had a quick question i have a manual 2006 350z cruise control does not work at night is that normal and my air bag light came on out of no where how can ifix that thank you

 

You need to have the airbag code checked out to see what the problem is. I've never been behind the airbag in a Z, but in any other car it would sound like your clockspring is bad, thus you may have a "squib circuit" code.