I have a 2018 Yukon XL SLT that just recently started having a mind of it's own. I get in my my Yukon and the seats, mirrors, and steering column have all adjusted on their own. It happens both as the vehicle is off and when I am also driving. I would be travelling on the highway and suddenly my power seat reclines, my side view mirrors adjust down and the steering wheel extends and I would need to adjust them right away. I've checked and reset my memory buttons on the door panel and have also checked several of the interior fuses within the dashboard. The memory buttons on the door seem to function, and I didn't see any blown fuses in the slots I checked. Is there something I'm missing? Please advise what I should be checking for. Thank you.