Not a downpour but I went to a alpine resort. It was snowing and temperature was quite low. I do remember the adaptive headlights also stopped working for a few minutes and also 360 cameras took longer then usual to activate. But all good once the car it's off the mountain and getting warm.Did you drive through a downpour? My Pre-safe and other systems stopped working in really heavy rain. The rain stopped, I cleaned the cameras and everything was working fine again, or at least no pre-safe not working warning sign.