There is a little plastic surround your lock goes up and down through and may be it's bound up and not letting the lock go up and down properly. Mine does that in the unlock position from time to time, try some kind of lube, very little, to see if that helps. May be an easy fix. If not, best way is to carefully remove the upholstery panel, try it and see what's not working. Might be something is disconnected or broken off.
I know you've probably already checked this on your a/c but there is a dial that opens and closes each of the vents; I ran a week before I figured out why my center vents weren't blowing cold air, LOL.
Don't know what to tell you on the traction control but there are some real knowledgeable guys on this forum that can help you, I'm sure. Good luck.