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DoctorD, Auto Service Technician
Category: Car
Satisfied Customers: 685
Experience:  ASE Master, AAA State 1st place, Rotary Club, 20 years Exp.
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how fast do you have to go for airbags to deploy

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Submitted: 9 years ago.
Category: Car
Expert:  DoctorD replied 9 years ago.
Generally speaking over 25MPH. The impact must be frontal and not side.
Thats 25mph as if you hit a wall, non moving obsticle. If you hit a car from behind and it moves forward then the impact must be much greater to fire the bags. Also hitting a car head on when both vehicles are moving at say 12MPH will set them off. So any combined frontal force over 25MPH will usually do it.