The clock has run out on Stellantis’s Canadian labour agreement, but the factory gates are not suddenly closing. The collective agreement covering more than 9,000 Unifor-represented workers expired at 11:59 p.m. on September 20, leaving the automaker and its Canadian workforce without a renewed deal after negotiations reached an impasse.
Despite the expiry, Unifor is not yet legally able to launch a strike. Conciliation remains underway under Ontario labour law, and workers would still have to complete additional steps before a legal walkout could occur. Behind that procedural pause is a much larger fight over the future of Stellantis manufacturing in Canada—particularly the idled Brampton Assembly Plant, where roughly 2,200 workers have already spent years waiting for production to return.
Contract Expiry Raises the Pressure Without Triggering a Walkout
Stellantis and Unifor entered September trying to replace a three-year agreement negotiated in 2023, but midnight on September 20 arrived without a new settlement. The union represents more than 9,000 employees at Stellantis operations in Canada, and formal negotiations had already stalled after 10 days of intensive talks. Unifor had originally targeted September 11 for a tentative agreement before declaring that negotiations were at an impasse and pausing formal discussions. That makes the contract expiry significant, but it does not mean more than 9,000 employees automatically begin striking the morning after their agreement ends.
Unifor specifically warned members before the deadline that it would not be in a legal strike position on September 20. Employees can therefore continue reporting to work while the dispute moves through Ontario’s labour-relations process. The distinction matters in communities such as Windsor, where Stellantis remains a major industrial employer. For workers arriving for an ordinary shift, the immediate reality can look surprisingly normal even while negotiations have entered one of their most uncertain phases. The pressure has increased sharply, but the legal machinery required for a strike has not finished turning.
More Than 9,000 Workers Are Tied to the Stellantis Negotiations
The negotiations extend well beyond a single assembly line. Unifor says the current bargaining round covers more than 9,000 Stellantis employees at facilities across Canada, with major operations including Windsor Assembly, Brampton Assembly and the Etobicoke Casting Plant. Stellantis workers are also represented in other units, including parts-distribution operations. The previous 2023 bargaining round covered about 8,200 Unifor members, illustrating how the precise workforce covered by agreements can change as production levels, hiring and operating arrangements evolve.
The size and geographic reach of the bargaining units help explain why a dispute centred on one idled Toronto-area factory has become a national Stellantis labour issue. Windsor employees may still have production work, while roughly 2,200 Brampton workers remain on indefinite layoff. Yet Unifor negotiates the major Detroit Three agreements through a pattern-bargaining strategy intended to establish common economic standards while addressing plant-specific issues. A production worker in Windsor, a laid-off employee in Brampton and a worker at Etobicoke therefore enter the same negotiating round with very different immediate concerns. Wages and benefits matter across the membership, but the question of whether particular Canadian plants receive enough future work has become just as important.
Brampton Has Become the Issue Preventing a Settlement
The biggest obstacle is the future of Brampton Assembly. Stellantis idled the facility in December 2023 as workers prepared for a major retooling program that was supposed to give the plant a new generation of vehicle production. More than 2,200 members of Unifor Local 1285 have remained affected by the shutdown. Retooling work was later paused, and in October 2025 the planned Jeep production associated with Brampton was moved to the United States. That transformed what was initially viewed as a lengthy industrial transition into a much deeper argument over whether large-scale auto assembly would return at all.
By the time bargaining formally opened on September 1, 2026, Unifor had made Brampton one of its central priorities. Ten days later, the union said the disagreement over the plant was at the heart of the bargaining impasse. Unifor has maintained that it will not accept a tentative Stellantis agreement without what it considers a suitable resolution for Local 1285 members. For laid-off workers, that makes the dispute unusually personal. Their concern is not simply whether the next contract raises hourly wages by several percentage points; it is whether there will eventually be an automotive job in Brampton to return to.
The Roshel Proposal Changed the Bargaining Equation
The negotiations became substantially more complicated after Stellantis disclosed that it had signed a memorandum of understanding involving Roshel, a Canadian manufacturer of armoured vehicles, over a potential transaction involving the Brampton facility. Stellantis has presented Roshel as a possible route toward restoring sustainable industrial operations at the site after evaluating alternatives for Brampton. The company has said the proposal could preserve the location’s role in advanced Canadian manufacturing rather than leaving the sprawling plant inactive indefinitely.
Unifor sees the proposal very differently. The union argues that replacing automotive assembly with another form of manufacturing would not recreate the same scale of employment, supplier activity and economic impact generated by an auto assembly operation. The memorandum is not the same thing as a completed plant sale, but its emergence during contract negotiations dramatically increased the stakes. Roshel has indicated an interest in affected workers if a transaction proceeds, yet Unifor continues to press for automotive production instead. The disagreement therefore goes deeper than which company name appears above the factory entrance. The central question is whether Brampton remains part of Canada’s passenger-vehicle manufacturing network or begins an entirely different industrial life.
Several Legal Steps Still Separate Workers From a Strike
Ontario labour law explains why the expiration of the agreement did not produce an immediate strike. Unifor and Stellantis remain in conciliation, a process in which a provincially appointed conciliation officer attempts to help the parties reach an agreement. Conciliation is generally a required step before parties governed by Ontario’s Labour Relations Act can legally strike or lock workers out. If conciliation fails, the labour minister can issue what is commonly called a “no-board” notice, which starts another statutory countdown.
Ontario’s guidance says a legal strike or lockout can generally begin on the 17th day after the no-board notice is released. A union also needs a successful strike vote, with more than 50 per cent of those voting supporting strike action. Unifor told Stellantis members that strike votes would be their next major step if the union decides to move toward job action. No strike deadline had been established before the contract expired. This gives negotiators additional time, but it should not be mistaken for a resolution. The process delays when a strike can legally start; it does not eliminate the possibility that one eventually will.
Windsor and Etobicoke Workers Have Their Own Job-Security Questions
Brampton dominates the dispute, but it is not the only Canadian operation under scrutiny. When Unifor declared an impasse on September 11, the union said Stellantis had not provided the production forecasts it wanted for Windsor Assembly and the Etobicoke Casting Plant. Unifor entered bargaining specifically identifying production volumes at both facilities as priorities. That reflects a lesson Canadian autoworkers have learned repeatedly: wage increases can provide immediate financial gains, but long-term security ultimately depends on what a manufacturer commits to building at each plant.
Windsor provides an important contrast with Brampton. Unifor announced in September 2025 that Stellantis planned to restore a third shift at Windsor Assembly during the first quarter of 2026, and Stellantis employment postings during 2026 have continued to describe three-shift operations at the facility. That makes Windsor an active manufacturing centre while Brampton remains idle. Still, Unifor Local 444 leadership has argued that workers cannot view Brampton’s problems in isolation because product decisions can migrate from one factory to another. For thousands of families connected to Canadian Stellantis operations, obtaining credible future production commitments has therefore become part of the economic value of the new collective agreement itself.
Ford and GM Have Already Set an Economic Benchmark
Stellantis entered negotiations after Unifor had already completed agreements with Ford and General Motors, giving both sides a clear economic benchmark. Ford’s three-year agreement established annual general wage increases of 3 per cent and maintained cost-of-living protections. By the end of that deal, full-rate production wages are scheduled to reach $50.20 an hour and skilled-trades wages $62.71 an hour. Eligible Ford workers also received a $10,000 productivity and quality bonus along with a $2,000 first-year December payment.
General Motors subsequently adopted the same 3 per cent annual wage pattern for more than 4,600 Unifor members while making more than $1 billion in investment commitments at Canadian facilities. Unifor has said Stellantis offered only conditional agreement with the economic pattern, with the conditions connected to Brampton’s closure. That helps explain why the Stellantis round has proven harder to settle despite the existence of a wage template. The dispute is no longer mainly about calculating wage percentages. Unifor is trying to combine the established economic package with plant and product commitments that it believes protect the company’s Canadian manufacturing footprint.
What Happens Next Could Reshape Stellantis’s Canadian Footprint
The immediate roadmap contains several possibilities rather than one fixed deadline. Formal contract talks were paused after the September 11 impasse, but Unifor has continued assessing its bargaining and legal options. Conciliation can still produce movement. The parties could resume direct negotiations. Strike votes could be scheduled if the union decides greater pressure is necessary. And even after obtaining a legal strike mandate, Unifor would not necessarily be required to immediately call a walkout. The objective publicly stated by the union remains a negotiated settlement.
At the same time, the bargaining fight has expanded beyond the traditional company-union relationship. Ottawa is involved in a separate dispute with Stellantis over previous commitments connected to Brampton, while Industry Minister Mélanie Joly has said the federal government wants a new Stellantis model assigned to the plant. Unifor has also asked Ottawa for information about discussions surrounding the proposed Roshel arrangement. That leaves several intertwined negotiations unfolding at once: wages and benefits for more than 9,000 employees, the legal path toward possible job action, Brampton’s ownership and future production, and Stellantis’s broader Canadian investment plans. The contract has expired, but the decisions with the greatest long-term consequences are still unresolved.
