21 Yukon AT4 power mirror over correcting

[buukum]

My Driver mirror over corrects the position when the vehicle turns on. When I start the vehicle and adjust the mirror up to make the position correct. When the vehicle is turned off and than back on the mirror moves all the way up. After I readjust the mirror down and turn the vehicle off and on again it adjust all the way down. I have tried resetting the memory of the mirrors already and my local GMC dealer can't seem to explain it. Any help would be appreciated