Workers at the Windsor Assembly Plant have two more weeks to get both of their COVID-19 shots.
In an update on Facebook, Unifor Local 444 President Dave Cassidy said the deadline had been pushed back from December 17 to December 31.
However, he also said Stellantis is firm on its deadline of December 1 for employees to declare their vaccination status.
"The active workers that have not declared their vaccination status as of yet, the company has told us that they are going to start disciplining as of December 1," he said. "They need to put their status in as to whether they're vaccinated or not, whether they're not going to do it, whether they've put in for an exemption."
Stellantis said the delay will give the company more time to go through medical and religious exemptions on a case-by-case basis. It will also allow those who are retiring to do so without worrying about the policy.
A month ago, the union filed a grievance over the mandatory COVID-19 vaccination policy. It said a one-size-fits-all approach was "unreasonable."
At the time, Cassidy said, "We urge our members to get vaccinated. However, these types of policies need to reflect the needs of individual workplaces."
He added the Windsor Assembly Plant had done a good job keeping workers safe during the pandemic. He urged Stellantis to at least pause implementation.
A spokesperson for Stellantis said they believe the vast majority of workers at the plant in Windsor were already fully vaccinated.
"Vaccines and vaccine mandates have proven to be effective, and we feel this is a responsible action to take," wrote LouAnn Gosselin.