I am pretty sure they are like the sensors on the pre 18 bikes. They can not be recalibrated. They are set at the factory with a pressure range and that is it. On the pre 18 bikes, you could change how the computer would read the sensors with a TPMS trigger tool. The reset should be in the shop manual. You trick the computer into seeing the front tire as the rear and the rear as the front. That way you could run a lower pressure in the rear. I did this on my 2012 when I went dark side. It worked if you wanted to stay in the pressure range for what the front tire was set for.