NHTSA Complaint #11540643 — 2016 NISSAN ALTIMA

I have a 2016 Nissan Altima S. The airbag light is on without accident. I went four times to the Nissan dealer to fix the problem. They just told me it was a past code (B0020-13), cleared it the first three times, and told me the problem was on the driver-side airbag. But after a few months, the airbag light was still on again. I was told the problem was on the passenger side the last time. Ask me to replace the airbag module and seat back; the parts cost $3110, and the labor is $2600. It is ridiculous... The airbag is the car safety system; the parts have never been used before, so it should be okay if there is no accident.