When a car has an emergency impact, electrical signals are sent to the airbag, and this detonates the airbag, releasing rapidly expanding gasses to stop your body and head from severe physical trauma. All the airbags work in a similar fashion, the only one that is different is the driver steering wheel bag that is placed in a moving object (the steering wheel). Also, the passenger seat airbags have an additional weight sensor that can detect whether an adult or a child is sitting in the seat. The passenger seat airbag will not function under 75 pounds of weight on the seat.
With all these technologies in place, you should still sit back away from the airbag since the deployment is so rapid it can cause or lead to minor bodily harm itself. Also, airbags are designed with motion vectors taking into account a person movements in a sudden impact situation.
Air Bag Issues
There are a number of issues with airbags as there are with any mechanical system. Take into account that a disabled system will not work in an emergency, so make sure you never disable the airbags when setting out for a trip.
There are also internal errors that will trip the car computer system and provide you with a warning light when this comes on it is most probably due to one of these following reasons:
Tools you will need
In the event there is no experienced mechanic to remove your steering wheel airbag, these are the tools you will need to perform this action: