So in an accident where the brakes failed, the seatbelts didn't lock and the airbags did not deploy, three different systems in the car failed? This is speculation in the accident so far, but it is being investigated. We know for sure the airbags did not deploy, and it seems from the injuries that the seatbelts did not lock. We are unsure about the brakes, but eyewitness accounts seem to suggest the brakes may have failed to cause the accident. Just wanted to understand the mechanisms for myself. Thank you for the input. It makes more sense to me now.
BTW, no children were in this particular accident. Two adults were involved, one passed away and one is in ICU. It is under investigation, but for the sake of the airbags failing alone, I will say that the car was a 2006 Chrysler 300 with very few miles on it. I have found (online) that they have had a lot of problems with steering, brakes, and airbags on these cars lately. Please look into it if you or someone you know owns one of these cars. Just have the car checked to make sure your systems are in working order. I'm not trying to cause a panic, just informing of the possibility.