Sounds like the resistor in your key has gone bad (you should hope). Otherwise, you will probably need a new ignition cylinder.
A remote possiblity is (if you have remote keyless entry or power door locks) your driver's side door is not completely unlocked. They can unlock enough to allow entry, but not enough to disable VATS. Though usually the car will then still start.
You should call your GM dealer, tell them your VIN, ask ask for the VATS code. Then get a new key (about $20). Then pray this fixes it.
Tuesday, August 28th, 2007 AT 7:12 AM