Use Undressed tire prep by P&S. Make sure you use a nice stiff bristle brush to work it in. Might take 2-3x by the look of your tire but stuff works great.
I had this same issue on my 17' 5.0. Same monitors would not ready up so I emailed my tuner and supposedly everything was turned on. Drove it and no matter what I did those monitors would not ready up or throw a CEL.
Mods are:
Kooks lth with high flow cats paired to a corsa extreme catback. 18'...