TORONTO — Autoworkers walked off the job at three General Motors facilities in Canada early Tuesday after failing to reach agreement with the automaker. Their union, Unifor, represents more than 4,200 workers at the plants. They had warned they would ...

DETROIT — Ford reached a last-minute deal to avoid a walkout at its Canadian operations late on Tuesday, as the United Auto Workers union prepared for a potential expansion of its U.S. strikes against the Detroit Three automakers. Unifor, which ...