When I purchased my 98 3.1 144k Lumina the Airbag light was already on, I have no idea how long it was on before i got it, and I turned the engine over one day, the airbag light started flashing as usual, but this time didn't stay on.
Is this a feature? If the airbag light is on long enough without a resolution it turns itself off, or does this indicate the problem has fixed itself?