The latest battle to save thousands of auto jobs in Ontario is but one of many Canada's largest private sector union will likely have to fight as automation, technology and globalization increasingly change the face of manufacturing, experts say.

GM electric vehicles are eligible for a $7,500 tax credit under federal law, but it is not clear how the administration could restrict those credits.

GM announced Monday it is shutting down five plants in North America, including one in Oshawa, to focus on its electric and autonomous vehicle programs.