Central Information Display Intermittently Dimming or Flashing Off/On. Intermittently the Central Information Display (CID) dims and/or flashes off/on. There are two possible root causes for this issue. Cause 1: Voltage supply error from the Headunit-high (HU-H) to the Central Information Display (CID) when the display brightness is set to 60% or higher Cause 2: Calibration data for dimming the Central Information Display (CID) at high temperatures or bright sunlight is set incorrectly internally in the CID.