Canadian auto workers, after forging a deal to avert a strike against Ford, walked out on General Motors after talks with that Detroit automaker failed.

More than 4,000 workers struck among three GM plants in Canada Tuesday.

“This strike is about General Motors stubbornly refusing to meet the pattern agreement,” said Unifor National President Lana Payne in a statement about the strike.

Payne said the union is resolute that GM must agree to the same terms as Unifor worked out last month with Ford in order to end the dispute with the second major Detroit automaker.

“The company continues to fall short on our pension demands, income supports for retired workers, and meaningful steps to transition temporary workers into permanent, full-time jobs.” 

Unifor agreed to a new three-year contract with Ford in late September, averting a strike against that brand after getting pension upgrades and wage hikes, among other things.

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