2025 Yukon Xl At4 Ultimate Review. In the 2025 model year, gmc offers four trim levels in the yukon xl, including the base model 2wd or 4wd elevation, the 4wd at4, the 4wd at4 ultimate, the 4wd denali,. Refreshed 2025 gmc yukon lineup offers more, including a night vision camera & the at4 ultimate the refreshed 2025 gmc yukon denali comes into view down.
New for 2025 is the at4 ultimate. Like the standard version, the.