Can the Airbag Light Reset Itself?

Quick Answer: Sometimes. If the light came on from a short glitch, like low battery voltage or a loose seat connector, it can go off by itself after a few drives. If the airbag computer stored a hard fault code or crash data, it won't. A crash-data light stays on until the module is reset, no matter how many times you restart the car.

Every time you turn the key, the airbag (SRS) system runs a self-test and the light should go out after a few seconds. When it stays on, the system found something it doesn't like. Whether it clears by itself depends on what kind of problem that is.

When the airbag light can turn off by itself

Some faults are soft faults. The system saw a problem, the problem went away, and after enough clean self-tests the light goes out. These are the common ones:

• Low or weak battery voltage, often after a jump start or a battery swap.
• A seat connector that got bumped.
• Something heavy on the passenger seat confusing the occupant sensor.
• The passenger airbag switch turned off, on cars that have one.

Even when the light goes out, the code can still be stored. If it keeps coming back, treat it as a real fault.

When it won't reset itself

A hard fault means a part or circuit is actually bad. A worn clock spring in the steering column, a failed sensor, a broken wire, or a seat belt pretensioner problem will keep the light on until the part is fixed and the code is cleared with a scan tool.

Crash data is the other big one. After a collision, the airbag module writes a crash record and locks itself. A battery disconnect or a basic code reader won't clear that. The module has to be reset or replaced, and until then the airbags and pretensioners may not work.

What you can check first

• Clear the passenger seat and check the passenger airbag switch if your car has one.
• Make sure the battery is healthy and the terminals are tight.
• Look under the front seats for a plug that's loose or pulled. Turn the ignition off before you touch it.
• Have the SRS codes read with a scan tool that can talk to the airbag system. A cheap engine-code reader usually can't.

Don't probe airbag or pretensioner wiring with a test light or meter. Those circuits can fire.

Can you drive with it on?

The car will drive, but on most cars a lit airbag light means the airbags and pretensioners may not deploy in a crash. We go into it more in can you drive with the airbag light on.

Bottom line

Give a light from a battery or seat-plug glitch a few drives. If it stays on, get the codes read. If the codes point to crash data, the fix is a module reset.

Light still on after a crash? Mail us the module

If a scan shows crash data, or the light came on after an accident, our airbag module reset is $54.99 plus $23 for shipping both ways. We email you a prepaid label, you send in your original module, and it goes back out 24 to 48 business hours after it gets here. It's your same module, so most cars need no programming. It carries a lifetime warranty.

If a module needs extra bench work, we contact you first. We don't install parts, so you or your shop puts it back in. Questions before you order? Contact us, Monday to Friday, 8AM to 9PM EST.

FAQ

How long does it take for the airbag light to reset itself?

For a soft fault, it usually goes off within a few drive cycles once the cause is gone. If it's still on after that, it likely won't clear without a scan tool or a repair.

Will disconnecting the battery reset the airbag light?

It can clear a soft fault on some cars. It won't clear crash data or a hard fault.

Does the light reset after a module reset?

Yes, once crash data is cleared and the module is back in, the light should go out, as long as the rest of the system (belts, clock spring, sensors) checks out.