I know I don't have it on my truck but the car does. The feature would be much more useful if there was tilt switch on the dash or armrest rather than buried in a customization menu. Not every reverse manoeuvre needs to have the mirrors tilt. Auto tilt remains off on my car as I found it a nuisance.
On my 2009 Sierra I was able to have both or pick just one mirror that tilt.I agree. I have had that option on numerous other vehicles and never use it. I don't want to see the ground when backing up. I want to see what's behind me. Now maybe if I was backing into a city parking space I would use it.