Brennan Buick GMC · Plattsburgh, NY

2026 GMC Yukon XL AT4 Ultimate

1 miles · suv

1 / 50 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelYukon XL

TrimXL AT4 Ultimate

VIN1GKS2WKL8TR448858

Stock number260339

Mileage1 miles

BodySport Utility Vehicle [SUV]

Engine6.2L V8 engine

Cylinders8

Displacement6.2L

Horsepower420

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

MPG14 city / 18 hwy

ExteriorOnyx Black

InteriorObsidian Rush with Red Accents, Full grain leather

Doors4

Towing7800

Vehicle description

At Brennan Buick GMC, we're here for you throughout the life of your vehicle. If you're in the market for a new or used truck, SUV, or car, visit our dealership to see the best that Brennan Buick GMC has to offer. - 18 Speakers with Bose 360L Surround Sound - 16.8 Premium GMC Infotainment System with Apple CarPlay/Android Auto - Super Cruise Hands-Free Driving Technology - Air Ride Adaptive Suspension with Magnetic Ride Control - Dual-Pane Panoramic Power Sunroof - Full Grain Leather Heated and Ventilated Seats with Massage Function - Advanced Security Package and Premium Capability Package with Active Response 4WD - Max Trailering Package with Integrated Trailer Brake Controller - 15 Head-Up Display - Power-Retractable Assist Steps - Rear Seat Media System with 8 Touchscreen - All-Weather Floor Liners for All Three Rows - Navigation System with GMC Connected Services - OnStar with 3 Years Service Included - 20 Machined and Painted Alloy Wheels This 2026 GMC Yukon XL AT4 Ultimate represents a commanding presence on the road. Built with an EcoTec3 6.2L V8 engine paired with a 10-speed automatic transmission, this full-size SUV delivers the capability you need for any journey. The 4WD system ensures confident handling across all road conditions, while the exceptional towing package makes this vehicle ready for serious work. The interior craftsmanship reflects the Ultimate designation throughout every detail. Full grain leather seating across all rows provides comfort for your entire family, with heated and ventilated front seats featuring massage functionality. The power-adjustable lumbar support in the driver and front passenger seats ensures proper support on long drives, while heated rear seats extend comfort to back-row passengers. Technology seamlessly integrates into your daily driving experience. The 16.8-inch premium infotainment system offers intuitive control, while Apple CarPlay and Android Auto keep you connected. The Rear Seat Media System with its own 8-inch touchscreen entertains passengers independently. Super Cruise hands-free driving technology takes the strain out of highway miles, and the comprehensive 15-inch head-up display keeps vital information in your line of sight. Entertainment reaches premium levels with an 18-speaker Bose system featuring 360L surround sound, complemented by SiriusXM satellite radio access. The panoramic sunroof floods the cabin with natural light, enhancing the spacious feel of this three-row design. Navigation and OnStar connected services, included for three years, provide security and navigation assistance whenever you need it. Capability matches the SUV's impressive stature. The Max Trailering Package equips this Yukon XL with an integrated trailer brake controller, smart trailer integration, and hitch view technology. The Air Ride Adaptive Suspension with electronic limited slip differential and active response 4WD adjusts to road conditions automatically, while hill descent control manages steep terrain with precision. Safety features work together to protect all occupants. The advanced security package combines multiple airbags, electronic stability control, and traction control. The blind zone steering assist helps monitor areas that mirrors cannot fully see, particularly useful when trailering. Driver attention assist technology maintains vigilance during long drives. The distinctive black exterior paired with 20-inch machined and painted alloy wheels establishes strong visual presence, while body-color door handles and bright sill plates add refined touches. The dual exhaust system and front fog lights complete the premium AT4 Ultimate appearance that commands respect wherever this SUV travels.

Features & options (154)

Basic
Corrosion
Maintenance
Roadside Assistance
Max seating capacity
Fuel System
Fuel tank capacity
Horsepower
Towing capacity
16.8" diagonal advanced color LCD display with Google built-in compatibility
5G Wi-Fi hotspot capable
Bose Performance Series CenterPoint Surround 18-speaker audio system
Rear Seat Media System
SiriusXM with 360L Trial Subscription
Wi-Fi Hotspot capable
Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
17" all-season blackwall spare tire
17" full-size spare steel wheel
20" all-terrain blackwall tires
20" machined and painted Talos Bronze Metallic wheels
Acoustic laminated glass
AutoSense Power Liftgate
Black roof-mounted side rails
Body-color door handles
Body-color heated, driver-side auto-dimming power outside mirrors
Deep-tinted glass
Front fascia with high-approach angle
Front license plate bracket
LED fog lamps
LED headlamps with animated lighting
LED tail lamps with animated lighting
Painted mirror caps
Panoramic power sunroof
Power-retractable assist steps with LED perimeter lighting
Rainsense automatic wipers
Rear intermittent wiper
Spare tire carrier
Upper active aero shutters
11" diagonal color Driver Information Center
120-volt power outlets
15" diagonal multicolor Head-Up Display
4-way power driver and front passenger lumbar control
8" diagonal rear touchscreen climate control
8-way power driver and front passenger seat adjusters
Adaptive Cruise Control
All-weather cargo mat
Assist handles
Bright sill plates
Cabin Air Filter
Carpeted floor covering
Content theft-deterrent system
Driver and front passenger 2-way power upper shoulder and 2-way power back bolster seats
Driver and front passenger visors with illuminated mirrors
Electrical theft-deterrent system
First and second row all-weather floor liners
Front bucket seats
Front console USB ports
Glass breakage sensor
Heated and ventilated driver and front passenger seats
Heated driver and front passenger seats
Heated second row outboard seats
Heated steering wheel
Inclination sensor
Interior Camera
Interior lighting
Interior movement sensor
Keyless Open
Leather-wrapped steering wheel
Memory settings
Overhead assist handles
Power 60/40 split-folding third row bench seat
Power door locks
Power driver and front passenger massage
Power tilt and telescoping steering column
Power windows with driver express-up/down
Power windows with front passenger express-up/down
Power windows with rear express-down
Power-release second row bucket seats
Power-sliding center console
Rear Camera Mirror
Rear air conditioning
Rear window defogger
Remote Start
Safety Alert Seat
Smart Trailer Integration Indicator
Sport Pedal Cover Kit
Steering column lock
Steering-wheel mounted controls
Super Cruise, advanced driver assistance technology
Third row USB ports
Third row all-weather floor liner
Tri-zone automatic climate control
Universal Home Remote
Warning tones
Wireless Phone Charging
10-speed automatic transmission
220-amp alternator
3.23 rear axle ratio
4-wheel antilock disc brakes
6.2L V8 engine
Adaptive Air Ride suspension
Automatic Stop/Start
Automatic Stop/Start disable button
Autotrac 2-speed transfer case
Dual-outlet exhaust
Electronic Limited-Slip Differential (eLSD)
Electronic Precision Shift
Engine air filtration monitor
Enhanced Cooling Radiator
External auxiliary transmission oil cooler
External engine oil cooler
Heavy-Duty Air Filter
Heavy-duty 730 cold-cranking amps battery
Integrated trailer brake controller
Magnetic Ride Control
Mechanical jack with tools
Performance Front Skid Plate
Red recovery hooks
Trailering equipment
IntelliBeam
3 Years OnStar One
7 airbags
Blind Zone Steering Assist with Trailering
Buckle to Drive
Driver Attention Assist
Enhanced Automatic Parking Assist
Forward Collision Alert
Front Pedestrian and Bicyclist Braking
HD Surround Vision
Hill Descent Control
Hill Start Assist
Hitch Guidance
Hitch View
LATCH System
OnStar Basics
OnStar services capable
Rear Cross Traffic Braking
Rear Pedestrian Alert
Rear Seat Reminder
Rear child security door locks
Reverse Automatic Braking
Side Bicyclist Alert
Teen Driver
Tire Pressure Monitoring System
Traffic Sign Recognition
Enhanced Automatic Emergency Braking
Intersection Automatic Emergency Braking
StabiliTrak, electronic stability control system with traction control
Trailer sway control
Floor Liner Package:
by BenInKentucky
on
7/14/2026 10:14:58 PM
Floor Liner Package

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · nationwide

Asking price$97,860Dealer asking price · 1 mi

Market value$99,015Market value · based on 171 comparable cars

vs. market Fair price-1.2%Fair price · based on 171 comparable cars

Where this price sits

In the typical middle range · 71% of 150 similar listings ask more than this car.

Market value $99,015

This car$97,860

$92,230lowest$108,954highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$1,155 below the market value of $99,015

Price range

$92,230$110,359

50th lowest price of 172 similar listings nationwideTick marks the market value · range of 171 similar listings

AutosXchange Insights

Compared with 171 new 2026 GMC Yukon XL AT4 Ultimate listings nationwide.
Priced $1,155 below the market value of 171 comparable cars.
50th lowest price of 172 similar listings nationwide.
About 1 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 260339 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 9, 2026. No price change at this dealership since Nov 9 ($97,860).

AutosXchange Intel Hub: Price changes for this model in New York · This model in the Intel Hub · Market movers in New York

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Yukon XL AT4 Ultimate · new · nationwide. Showing the 12 nearest of 171 comparable cars for sale, nearest first.

2026 GMC Yukon XL AT4 Ultimate for sale at Auto Mall in Brattleboro, VT

Fair price

54 photos