King Buick GMC · Florence, SC

2026 GMC Sierra 2500 HD AT4

0 miles · truck

1 / 48 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimAT4

VIN1GT4UPEYXTF384724

Stock number774

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorOnyx Black

Towing18500

Vehicle description

Standard EquipmentEntertainmentSiriusXM Trial SubscriptionWireless phone projection For Apple CarPlay1 and Android Auto2Wi-Fi Hotspot capable Terms and limitations apply. See onstar.com or dealer for details.May require additional optional equipment13.4 diagonal GMC Premium Infotainment System with Google built-in 13.4 diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM1 radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay capability for compatible phones3Wireless Android Auto capability for compatible phones4Customize and manage entertainment and vehicle feature settingUse, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone SiriusXM with 360L Trial Subscription With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes1SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and moreExperience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever beforeBluetooth® Pair your compatible mobile phone to your vehicle's infotainment system1Place and receive hands-free phone calls Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command systemWith streaming audio capability, you can listen to files stored on your phone or Bluetooth® digital media device3 Years SiriusXM Includes ad-free music, plus talk, sports, comedy, news, podcasts and more1Enjoy channels curated by DJs, personalities, and tastemakersAccess all your favorite entertainment to enjoy in-vehicle and on the SiriusXM appExteriorSide Bed Step Black textured step pads help provide secure footingIntegrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bedDeep-tinted glass Provides added protection from sun and glareGrille (Gloss Black header and grille insert bars with Black Chrome accents.)Body-color door handlesRainsense automatic wipers When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshieldCargo bed LED lighting Provides light to find cargo in the bedMay require additional optional equipmentSpray-on bedliner Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shiftingCovers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downsChemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight sealDoes not include spray-on liner on tailgate due to Black composite inner panelIncludes GMC logo on all trims except PRO20 high gloss Black aluminum wheels18 LT275/70R18 all-terrain, blackwall spare tire May require additional optional equipmentBlack beltline moldingsCab-mounted cargo area lamps Activated by switch located on center switch bankIlluminates the cargo bed areaSpare tire carrier lock Helps keep spare tire secure Animated LED projectors headlamps with LED turn signals and Daytime Running LampsOutside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass Chrome mirror capsAT4 and AT4X features high gloss Black mirror caps Power folding/extendingLower convex mirrorsHeated upper glassIntegrated turn signal indicatorsPuddle lampsPerimeter lightingAuxiliary lightingExtends 3.31-inchesHigh gloss Black mirror caps20 LT275/65R20 all-terrain, blackwall tiresBody-color front bumperIntelliBeam At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1Cargo tie-downs 12-fixed rated at 500 lbs. per cornerAnimated LED Signature Tail lamps with Stop, turn and Reverse lamps LED taillamps with LED stop lights and animation Rear wheelhouse liners Help protect your truck's rear wheelhouse area from damage caused by dirt, rocks, mud, road salt and the weatherMay require additional optional equipmentTailgate with EZ Lift assist, power lock & release Hitch area lightingMay require additional optional equipmentTailgate and bed rail protection capsGMC MultiPro Tailgate Six function tailgate designed to help improve loading, unloading and accessing the cargo boxHitch area lightingPower lock and releaseMay require additional optional equipmentCornerStep rear bumper Helps make it easier to get into and out of the pickup bedLocated at each end of the rear bumperTextured step pads to help provide secure footingLED fog lampsBody-color rear bumper With integrated CornerStepsSmo...

Features & options (250)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Keyless Ignition System
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Wireless Phone Charging
Blind Spot Monitor
Forward Collision Warning
Navigation System
Parking Assistance
Rear View Camera
Tow Hitch/Tow Package
Automatic Climate Control
Entertainment System
Turbo Charged Engine
Premium Sound System
SiriusXM Trial Subscription
Wireless phone projection
For Apple CarPlay and Android Auto
Wi-Fi Hotspot capable
May require additional optional equipment
13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth® streaming audio for music and select phones
Wireless Apple CarPlay capability for compatible phones
Wireless Android Auto capability for compatible phones
Customize and manage entertainment and vehicle feature setting
Voice-activated technology for phone
SiriusXM with 360L Trial Subscription
Place and receive hands-free phone calls
3 Years SiriusXM
Enjoy channels curated by DJs, personalities, and tastemakers
Side Bed Step
Black textured step pads help provide secure footing
Deep-tinted glass
Provides added protection from sun and glare
Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
Body-color door handles
Rainsense automatic wipers
Cargo bed LED lighting
Provides light to find cargo in the bed
Spray-on bedliner
Includes GMC logo on all trims except PRO
20" high gloss Black aluminum wheels
18" LT275/70R18 all-terrain, blackwall spare tire
Black beltline moldings
Cab-mounted cargo area lamps
Activated by switch located on center switch bank
Illuminates the cargo bed area
Spare tire carrier lock
Helps keep spare tire secure
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
Chrome mirror caps
AT4 and AT4X features high gloss Black mirror caps
Power folding/extending
Lower convex mirrors
Heated upper glass
Integrated turn signal indicators
Puddle lamps
Perimeter lighting
Auxiliary lighting
Extends 3.31-inches
High gloss Black mirror caps
20" LT275/65R20 all-terrain, blackwall tires
Body-color front bumper
IntelliBeam
Cargo tie-downs
12-fixed rated at 500 lbs. per corner
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
LED taillamps with LED stop lights and animation
Rear wheelhouse liners
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Tailgate and bed rail protection caps
GMC MultiPro Tailgate
Power lock and release
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
LED fog lamps
Body-color rear bumper
With integrated CornerSteps
Smoked Amber LED roof marker lamps
Roof-mounted lamps near the front of the cab
Winter Grille Cover
Off-Road High Clearance Steps
Textured step pads help provide secure footing
Power sunroof
Retracts into the roof
Offers tilt and slide features with express-open and -close
Onyx Black
120-volt box-mounted power outlet
3-prong auxiliary household-style outlet
Located in the pickup bed
Heated driver and front outboard passenger seats
Individually controlled
Carpeted floor covering
Color-keyed to match the interior
Rear air vents
Provides cabin comfort for rear occupants
10-way power driver seat with power lumbar
Includes 8-way power driver seat
Includes a 2-way power lumbar control
Premium front floor liners with removable carpet insert
You can always override the feature and take control
120-volt power outlet
Located on the instrument panel
Rear Seat Reminder
Ventilated driver and front passenger seats
Cooling feature includes both seatbacks and cushions
Driver memory
Power windows with driver and front passenger express-up/down
If obstruction is detected, the anti-pinch feature will auto-reverse
Keyless Open and Start
Lockout protection helps you avoid locking keys in the vehicle
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
USB ports
(2) Data/charge ports located inside center console
Power door locks
12.3" diagonal color Driver Information Center
High definition display provides crisp, premium appearance
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Front bucket seats
(2) Charge ports located on rear of console
Steering-wheel mounted controls
Power windows with driver express-up/down
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
Wireless Charging
Uses induction technology for select portable electronic devices
Convenient charging location
Compass
Located in instrument cluster
10-way power front passenger seat
Includes 8-way power front passenger seat
Premium rear floor liners with removable carpet insert
(2) First row, located on console
Inside rearview auto-dimming mirror
Seat trim, Perforated front Leather
Up-level rear seat with storage package
60/40 Full-length folding bench seat
Seatback storage on left and right side
Center fold out armrest with 2 cupholders
Underseat storage (full cab width)
Power windows with rear express-down
Wrapped steering wheel
Manual tilt and telescoping steering column
Rear window defogger
Outside temperature display
Located in infotainment display
Front center console
Heated rear outboard seats
Passengers can manage heat settings with their own controls
Head-Up Display
Multi-color 15" diagonal Head-Up Display
Adjustable vertical position and brightness of the display
Universal Home Remote
3-channel programmable
Jet Black with Kalahari accents, Perforated Front Leather seat trim
Rear Camera Mirror
The feature also allows brightness, vertical tilt and zoom adjustments
Power sliding rear window with rear defogger
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
4-wheel antilock disc brakes
Heavy-Duty Air Filter
Hill Descent Control
Uses antilock braking to help provide a smooth, controlled descent
Activates by pushing a button below the instrument panel
Off-Road suspension
Brake pad wear indicator
Fully boxed frame
Hydroformed front section
High-strength steel
Push Button Start
Automatic locking rear differential
Red vertical recovery hooks
Two front frame-mounted
Pickup bed
Roll-formed high-strength steel
Includes bed assist step
Digital Variable Steering Assist
Skid plates
Help protect the front underbody, oil pan and transfer case
In-Vehicle Trailering App
Checklist
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Four wheel drive
Autotrac 2-speed transfer case with push button controls
4-button control 2WD, Auto, 4WD, 4WD LO
2WD High for most on-road and highway situations
Automatically engages 4WD until traction is regained
Heavy-duty dual batteries with 1460 cold-cranking amps
70 Amp-hr
Maintenance-free with rundown protection and retained accessory power
11,350 lbs. GVWR
220-amp alternator
Emissions, Federal requirements
Gooseneck / 5th Wheel Prep Package
Hitch platform to accept Gooseneck or 5th wheel hitch
Box mounted 7-pin trailer harness
ProGrade Trailering System
Hitch Guidance with Hitch View
X31 Off-Road Package
Twin-tube Rancho shocks
Trailering Package
Trailer hitch
Trailering hitch platform
Hitch Guidance
Sierra HD Pro Safety
Forward Collision Alert
Following Distance Indicator
Front Pedestrian Braking
Buckle to Drive
Automatic Emergency Braking
AT4 Preferred Package
Rear sliding power window
LED roof marker lamps
AT4 Preferred Equipment Group includes standard equipment
AT4 Premium Plus Package
Technology Package
AT4 high clearance step
AT4 Preferred Package on AT4
Option/package discount
3 Years OnStar One
Connected Services by OnStar
Safety Services
Wi-Fi
In-Vehicle Apps
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
Rear Cross Traffic Alert
Tire Pressure Monitoring System with Tire Fill Alert
Trailering Information Label
6 airbags

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

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Florence, South Carolina

Asking price$79,883Dealer asking price

Market value$79,257Market value · based on 8 comparable cars

vs. market Fair price+0.8%Fair price · based on 8 comparable cars

Where this price sits

Among the highest-priced · 25% of 8 similar listings ask more than this car.

Market value $79,257

This car$79,883

$74,998lowest$80,178highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$626 above the market value of $79,257

Price range

$74,998$80,178

7th lowest price of 9 similar listings within 50 milesTick marks the market value · range of 8 similar listings

AutosXchange Insights

Compared with 8 new 2026 GMC Sierra 2500 AT4 listings within 50 mi.
Priced $626 above the market value of 8 comparable cars — compare options, condition and history.
7th lowest price of 9 similar listings within 50 miles.
Stock # 774 — mention it when you call or text.

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

Cars this price is compared to

Same 2026 Sierra 2500 AT4 · new · within 50 miles of Florence, South Carolina. All 8 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD AT4 for sale at King Buick GMC in Florence, SC

Good deal

48 photos