Ignition has an active recall, safercar.gov check the vin.
From what I've seen the steering is a known thing. I just purchased a GXP and the dealership is replacing End links, knuckles, entire steering rack half shafts etc.
How does the AC not work? Is it not blowing cold or is does it not turn on at all? Outdoor temp sensor is known to go bad an iirc below certain temps the AC won't work.
Where does the drivers floor get wet? Sound like either the weather stripping for the window or door isn't functioning any longer.
Beyond that welcome to the forums I'm sure someone with more expertise can help with more in depth fixes/ your other issues.
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