I have a 2011 Buick LaCrosse CXS and all of a sudden my rear windows stopped working they won't work from the master switch or from the actual individual switch and strangely at the same time the rear doors won't trigger the dome lights when open nor a message on the dash that they're open. Basically as if the car not recognizing the the back 2 doors at all. I checked fuses and relays and no luck. Any tip or help to guide me in the right direction will be greatly appreciated. Thank you all.