Installed an aftermarket head unit cause my stock one crapped out on me.. when i installed it the airbag failure light came on and stays on now...Im not driving the car anymore til i can resolve the problem. Any ideas??

 

Had the same problem with mine, it was off when I bought it, but as soon as I bought it the light cam on, of course. We took it into volvo and they said it had shorted out and needed to be replaced, a few days and $850 later, the light is now out!
Hope that's not your problem, good luck!
[align=left] [/align]

 

lol I didnt get my airbag light prob fixed but the day after I bought my used 01 s40 the airbag light came on also lol sucks but thought it was funny ... and no way am I going to pay that now just to get it fixed