This kind of sounds silly but I noticed that when I am in the car by myself in the front seat, I don't notice the Airbag On light in the dash only Airbag Off. When someone else is with me in the front seat, the Airbag On light is on. Is this normal? I looked in the manual and it doesn't mention anything about the Airbag On light to be on even if it is only one person in the front. If this is right, then how do we know if the Airbag is really on when you are by yourself.