does tesla fix this under warranty?

the cars a 2017 so the 4 year warranty is expired but do they fix this under good will or no because I had a airbag light come on my car and they charged me $4000 for a new seat but this is a manufacturing error so does it make a difference

the cars a 2017 so the 4 year warranty is expired but do they fix this under good will or no because I had a airbag light come on my car and they charged me $4000 for a new seat but this is a manufacturing error so does it make a difference