Having to slam the brakes @55mph & hitting an truck, neither of my airbags went off. WHY????

Question

Going 55 on the highway a truck was making a u-turn in the middle of the highway and somehow did not see me....i slammed on the brakes when i realized he wasn't moving out of the way....and my airbags never went off...........WHY

Answer 1

There was apparently no impact , just deceleration.
there are sensors in the front end of the vehicle , at least 2 sensors have to close in order for the air bags to deploy.
No impact with the front end = no deployment.

Answer 2

Airbag sensors use an accelerometer to measure the decelleration force when your car hits another stationary object.

Airbags won't deploy if:
- the a-meter is defective,
- the fuse for the air bag system is burned out,
- if the decell force is below the trigger level of the a-meter,
- if the airbag is defective,
- if there is a broken or shorted wire in the airbag system.

Answer 3

lots of folk call this warped rotors, truthfully the two surfaces of the rotor are actually not to any extent further parallel with one yet another. a brake rotr needs to to be not in elementary terms parallel yet real to the wheel hub. in simple terms latheing the rotor would not continuously treatment the undertaking. after rotor is machined it would be checked for runout with a dial indicator. 0.002 inches is the magic sort. if the runout exceeds 0.002 then the pulsation will return with time.

Answer 4

depending on the initial point of impact, the sensors controlling the release of the airbags may not have been initialized to do so

Answer 5

Perhaps the impact was not enough to trigger them. Or the system is faulty. Or your car doesn't have air bags. Try putting your mother-in-law in the passenger seat and see what happens.

Answer 6

you may not have one in the car there was a report on that a while back

or the sensor in the front determined the severity was not great enough

Answer 7

Are you sure that they are there....? (it's a common theft item)