Code P0431

Hey all, I'm getting code P0431 on the scanner. The definition of the code is that the reading is below threshold for bank 2.

Has anyone else experienced this problem? I'm sure whatever is the problem is under warranty, but I'm not about to pay Hyundai money to do a diagnosis for something is probably their fault. Any suggestions would be greatly appreciated! Thanks.

i think that its a code for the gas end, my santa fe does the same thing and i have owned my car for 8 months and the code goes off every month and i have to rent a car and put my santa fe in the shop to get fixed, i am going to get with the makers of the car and try to get my rental back. good luck on you car