AW: Various options are available to control the screen brightness. In the setup menu under Video / Picture on the second page, you will find the following settings: Brightness: Navigation / Sensor / Car

Choose „Navi“ to allow the GPS system to set brightness automatically over day / night signal of the GPS system.

Select „sensor“ to allow the screen brightness adjustment via light sensor embedded in the device. Note that the sensor is made insensitive for fast changes of brightness on purpose, where the delay will reduce unwanted screen brightness changes (for example during device operation or driving through avenues with trees etc.).

Select „Car“ to adjust the brightness according to signals present in the CAN net of the vehicle itself.

Note that if GPS signal controlled day / night switching is enabled, the sync process may take roughly 20 seconds, right after device start up.

How does the day / night switch work for the HMI: The factory default is set to day / night switching controlled by the GPS navigation system. However, there is the possibility to adjust this function manually. If the GPS signal-controlled auto switching is not desired, it can be deactivated in the Navigation Pane of settings (NAV> More> Settings> Map Setup> Color> Day / Night / Auto).