I have a '24 F-350 SWD Lariat ultimate with max reclining seats. I ordered the truck middle of February and came in May. The one thing I noticedand thought strange was when someone is sitting in the front passenger seat and/or rear seats I can drive down the road and there are no warning signals telling me someone is in those seats, not buckled up etc. I can be on the highway going the posted speed limit and those sitting in the seats don't have to be buckled because their are no seatbelt signals going off. This seems odd to me since the NTSB is so intent on having occupants in a vehicle buckled in while a vehicle is in motion. All my other vehicles require those in seats to be buckled in for alarms not to sound.
However, once a passenger buckles up then the "system" works showing green on the seat belt display screen. If the passenger unbuckles then the seat belt alarm goes off.
Once the truck is turned off then started again their is no indication for passengers to buckel up.
I asked the salesman about this and did not get a answer if this was normal or not.
so, I ask... is this a normal function or are the seat sensors not functioning properly on this Super Duty?

 

On my 22 I can toggle on or off the rear seat occupancy alerts through the dash or infotainment.

 

Been a lot of talk about this. My '19 has no seat belt reminder for the passenger either, which I thought was ODD. Apparently anything over 8,500 GVWR can follow different government rules.

 

There are other threads on this subject.
I'm on my phone and can't locate them but a search might find them.

 

My 23 acts that way, maybe it is because we put stuff on the seats and they didn't want alarms going off due to stuff vs people. It would be real annoying to have to buckle up a bag of feed or your big dog.

 

My '22 Lariat/Ultimate has a selectable screen in the gauge cluster that shows which positions are/aren't buckled. A chime alerts if a belt is unbuckled after having been buckled.

 

Makes me wonder if the seat does not recognize a person in the seat, what about the airbag system?

 

Makes me wonder why the NTSB would allow different rules when it come to safety standards?
Government plays by their own rules I guess. For example, Ford diesels used in military service are stripped of all emissions equipment. Oh well...

 

Still very new-to-me F250, but I picked someone up a couple days ago and the rear middle seat showed as unbuckled, along with chime. There was a very small amount of stuff I had put there beforehand - less than 5# - but I asked the pax to put it on the floor to stop the warning. No change. After about 2 minutes the warning chime stopped although it still showed "unbuckled" on the dash. Similarly, I test-drove an XL or XLT a few months ago and it said the middle front seat was unbuckled. There was no one and nothing there. Had to plug the seatbelt in to get the warning to stop.
Technology is great. Until it's not...