I feel you have two different issues. First, try to lubericate the tumbler where the key goes to see if that will loosten it. If it doesn't, you will need to remove the tumbler to determine if the tumbler is the problem or the actual switch is the problem. They make special lubericants for tumblers that you can get at any parts store.
Fot the air bag light is most likely a sensor issue. Once the ignition swith issue is resolved, you need to have the computer scanned to identify what is causng the light to come on. Based on a trouble code that will be present, you will know why the light is on.
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Saturday, January 15th, 2011 AT 4:14 PM