Vehicle Details
The 2026 GMC Yukon XL AT4 is built for drivers who want full-size capability, premium comfort, and confident performance in one refined package. Powered by a V8, 5.3L gasoline engine and equipped with 4WD, this GMC Yukon XL is ready for demanding road trips, everyday family duty, and challenging Louisiana weather alike. Its bold AT4 styling delivers a commanding presence, while the extended XL body offers exceptional passenger room and generous cargo versatility for life in Breaux Bridge, LA. Inside, the GMC Yukon XL AT4 blends rugged utility with advanced technology. Adaptive Cruise Control helps make highway travel more relaxed, while Lane Departure Warning adds an extra layer of confidence on longer drives. Stay seamlessly connected with Hands Free Bluetooth, Android Auto, and Apple CarPlay, allowing easy access to navigation, music, messaging, and compatible apps. The cabin is designed for comfort, convenience, and versatility, making it a smart choice for growing families, active lifestyles, and anyone who needs a premium SUV with serious capability. If you are searching for a spacious 4WD SUV with V8 strength, advanced safety features, and modern connectivity, this 2026 GMC Yukon XL AT4 in Breaux Bridge, LA deserves a closer look. Experience the durability, technology, and presence that make it a standout in its class.
Equipment
Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go! This vehicle has auto-adjust speed for safe following. This 2026 GMC Yukon XL 's Lane Departure Warning helps keep you in your lane. The leather seats in this GMC Yukon XL are a must for buyers looking for comfort, durability, and style. It features a hands-free Bluetooth phone system. This vehicle offers Android Auto for seamless smartphone integration. You'll never again be lost in a crowded city or a country region with the navigation system on this model. Never get into a cold vehicle again with the remote start feature on it. This model is pure luxury with a heated steering wheel. Protect the GMC Yukon XL from unwanted accidents with a cutting edge backup camera system. The vehicle stays safely in its lane with Lane Keep Assist. It gleams with an elegant silver clear coated finish.
New 2026 GMCYukon XL AT4
- Exterior Color
- Sterling
- Interior Color
- Forest Storm
- Body/Seating
- SUV/8 seats
- Seats
- 8 seats
- Fuel Economy
- 14/19 MPG City/Hwy
- Transmission
- 10-speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GKS2HKD9TR434049
- Stock Number
- 26GB5126
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Power moonroof
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
Included Packages & Accessories
- Federal Emissions Requirements
- Engine: 5.3L EcoTec3 V8
- Transmission: Electronic 10-Speed Automatic with Overdrive
- Floor Liner Package
- 1st and 2nd Rows All-Weather Floor Liners
- 3rd Row All-Weather Floor Liners
- All-Weather Cargo Mat
- AT4 Premium Package
- Technology Package
- Inside Rearview Auo-Dimming Rear Camera Mirror
- 15" Diagonal Multi-Color Head-Up Display
- Advanced Security Package
- Power Release 2nd Row Bucket Seats
- Floor Console
- Dual-Pane Panoramic Power Sunroof
- Power-Retractable Assist Steps
- Wheel Locks
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control: Adaptive Cruise Control
- Air conditioning
- Audio memory
- Auto-dimming rearview mirror
- Automatic temperature control
- Blind-Spot View Monitor: left and right
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar and GMC connected services capable
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: power
- Navigation system: GMC Connected Navigation
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear air conditioning
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Steering wheel memory
- Surround View Monitor
- Telescoping steering wheel
- Tilt steering wheel
- Adaptive suspension
- Alloy wheels
- Auto-leveling suspension
- Four wheel independent suspension
- Front anti-roll bar
- Front tires: 275/60SR20.0
- Power steering
- Rear anti-roll bar
- Rear tires: 275/60SR20.0
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 16.8"
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 10
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- 3rd row seats: split-bench
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 8
- Power 4-way driver lumbar support
- Power 4-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: tumble forward
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Compressor: Not Available
- Cylinder configuration: V-8
- Cylinder deactivation
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine liters: 5.3L
- Engine location: front
- Fuel economy city: 14mpg
- Fuel economy combined: 16mpg
- Fuel economy highway: 19mpg
- Fuel tank capacity: 28.0gal.
- Horsepower: 355hp @ 5,600RPM
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Limited slip differential: mechanical
- Manual-shift auto: Driver Shift Control
- Mode select transmission
- Number of valves: 16
- Recommended fuel: Regular gasoline
- Standard fuel economy fuel type: gasoline
- Torque: 383 lb.-ft. @ 4,100RPM
- Transmission: 10 speed automatic
- Variable valve control
- Approach angle: 32 deg
- Departure angle: 20 deg
- Ground clearance (min): 203mm (8.0")
- Ramp breakover angle: 16 deg
- Auto-dimming door mirrors
- Bumpers: body-color
- Heated door mirrors
- Hitch Class: IV
- Power door mirrors
- Power liftgate
- Rear cargo: power liftgate
- Skid plates
- Spoiler
- Tailpipe finisher: polished
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- 3rd row headroom: 970mm (38.2")
- 3rd row hiproom: 1,255mm (49.4")
- 3rd row legroom: 932mm (36.7")
- 3rd row shoulder room: 1,595mm (62.8")
- Compression ratio: 11.00 to 1
- Curb weight: 2,706kg (5,966lbs)
- Engine bore x stroke: 96.0mm x 92.0mm (3.78" x 3.62")
- Engine displacement: 5.3 L
- Engine torque: 383 lb.-ft. @ 4,100RPM
- Exterior body width: 2,057mm (81.0")
- Exterior height: 1,943mm (76.5")
- Exterior length: 5,720mm (225.2")
- Front headroom: 1,026mm (40.4")
- Front hiproom: 1,562mm (61.5")
- Front legroom: 1,130mm (44.5")
- Front shoulder room: 1,664mm (65.5")
- GVWR: 3,493kg (7,700lbs)
- Greenhouse Gas Score (GG): 3
- Interior maximum rear cargo volume: 4,092 L (144 cu.ft.)
- Interior rear cargo volume: 1,175 L (41 cu.ft.)
- Payload: 617kg (1,360lbs)
- Rear headroom: 953mm (37.5")
- Rear hiproom: 1,557mm (61.3")
- Rear legroom: 1,067mm (42.0")
- Rear shoulder room: 1,643mm (64.7")
- Towing capacity: 3,402kg (7,500lbs)
- Turning radius: 6.6m (21.7')
- Wheelbase: 3,404mm (134.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Blind Zone Steering Assist active
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Outside temperature display
- Parking sensors: Enhanced Automatic Parking Assist front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Rear window wiper
- Speed limit display
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Enhanced Automatic Emergency Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross Traffic Braking mitigation
- Security system
- Tracker system
- Traction control
Dealer Notes
KBB.com Consumer Reviews
- 5.0
Excellent Machine, Safety Features are Excessive
By BenInKentucky on 7/14/2026 10:14:58 PM
First, get the diesel. This is our 3rd diesel Yukon and they are amazing. Great mileage, great resale value, plenty of horse power, and the range for one tank of fuel can be very convenient on long road trips. The extra room in the XL model is also convenient for luggage if you have a large family and enjoy the ability to see out the back windows. The 10 speed transmission is smooth and it will glide down the interstate at any speed with ease at very low engine RPM. The only real downside to this vehicle are the overbearing safety features. If I look over at the navigation screen it vibrates the seat and tells me I am distracted. The auto-cruise (self-driving) feature will randomly hit the breaks in the middle of the highway. The backup camera will slam on the breaks if it sees any movement behind the vehicle even if it is way out of range. The back hatch opens automatically if you walk past it with the key in your pocket. If I lean too far on to the center console it will vibrate the seat and tell me I am distracted. We use this vehicle on the farm and there is no way to disable the seat belt alarm. We spent about an hour going through all of the settings and were able to disable most of the annoying features. I find putting a business card in front of the camera that looks at my face cures many of these frustrations and I may opt for a more permanent piece of black electrical tape that will blend in seamlessly. The auto stop feature is also frustrating but like the EPA gas cans I believe most of America is dealing with this frustration and it is not limited to this vehicle. Overall, we love the vehicle and will buy another one. - 5.0
No Problems Yet
By CoachTroy72 on 6/17/2026 11:26:04 PM
I got my 26 Yukon Denali SUV with 3 miles on it. Got to 308 and had engine knock. Took it to Classic GMC, they had it a week. Flushed out the engine debris, no knocking. Also they changed the oil. Not from 0-20w to 40w, but just changed it with the same OEM AC Delco standard Dexos, no more knocking. Now at 1238 miles havent had any issues. Actually getting 22.3 MPG! For a truck that is 17 city 20 Hwy.. - 5.0
Love everything about my Elevation, except…
By Carol Ann on 6/3/2026 5:57:12 PM
This truck has excellent get up and go power, great traction control and steering, with an impressive turning radius, love the large dash display screen, sleek design inside and out, and the suspension makes for comfortable long highway and city driving. Surrounded in cool luxury, state of the art sound system while feeling like a VIP in my classy black FBI looking whip.