Local union leaders on Friday endorsed a tentative agreement between General Motors Corp. and the United Auto Workers that would require GM to pay at least $35 billion for retiree health care and offer an unprecedented number of promises for future work at U.S. plants, according to a summary of the agreement provided by the UAW.

The agreement remains subject to a vote of GM’s 74,000 UAW members, expected to be completed by Oct. 10. UAW President Ron Gettelfinger said he was confident that Ford Motor Co. and Chrysler LLC would match many of its terms.