Key TakeawaysCar manufacturer Stellantis is delaying plans to reopen an Illinois assembly plant, which the United Auto Workers (UAW) union says is breaking its labor contract.The automaker claims the UAW can't legally strike over the decision.UAW locals representing tens of thousands of workers in several states are preparing to file grievances. Stellantis (STLA) said Tuesday that its plan to delay the reopening of an assembly plant in Belvidere, Illinois, is not in violation of its contract with the United ...