I bought a TL with the passenger seat air bag and curtain deployed. I had the srs unit data reseted and also replaced both airbags but srs light still on. I noticed when I drive and someone is in the passenger seat and don't buckle, the seat belt reminder doesn't turn on, is it a sensor or a bad airbag?. Thanks in advance.

 

my tl was never in accident but had srs light, turned out it was the passanger seat buckle, dealer replaced for free (lifetime srs warranty)