Hello, I have the problem in my XC70 MJ15 that I can no longer adjust my lumbar support from one day to the next. If I press the switch on the seat, then for this moment the light of the window lifter control unit as well as the foot room lighting goes out. The same applies to the passenger seat. I have no electric seats, but this lumbar support is apparently not a component of the control unit for the seat adjustment, but something of my own. H abe looking for the right option in Vida for a long time today, but just can’t find the position where I can check the function via Vida. Does anyone have a tip? LG, Steve