Amazon prime and it’s on your porch by the weekend If I remember in the air you put the vehicle in Acc mode and press the lock and unlock button till horn beep and then you go left front tire press relearn tool button holding it till horn beep then release button clock wise then go to next tire holding the button with antenna of tool at the valve stem after horn beep next tire same procedure then ending on rear driver side press button and hold toll double beep BACK IN BUISNESS GOOD LUCK