NHTSA Complaint #11649864 — 2023 FORD F-250 SD

I have a safety concern on my 2023 Ford 250 SuperDuty Pickup. The front passenger seatbelt indicator does not engage when a person sits in the seat.   The other 4 seats (front driver & 3 back seats) in the vehicle engage as soon as a person sits in the seat showing the seat red in the on the dash until the seatbelt is engaged and then turns green with a check mark on it.   When a person sits in the front passenger seat the seat does not light up on the dashboard like there is no one sitting in the seat.  Once the seatbelt is clicked in, the seat then turns to green with a check mark and then if the seatbelt is unclicked the seat will turn red. I took the vehicle in to be looked at.  The Ford Dealership put in a new part and it reacted the same way.  They then said that they checked and the seat was working as designed and there was no issue.  I asked them to confirm that the airbags would still engage.  They would not confirm that.  I then called Ford's Hotline with my concerns, they said based on what they could see, the airbags would still engage. I feel that all the seats should react the same way and if a person is sitting in that front seat and doesn't use the seatbelt, the vehicle doesn't recognize that a person is in the seat.  And if so, possibly the airbags do not work.