2015 Chevrolet Traverse - Window goes down on its own

Maintenance/Repairs
1

Rear passenger side pwr window goes down on it’s own and stays down. Will not go up from either switch. Dealership changed out drivers master switch. Windows worked fine for 3 weeks. Then today, on it’s own, rear passenger window went down and not responsive to either switchwes.

2

There may be an issue with the BCM.

Tester