My '13 has just over 69,500 miles and not close to needing brake pads. For that matter I still have factory tires goodyears can't believe they aren't toast yet. Probably replace the tires before next winter but I have been impressed
I own a 2015 Yukon xl slt was first one off the truck at my dealer purchased March/April 2015 I have had none of those issues I'm around 9000 miles ( my wife doesn't go very far) but it has taken several interstate trips and no issues.