Air bag light and Radiator pitcock 01 Sonata

I have a Airbag light that has come on what does it mean? The pitcock on Radiator does in screw inward like the old ones or does it come out like a plug?

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The air bag lamp simply means that the air bag computer has detected a problem with or affecting the restraint system. To find out the nature of the problem, you'll need to take the car to a shop with diagnostic equipment capable of reading the diagnostic trouble codes from the air bag computer.
The petcock in the bottom of the radiator comes out like an oil pan drain plug. Be sure to not lose the rubber gasket when you remove the draincock.
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