2024 Forester passenger seat airbag not coming on when there’s a passenger.

Hey folks! I bought a brand new 2024 Forester and I love everything about it. However ever since I got it in January I’ve noticed that the passenger airbag won’t be activate/turn on all the time when there’s a passenger in the seat. About 70% of the time the passenger airbag remains off when there’s a passenger in the seat, and 30% of the time it activates and the “passenger airbag on” light will come on. However when it DOES turn on, it’s usually only after about 10mn of driving already. (I’m only driving adults so weight shouldn’t be an issue for automatic detection).

I was hoping it would “work its way out” so I wouldn’t have to make a trip to the dealership as I usually drive alone so it’s not an issue. But we’re using my car for family trips and I don’t feel safe driving passengers without an airbag.

Is there anything obvious I’m missing? The manual says it should automatically detect a passenger.

Thanks!