This is a Technical Journal: Title II-TPMS calibration after SW upgrade In the new SW, released May 2019, the picture in the Centre Display for I-TPMS is showing a "spinning wheel", while calibration is ongoing. The calibration function itself is not changed compared to previous SW versions, it is only how it is presented in the center display that has been changed.A new calibration will start automatically as soon as the VDDM SW is upgraded.