The union did not elaborate ahead of a planned video address by UAW President Shawn Fain at 10 a.m.
About 18,300 UAW members are on strike, but that is only about 12% of the total number of union members working at the three automakers.
The UAW launched its walkouts on Sept. 15, its first simultaneous strikes at General Motors, Chrysler parent Stellantis and Ford.
Analysts estimate GM, Ford and Stellantis earn as much as $15,000 per vehicle on each of their respective large pickup truck models.
The UAW, which represents 46,000 workers at GM, 57,000 at Ford and 43,000 at Stellantis, began negotiations with the companies in July.
Persons:
Shawn Fain, Joe Biden, Evelyn, Fain, Ford, Biden, Donald Trump, David Shepardson, Joseph White, Leslie Adler, Jonathan Oatis
Organizations:
United Auto Workers, UAW, REUTERS, Detroit, Ford, General Motors, Chrysler, GM, Strikers, Democratic, Republican, Republican U.S, Trump, Biden, Thomson
Locations:
Belleville, Wayne County , Michigan, U.S, DETROIT, Detroit, Stellantis, Michigan