The 2026 GMC Yukon XL Denali 4WD pairs the Duramax 3.0L Turbo-Diesel with an electric 10-speed automatic and Air Ride Adaptive Suspension. The Denali Reserve Package adds a dual-pane panoramic power sunroof, power-retractable assist steps and 22-inch Ultra-Bright Machined wheels. Super Cruise and the Max Trailering Package, with its integrated trailer brake controller and hill descent control, add to the capability. Inside are heated front bucket seats, a 16.8-inch GMC infotainment system with integrated navigation, Bose 10-speaker surround sound, a rear seat media system and an AutoSense Hands-Free Power Liftgate. Finished in Summit White over Jet Black. In stock at Temecula Valley Buick GMC in Temecula, CA. Stock G261229.