They were subjected to a LOT of force in the crash, and did their job. The high level of force may result in them failing the NEXT time they are needed.
Is this a safety issue
They will need replaced. The seat belt retractors have cinching devices that go off during a crash.
The seat belts probably need replaced.
You have to replaced both seat belt tensioners, anytime on most newer car the seat belt tension locks up renders the seat belt useless a safety feature, during front end crash when seat belts are used the tighten up during a crash to keep you from moving forward, after the crash the tensioner are useless and the seat belts have to be replaced.
There is no way to unlock the seat belts after the airbags go off. You will need to get the seat belts and the tenisioner replaced.
A study by the University of North Dakota indicates that seat belts increase the chances of death during a crash to slightly over %87.
If it does, there is something wrong. Be aware that if a vehicle is involved in a collision serious enough that air bags were deployed, all manufacturers recommend that any seat belts which were in use at the time be replaced. Your insurer usually won't tell you this, but you can and should demand those belts be replaced as part of any repairs covered by insurance. Some seat belts have a "charge" in them that the airbag computer also sets off to tighten the belt a little bit during a crash. That type of belt would be unusable after a crash and would need replaced.
Yes, you can die in a car crash. Seat belts and air bags have greatly reduced the number of deaths from car crashes. Seat belts only work if they are fastened.
Seat belts are important as they keep you from flying out the windshield or colliding with your steering wheel when in a crash. As you can imagine, this can result in fatilities.
A seat belt has to be replaced after a crash because large forces may have damaged it.
Seat belts are never repaired, replaced only.
Seat belts & air bags.