[GMCJOE]

Did you replace them,a shop, or dealership? Most likely, there is air in the system from pressing the calipers in. You will need to have the dealer bleed the system if that is the case. They have to hook a computer up to the stabilatrak/abs system to get all the air out. Though, it could be something else like a bad sensor. If it isn't obvious by looking around for a loose wire or connection around your brakes and such, you may have to take it in just to get it diagnosed by the dealer with the proper diagnostic equipment. Good luck.