Answer: Three setting options allow controlling the screen brightness. In the setup menu under Video / Picture on the second page, you will find the following settings: Brightness >>> Navigation / Car

Choose „Navi“ to allow the GPS system to set brightness automatically, selecting day or night HMI mode based on the GPS system.

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.

The factory default is set to GPS controlled day / night switching. Directly below the Brightness setting, you find the HMI selection option “Skin” with three different settings: day / night / auto. While day and night are manual settings, the auto function controls day / night skin automatically via GPS signal.