The UAW, which had recently escalated its efforts by striking pickup truck plants at Ford and Stellantis, hadn't expanded its strikes at GM since Sept. 29.
During the last round of contract bargaining four years ago, a national 40-day UAW strike against GM cost the company about .
During the earnings call, Jacobson had declined to estimate how much the impact of the strikes would increase if expanded to other plants such as Arlington, which the union had previously threatened as a potential target.
"We're trying to prepare the best we can to whatever decisions they might make, but we remain optimistic and hopeful that we'll make progress and get this resolved going forward," he said.
