Absolutly no codes, no issues and no dummy lights. The flashpaq totally disables everything with the tpms. Only downfall is I'll have to check the tire pressure manually now everyonce and a while just to ensure all four tires are at the proper psi. Its no different now then any other vehicle back in the day that didnt have tpms sensors. Do you have a flashpaq? If so i would just disable it so you dont have that stupid light and just keep an eye on air pressure.