This 2026 GMC Yukon XL Denali 4WD in Summit White over Jet Black is powered by the Duramax 3.0L Turbo-Diesel, rated 20 city and 24 highway MPG. The Denali Reserve Package adds a Dual-Pane Panoramic Power Sunroof, Power-Retractable Assist Steps and 22-inch Ultra-Bright Machined Wheels. Towing is covered by the Max Trailering Package with an Integrated Trailer Brake Controller, 2-Speed Autotrac Active Transfer Case and Hitch View. Super Cruise, Air Ride Adaptive Suspension, a 16.8-inch Premium GMC Infotainment System, Bose 10-Speaker Surround, a Rear Seat Media System and an AutoSense Hands-Free Power Liftgate round it out. In stock at Temecula Valley Buick GMC in Temecula, CA. Stock G261230.