Automaker Stellantis will temporarily shut down its assembly plant in Windsor, Canada, the local union said Wednesday.The closure will start on April 7 and will last for two weeks. The decision came one day before President Donald Trump’s 25% auto tariffs officially went into effect.”The company said there are multiple factors at play, with the primary driver behind the final decision being this afternoon’s announcement from U.S. President Donald Trump of the U.S. tariffs,” President of Unifor Local 444 James Stewart said. “This has and continues to create uncertainty across the entire auto industry. This is not just affecting our plant—it’s impacting facilities in the U.S. and Mexico as well.”More scheduling changes were expected in coming weeks, Stewart said.Honda yet to respond to tariffsHonda Chief Executive Toshihiro Mibe said Thursday that the Japanese automaker will take some time to look at the market situation and other factors to determine the …