In Michigan, workers with the Nexteer Automotive Group went on strike on Tuesday after rejecting a contract that was proposed. The workers, who are represented by the United Auto Workers union, produce vehicle parts that are essential to General Motors among other car manufacturers. As of Tuesday evening, approximately 3,200 workers were participating in the strike. Nexteer issued a statement saying that they were in negotiations with the UAW to resolve these issues as quickly as possible.
See "UAW Launches Strike at Auto Supplier Nexteer's U.S. Operations", December 8, 2015