The United Auto Workers (UAW) union has warned of a coordinated strike against the Detroit Three automakers, if an agreement is not reached on a new contract covering some 150,000 workers.
Negotiations over a new deal began in July but the three automakers - General Motors (GM.N), Ford Motor (F.N) and Chrysler-parent Stellantis (STLAM.MI) - and the UAW have made little headway on the terms of the contract.
The current contract expires at 11:59 p.m. ET on Sept. 14 (0359 GMT the next day). Here is a timeline of events beginning with the election of the new UAW chief in March:
