Unifor and General Motors have reached tentative labour agreements covering more than 4,600 auto workers at four Ontario facilities, the union announced on Saturday August 22, 2026. The agreements, which must be ratified by union members, were unanimously endorsed by Unifor's bargaining committee.
The tentative contracts cover workers at the Oshawa Assembly Plant, the CAMI Assembly Plant in Ingersoll, the St. Catharines Propulsion Plant, and the Woodstock Parts Distribution Centre. Details released by the union indicate the three-year deal includes three per cent wage increases in each year, a $10,000 productivity bonus for eligible members, and a new December bonus.
GM also committed to invest $144 million to add production of next-generation GMC Sierra heavy duty trucks to the Oshawa Assembly plant. In addition, the company plans to invest $215 million in the St. Catharines plant for next-generation transmission assembly, scheduled to begin in 2029, which the union says will create 250 new jobs.
The agreement includes a written pledge from GM not to close or sell the idled CAMI plant in Ingersoll while the company looks for new program opportunities. The CAMI plant will also be the "first consideration" for allocation of Canadian Armed Forces defence work if GM is awarded the contract by the Government of Canada.
Unifor says it also negotiated a new "innovative program" to help reduce layoffs in Oshawa, following the shelving of a third shift at the plant in January. According to union officials, Oshawa Assembly is expected to operate on two shifts for the duration of the 2026 collective agreement, based on current customer demand and company volume forecasts.
Lana Payne, Unifor's national president, said in a statement: "Our bargaining committee worked diligently to reach these agreements, which deliver strong income and benefit gains, amid some of the most challenging times in our history."
Talks between Unifor and GM Canada began on August 10, following the union's agreement with Ford Motor Company, which included three per cent annual pay increases and a renewal of a no-closure agreement. Unifor's top bargainer with GM said the tentative deals are in line with the pattern set by the Ford agreement.
Jack Uppal, president and managing director at GM Canada, said the deal builds on GM's investments in Canadian manufacturing. He added that further details of the agreements would be shared later to respect the ratification process.
Ratification meetings for union members are scheduled for August 29 and 30. Once the GM contracts are ratified, the union is set to move on to labour talks with Stellantis, amid headwinds for the auto sector that include S. tariffs, the Trump administration's decision not to extend the Canada-United States-Mexico Agreement, and the introduction of Chinese electric vehicles into Canada.