Air Bag Not Deploy problems of the 2014 Nissan Leaf

There is an air bag light that illuminates when there is weight on the passenger seat but the air bag will not be deployed, maybe because the vehicle thinks there is a dog, small child, or inanimate object sitting in the seat. The trouble is that the "air bag disabled light" occasionally turns on when my teenage sons sit in the passenger seat. The dealer says it is because my sons do not always sit squarely to the back of the seat; that is, they occasionally slouch in the seat. I have videos of this behavior which I can send to you, so you can determine it is is something you would like to look into. Nissan's response is akin to steve jobs saying of the iphone 4, "you're holding it wrong. " I think Nissan should build their sensors for the way people sometimes sit in their seats, not as the way they would like them to sit under idea circumstances. They probably have one sensor at the back of the seat, when they actually need another in the middle and maybe one at the front to better judge the weight of the object in the seat.