Can airbags be reset after an accident?
Direct answer: The bag that fired is not reset. It is replaced. The airbag control module (SRS ECU) can often be professionally reset after a crash if it is physically sound and the hardware family is compatible. That job is crash-data removal on the original unit — not a dash-light trick, and not a substitute for new bags or pretensioners.
Key takeaways
- People say “reset the airbags”. They mean the ECU. The cushion is scrap once it has fired.
- Crash data often will not clear with a garage OBD scanner.
- Not every module can or should be reset — damaged or internally failed units are a different job.
- The ECU can leave the car. The rest of the SRS cannot be ignored.
- Compatible resets at Reset My Airbag start from £95; quote from the part number on the label.
This page answers can it be reset after a crash. Lamp still on after the bags are in: diagnosis after replacement. Reset versus a new ECU: repair vs replacement. MOT lamp rules: warning light and MOT.
Can deployed airbags be reset?
| Part | After a deployment |
|---|---|
| Airbag (the cushion / module in the wheel, dash, curtain) | Replace. It is not reset and reused. |
| Seat-belt pretensioner | Repair or replace if it fired. |
| Airbag control module (SRS ECU) | Often crash-data reset on the original unit if it is undamaged and compatible. |
| Sensors, clock spring, looms | Diagnose individually. A reset does not fix them. |
The ECU watches the system and, in a hard enough hit, stores crash or deployment information. That memory can keep the SRS lamp on after the visible parts are new.
What is airbag crash data — and can a scanner clear it?
Crash data is collision / deployment information written into the SRS control unit. Exact content depends on the car. The practical result is the same: codes stay, the lamp stays, and a standard OBD tool often cannot wipe it for good.
A proper SRS scanner is still essential — it tells you whether you are looking at crash data or a live hardware fault. Clearing a trouble code is not the same as clearing crash memory. If the lamp returns, you have not finished the repair.
Disconnecting the battery does not erase crash data.
Can an airbag module be reset after an accident?
Yes, many can — if the module is the right hardware, the stored event is the sort we can clear, and the board is not smashed, wet, or electronically dead.
We decide from:
- manufacturer, model, year
- exact part number on the label
- type of stored crash data
- physical and electronic condition of the unit
Not every ECU should be reset. Internally failed modules need repair or replacement — that decision sits on the repair vs replacement page.
Resetting the ECU will not turn the lamp off if bags, pretensioners, sensors or wiring are still wrong. Will a reset kill the light when crash data was the only remaining fault? Yes. That is the job.
How a UK postal reset works — the car stays with you
- Scan first. Repair fired bags and pretensioners. Photograph the ECU label.
- Disconnect the battery and remove the module using proper SRS procedure.
- Pack it so connectors cannot crush. Include your return address. Tracked post to East Grinstead, West Sussex.
- We identify the part, inspect it, and reset crash data if it is suitable.
- Tracked return. You refit. You scan the whole SRS again before MOT or customer handover.
That is why bodyshops and private owners across the UK use a mail-in service: the vehicle does not travel, the original ECU does.
Send registration, a photo of the SRS ECU sticker, which bags fired, and any SRS codes. Quotation by email or text — no booking until you accept.
Get a quotationHow much, how long, what else might need replacing
Price depends on part number and whether it is crash data only or an electronic repair. There is no honest one-size UK tariff. Compatible crash-data work starts from £95. Typical bench turnaround on many units is same day or 24–48 hours once the module is here, plus postage each way.
Other parts that often need attention after a smash: driver/passenger/side/curtain bags, pretensioners, belts, crash sensors, SRS plugs, clock spring, occupancy, dash crash structure — and only then the ECU. A module reset is not a shortcut around those.
An SRS malfunction lamp is a Major MOT defect if it shows a system fault. Detail on the MOT page. Do not assume bags will fire in the next hit while that lamp is on.
Frequently asked questions
Can airbags be reset after an accident?
The fired bag is replaced. The SRS ECU can often be crash-data reset and reused if it is undamaged and compatible.
Can an airbag module be reused after a crash?
Yes, in many cars, after a professional reset of the original unit. Depends on hardware, condition and stored data.
Does the module need replacing because the bags deployed?
Not automatically. Deployment is why crash data is there. Replacement is for a dead or unsupported ECU.
Can an OBD scanner clear crash data?
It may clear ordinary codes after a repair. Crash memory usually needs a specialist bench. If the lamp returns, you are not done.
Can I reset an airbag module myself?
Not safely, and not with consumer tools. Use a specialist with the right equipment.
Where can I get an airbag module reset in the UK?
Reset My Airbag, East Grinstead — postal for garages, bodyshops and owners nationwide. Quote from the quotation page with the part number.
SRS work is safety-critical. The car is not roadworthy because a lamp was cleared. Removal, reset and refit must be done properly.