12/14/2020
Are air bags important to you ?
I just came from doing an inspection on a damaged car that was rear ended when it slowed down for some deers on the road while a car coming from behind did not pay attention, ramming into the first one at high speed. The first car is a total loss and although all 3 occupants got off with some muscle and back pain, all and all , it could've been much worst.
The first thing the owner told me when I looked at the car was that the air bags neglected to go off. He said it as if he was entitled to the air bags and he was pi**ed off that they did not work for him.
Air bags are not a guarantee and they do not always deploy. The system is also primarily designed to deploy from the car facing an abrupt stop when hitting something, more in line with the car hitting something rather than being hit from another car.
A classic example is from a front impact, triggering front sensors or side sensors that decides from the impact point which air bag to deploy , ie : steering , instrument cluster, seat, headliner etc...
Not wanting to get into technical details that will likely surpass my knowledge of the subject, the air bags systems are designed to help save lives but to activate them, the system needs to be subjected to some predisposed conditions to work effectively.
The air bags deploy when the sensors are triggered. So the first rule of thumb is that if you don't hit the sensor or trigger it from being close to the impact point , most of the time, air bags will not deploy. For example, that I know, most cars on the market today have little to no sensors on the back so in the event of a rear impact, usually no airbags will be deployed.
For the most part, the less expensive is the car, the less sensors it has. Simply put, some cars have tons of sensors, some less. Usually, the most expensive cars have more sensors but some manufacturers will stake their reputation on safety and therefore will likely have more protection built into them than others for the same price . SAAB is a good example, likely at the far side of the safety margin compared to others.
So for today, my message is simply put that air bags are not a guarantee, that some cars have more sensors than others not always based on price alone and that if air bags are important to you, check out how many sensors and air bags are included when you shop for a replacement car.