oshawa is responsible for assembly of the Cadillac XTS, Chevrolet Impala and overflow of the Equinox. Production of the SUV is scheduled to end this summer — replaced by the GMC Sierra and Chevrolet Silverado, according to sources from Unifor Local 222. General Motors refused to speculate on the amount of time it might add to the traditional two-week summer shutdown at the two Canadian facilities. “We do not comment on the specifics of our production schedules, which are subject to change,” Wright explained.