NHTSA Complaint #11549289 — 2016 FORD MUSTANG

I recently purchased this Ford Mustang 2016 from a used car dealer and while driving this car couple of times we noticed that the car door got unlatched while driving, it doesn't happen all the time but it happened twice so I started researching and found out that there was a recall for this model but I could get the appointment immediately so by the time I was able to get the appointment the dealer says the recall is expired. I Called the dealer in September of 2023 but I got the appointment on October 9th of 2023. Dealer says recall expired on September 30th 2023. I didn't know that recall's expire at certain period. Please help us so we can drive safe.