The lighter and mirrors are on the same circuit so it's probably that fuse. Look in the fuse panel under the driver side dash, behind the little coin tray (you have to pull the tray out to get to the fuses). There is a diagram showing which fuse is which, it's also in your owners manual.
The airbag light is unrelated, for that you need to find out what airbag code is set. A dealer can read the code with a Tech 2 or you can follow the procedure in the service manual to put the system in diagnostic mode and read the code through flashes of the light. One clue is whether your horn and cruise are working, if they aren't or are intermittent as you turn the wheel then your problem is a bad clockspring.