The goal is not to "reset" anything, at least not yet. The Air Bag Computer has detected a defect in the system. When it does, it sets a very specific diagnostic fault code, turns the system off, and turns on the warning light to tell you. On some models disconnecting the negative battery cable for a minute will erase fault codes, but very often that doesn't work for Air Bag and Anti-Lock Brake Computers. Those may need a scanner to manually erase the codes.
Often these defects are intermittent and may not reoccur for a while. Knowing the code number gives us an idea of what might be happening.
The place to start is by having the fault code read and recorded. The people at many auto parts stores can do that for you for free, but quite often they can only read codes in the Engine Computer. It depends on how new the equipment is they're using.
Once you know the exact code number, you can pursue erasing it, then drive the car to see if it comes back. If it does not, a good suspect is something related to the air bag system was unplugged while the ignition switch was in "run".
Another good suspect is a broken clock spring. That's a wound-up ribbon cable in a plastic housing under the steering wheel. The fault code will refer to an open "squib", or open "initiator" circuit. When the ribbon cable breaks, at some point other functions with switches on the steering wheel will also stop working. Most commonly that's the horn and cruise control.
Here's links to some related articles you might find helpful:
Let me know what you come up with for the fault code and I'll look up the definition and diagnostic steps for you.
Tuesday, June 21st, 2022 AT 8:29 PM