is your car still under waranty? seems like somthing has impacted with the paint to cause it to crack, or the paint was defective to begin with.
i would take it to the dealer and see what they say, (they probably wont cover it if it isnt under waranty, and if you cant prove that it was a defect). if they dont do anything, you best bet is to bring it to a body shop to get it resprayed if you want to go that route.