Hi all!   Intermittently we would get the warning on dash saying “SOS Error -Call workshop”. The screen will also not turn on during this time. This warning goes away when we switch off the car for a period of time after driving.    Besides a yellow warning triangle on the dash and screen not turning on there are no other symptoms. We have not driven the car much lately so I suspect it could be down to low battery, and will get a battery conditioner to see if it helps.