The air bag light comes on and stays on most of the time during driving. on 2004 Buick Regal

Most of the time the air bag light comes on, blinks and then stays on most of the time. Sometimes it goes off and stays off as it should but that is rare.

Asked by for the 2004 Buick Regal
You'll need to have the system checked and diagnosed to determine the cause, here are some shops near you:
Tell me something I don't know. I had the vehicle to the dealer. They wanted 700 plus dollars to replace the module under the seat! I asked them what would happen if I ignored the light. Nothing.