Most of the time you would to check the connection under either the passenger seat or the driver's seat and then make sure they are not loosen
Once upon a time I had my Airbnb light on it kept bothering me I thought I had to replace the whole airbag untill I put a diagnostic machine on it. It identified the right passenger seat I just had to pull the seat forward and then check the ***yellow cable beneath*** which is mostly the airbag cable once I adjusted it the light went off and that was it. Untill now it hasn't ever shown again