Seat Belt & Pretensioner Replacement
Fired pretensioners, locked belts and buckle faults fixed by replacing the complete seat belt assembly with the correct part, then clearing the SRS faults.
Seat belt pretensioners are small charges in the belt retractor or buckle that pull the belt tight in a collision. They are part of the SRS, they fire together with the airbags, and once fired they cannot be reused. A fired pretensioner usually leaves the belt locked or loose and keeps the airbag light on.
Signs a pretensioner needs attention
- The seat belt is locked and will not pull out after an accident
- The belt will not retract, or the buckle does not latch
- The airbag light is on with a pretensioner or buckle fault code
- The belt was fired in a crash even though the airbags did not deploy
What we do
- Diagnose the pretensioner, buckle and belt circuits to confirm what has failed
- Replace the complete seat belt assembly, or the buckle where the pretensioner is built into it, with the correct part for the vehicle
- Clear the codes, and reset the airbag module if it has stored crash data
- Run a full SRS check so the airbag light goes out and stays out
Seat belt locked or not retracting after an accident?
A belt that has locked tight, will not pull out, or hangs loose after a collision almost always means the pretensioner has fired. It cannot be reset or re-armed. We replace the complete seat belt assembly with the correct part for the vehicle, and the airbag module usually needs its crash data cleared before the airbag light will go out.
Part of a full SRS repair
After a crash, pretensioners are usually just one part of the job alongside airbag replacement and a module reset. We can handle the whole SRS repair and provide documentation for insurers. See all our airbag and SRS services.
Seat Belt & Pretensioner Replacement: common questions
Can a fired seat belt pretensioner be reset?
No. A pretensioner uses a small charge that can only fire once. It has to be replaced, and the airbag module usually needs a reset to clear the crash data it stored.
Why is my seat belt locked after an accident?
In most cases the pretensioner fired and locked the belt. The belt or pretensioner assembly needs replacing for the belt to work and protect you again.
Will a fired pretensioner keep the airbag light on?
Yes. The airbag module sees the fired pretensioner as a fault and keeps the airbag light on until it is replaced and the codes and crash data are cleared.
Do the pretensioners fire if the airbags do not?
They can. In some collisions the pretensioners fire on their own to hold the occupants in place, without the airbags deploying.
Do you re-web or repair seat belts?
No. We replace the complete seat belt assembly, including the retractor and pretensioner, with the correct part for the vehicle. We do not re-web belts or repair retractors.
How much does pretensioner replacement cost?
It depends on the vehicle and whether the pretensioner is in the retractor or the buckle. We confirm the part and price before ordering it.
Our Service Guarantee
All work comes with our comprehensive warranty on parts and labor. We use quality components and provide factory-quality installations with professional documentation.