Title fixed....I assume your tire pressures are good. The only thing I can think of is one of your sensors is NG. I know if I run my set w/o sensors but have one of the ones with a sensor in my trunk it will indicate failure after 20 minutes....you can either schedule an appointment and go to the dealer (should be under wtty if they replaced them) after a 30 minute cruise or cover the light with a piece of painters/electrical tape.
at least I fixed the title!
2012 V6 with suspension, shifting, stopping and sound mods.