On a small number of vehicles, a software problem could cause the instrument cluster to reset while driving. This can cause the lighting to turn off momentarily and some warnings may not be visible for a short time. Canadian regulations require the instrument cluster to be illuminated when the headlights are turned on and require warnings to work at all times.
This small error does not affect safety.
This is not a recall. Mercedes-Benz has made changes to correct this issue on all new vehicles.