Early design yrs of your fourth generation GMC Yukon might have brake failures due to a defective vacuum pump. “2012 XL Denali, 130K miles. I altered the oil when I bought it and ran Mobil one 5W-thirty and changed just about every 5K. At with regard to the 118K-ish mile https://californialemonlawcenter.com/lemon-law-advice-for-transmission-faults-with-the-2019-2023-gmc-yukon/