2027 GMC Yukon XL Specs, Redesign, Dimensions – The 2027 GMC Yukon XL isn’t just a mild refresh—it’s a bold, strategic evolution of the full-size SUV formula. The exterior gets a significant overhaul, making it sharper, more muscular, and noticeably more premium. A larger front grille design with laser-cut accents now dominates the fascia, flanked by slimmer adaptive LED headlights. The bumper is re-sculpted for improved airflow and better approach angles. GMC’s designers have extended the SUV’s visual width through new character lines and a reworked lighting signature that’s unmistakably upscale. 2027 GMC Yukon XL Specs
2027 GMC Yukon XL Redesign and Update Plan
Exterior & Interior
The 2027 Yukon XL stretches over 225 inches in length, and every inch has been optimized for function and visual drama. The LED taillights have been reshaped into vertical, C-clamp inspired housings with animated sequences. Side profile enhancements include recessed door handles and hidden B-pillars for a sleeker silhouette. Available 22-inch forged wheels come in polished aluminum or dark anthracite finishes depending on trim. The roofline remains long and flat, but a new integrated roof spoiler improves downforce and houses the rear-view camera.
Step inside and you’ll immediately notice the upgraded materials and expansive design. The cabin is wrapped in premium soft-touch surfaces, micro-stitched leather, and real wood or brushed aluminum accents depending on trim. The new 15.6-inch curved OLED touchscreen dominates the dashboard, floating seamlessly above a digital climate control array. A 12.3-inch fully digital instrument cluster with customizable themes comes standard across the range. Wireless Apple CarPlay, Android Auto, Google Built-In, and over-the-air updates are now integrated into all trims.
Seating flexibility is a major highlight. The 2027 Yukon XL offers best-in-class third-row legroom thanks to an extended wheelbase and a flat floor design. Power-sliding second-row captain’s chairs now allow easier access to the rear without folding seats entirely. The cargo area features a new multi-level storage bay, underfloor hidden compartments, and power liftgate with gesture control. With all rows folded, the Yukon XL offers over 144 cubic feet of cargo volume—more than any non-commercial SUV on the market.
New platform enhancements deliver more rigidity and less vibration. The updated T1XX architecture incorporates revised suspension geometry, resulting in better ride comfort and tighter handling for such a massive vehicle. The 2027 Yukon XL rides slightly lower for better aerodynamics while still maintaining class-leading ground clearance. Aluminum and composite panels reduce weight while preserving the rugged utility customers expect. GMC also added active grille shutters, a new air suspension calibration, and adaptive dampers to deliver a smoother, quieter ride under load or at highway speeds.
Trim levels see significant upgrades as well. The Denali Ultimate trim, previously limited to Sierra pickups, makes its Yukon XL debut. It brings unique badging, premium exterior chrome elements, and a redesigned panoramic roof as standard. On the AT4 trim, you’ll find revised off-road bumpers, red recovery hooks, hill descent assist, and new 20-inch all-terrain wheels. A new Yukon XL Elevation+ model slots between the SLT and Denali, offering darkened styling cues, standard 4WD, and black chrome details for buyers seeking an aggressive street presence.
2027 GMC Yukon XL Specs
Engine & Performance
Under the hood, the 2027 Yukon XL offers three compelling options. The base engine is a 5.3-liter EcoTec3 V8, now tuned to deliver 380 horsepower and 420 lb-ft of torque thanks to variable valve timing and dynamic fuel management. For those needing more grunt, the 6.2-liter V8 remains available, pushing out 440 horsepower and 460 lb-ft of torque. This engine benefits from updated cylinder deactivation software and thermal management to maintain performance without compromising efficiency.
The big news is the introduction of a new 3.0-liter inline-6 Duramax turbo-diesel with a 48V mild-hybrid system. This powertrain produces 340 horsepower and a massive 550 lb-ft of torque while dramatically improving towing stability and off-the-line acceleration. It’s the most fuel-efficient option in the Yukon XL lineup and ideal for long-haul family road trips or fleet use. All engines are mated to a recalibrated 10-speed automatic transmission that shifts smoother and smarter under load, whether you’re towing or cruising.
Towing remains a Yukon XL strong point. With the Max Trailering Package, the 2027 model can tow up to 9,300 pounds. Trailer sway control, enhanced trailer blind spot monitoring, and a new trailer check system with integrated tire pressure readings make it easier than ever to haul boats, RVs, or trailers with confidence. Magnetic Ride Control, Air Ride Adaptive Suspension, and selectable drive modes (including Snow, Tow, Sport, and Off-Road) give the driver full command of this full-size SUV in any condition. 2027 GMC Yukon XL Specs
2027 GMC Yukon XL Fuel Economy
The Yukon XL’s fuel economy numbers vary by powertrain. The 5.3L V8 delivers 17 mpg city and 22 mpg highway, while the 6.2L V8 posts 16/21 mpg. The standout performer is the new hybrid diesel setup, estimated at 24 mpg city and 29 mpg highway—best in class for a full-size SUV. All trims feature start-stop technology and an updated Eco mode for more efficient driving. A solar roof option on Denali and AT4 models helps power interior electronics, reducing alternator demand.
2027 GMC Yukon XL Safety Features
GMC has taken a major leap forward with safety in the 2027 Yukon XL. Standard across all trims is the GMC Pro Safety Plus package, which includes forward collision alert, pedestrian braking, lane keep assist, rear cross-traffic alert, and automatic emergency braking. The system uses an upgraded camera and radar suite that’s more accurate in low-visibility conditions, such as rain, fog, or snow.
The new optional Super Cruise 2.0 system transforms the Yukon XL into a semi-autonomous cruiser. Now functional on over 500,000 miles of compatible roads in North America, Super Cruise allows for hands-free lane changes, automatic speed adjustments for curves, and real-time driver monitoring. It also works with trailers, making it one of the only large SUVs that offers autonomous driving with a hitched load. In addition, the 2027 Yukon XL comes with intersection assist, automatic reverse braking, and enhanced parking guidance.
Structural safety has also been improved with additional high-strength steel in critical impact zones. Ten airbags, including a new front-center airbag and third-row side-curtain units, come standard. GM’s post-collision automatic emergency call system connects to OnStar even if the vehicle’s primary communication module is damaged. New in 2027 is a biometric driver monitor that checks heart rate and fatigue levels, issuing alerts or even safely stopping the vehicle if an emergency is detected.
2027 GMC Yukon XL Release Date & Price
The 2027 GMC Yukon XL pricing starts at $62,495 for the base SLE trim. SLT begins at $68,300, Elevation+ at $71,850, and AT4 at $74,990. The flagship Denali is priced at $82,150, while the Denali Ultimate—with all features, Super Cruise, massaging seats, 22-inch wheels, and Bose 18-speaker sound—starts at $91,995. Optional packages include a Rear Seat Theater System, Max Trailering Kit, Advanced Tech Suite, and Off-Road Pro Package.
Production of the 2027 Yukon XL begins in Q4 of 2026 at GM’s Arlington, Texas assembly plant, with dealer deliveries scheduled for February 2027. Pre-orders for Denali trims will begin in Fall 2026, with custom build configurators launching shortly after the official debut. GMC expects high demand, especially in markets like Texas, California, and the Midwest, where the Yukon XL continues to dominate the large SUV segment. 2027 GMC Yukon XL Specs