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

 

[KMeloney]

I think it's going to be some combination of the tilting settings in the Settings menu, the door switch mirror setting, and the Memory settings. You'll have to make sure they're set the way you want them in the menu, and then will have to also make sure you save it with the Memory 1 or 2 button. (And you'll have to make sure that you're not adjusting the mirror on the door switch while the position in the Settings menu is in the tilt position.) Lastly, you might have to make sure your fob is synced with the saved settings.

If getting that combo squared away still doesn't work, then... No idea.

 

[buukum]

I think it's going to be some combination of the tilting settings in the Settings menu, the door switch mirror setting, and the Memory settings. You'll have to make sure they're set the way you want them in the menu, and then will have to also make sure you save it with the Memory 1 or 2 button. (And you'll have to make sure that you're not adjusting the mirror on the door switch while the position in the Settings menu is in the tilt position.) Lastly, you might have to make sure your fob is synced with the saved settings.

If getting that combo squared away still doesn't work, then... No idea.

I will take a look at the settings. I run a dealership next door to a GMC dealer and our techs were left scratching their heads. I was hoping someone else had had the same problem.