The United Auto Workers union approved a new contract with General Motors on Friday, ending a strike that idled tens of thousands of workers for almost six weeks.
The union announced the result of the voting by 49,000 union members on its website. It did not provide a tally, but several key locals said their members had backed the accord by wide margins.
GM could call skilled-trades workers, who maintain production machinery, back to work as soon as Saturday to begin preparing plants to resume operations, two people with knowledge of the company's plans said.
In some locations, production could resume as soon as Monday, they said. Other factories that ran short of parts during the strike may take more time to restart.
The contract gives the union's GM workers a series of wage increases and a path for temporary workers to become permanent employees.