Pre-Owned 2026 GMC Sierra 2500HD AT4X

VIN: 1GT4UZEY1TF203571
Stock: P34655

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(37) Photos

(1) Videos

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Basic Info

Exterior:

Coastal Dune
Drivetrain:

4WD
Interior:

Obsidian Rush
Transmission:

10-Speed Automatic
Engine:

Turbocharged Diesel V8 6.6L/
Mileage:

752

Key Features

AWD
Adaptive Cruise Control
Android Auto
Apple CarPlay
Automatic Climate Control
Backup Camera
Blind Spot Monitor
Bluetooth
Fog Lights
Forward Collision Warning
Keyless Entry
Lane Departure Warning
Leather Seats
Navigation System
Parking Sensors / Assist
Power Seats
Push Start
Rain Sensing Wipers
Satellite Radio Ready
Side-Impact Air Bags
Sunroof / Moonroof
Tow Package
WiFi Hotspot
Wireless Phone Charging

Description

2026 GMC Sierra 2500HD AT4X in Coastal Dune Lifted on 40 Premium Off-Road Tires and 26 KG1 Wheels

This 2026 GMC Sierra 2500HD AT4X takes heavy-duty off-road capability to an entirely different level. Finished in stunning Coastal Dune and lifted on massive 40 premium off-road tires with 26 KG1 wheels, this truck delivers an incredible custom stance while retaining the luxury, technology, and capability of the AT4X.

With DSSV suspension, locking rear differential, massage seats, and advanced trailering technology, this Sierra is built to stand out anywhere it goes.

Custom Styling and AT4X Capability

Coastal Dune exterior
Professionally lifted with 40 premium off-road tires
26 KG1 wheels
AT4X off-road suspension with DSSV dampers
Driver-selectable locking rear differential
2-speed electronic Autotrac transfer case
Front aluminum and steel transfer case skid plates
Power-retractable assist steps with LED lighting
Spray-on bedliner with GMC logo
GMC MultiPro tailgate
Power sunroof
Animated LED projector headlamps and taillamps

Premium AT4X Interior

Full Grain Leather seating
16-way power front seats with massage
Heated and ventilated front seats
Heated rear outboard seats
Heated leather-wrapped steering wheel
Dual-zone automatic climate control
Driver memory settings
Power sliding rear window
Wireless charging

Technology and Entertainment

13.4 GMC Premium Infotainment touchscreen
Google built-in with navigation
Wireless Apple CarPlay® and Android Auto?
12.3 digital driver display
15 multicolor Head-Up Display
Bose Premium 12-speaker audio system
Kicker MultiPro Tailgate Audio System
Rear Camera Mirror
Adaptive cruise control
Remote start

Towing and Safety

ProGrade Trailering System
Integrated trailer brake controller
Hitch Guidance with Hitch View
In-vehicle trailering app
Trailer Side Blind Zone Alert
Trailer tire pressure monitoring
Bed View Camera and trailer camera provisions
HD Surround Vision
Front and rear park assist
Rear Cross Traffic Alert
Automatic Emergency Braking
Forward Collision Alert
Front Pedestrian Braking
Lane Departure Warning

The Bottom Line

This 2026 GMC Sierra 2500HD AT4X combines serious heavy-duty capability with high-end luxury and an unforgettable custom presence. With its Coastal Dune finish, 40 premium off-road tires, 26 KG1 wheels, DSSV suspension, massage seats, and advanced trailering technology, this AT4X is built to dominate both on and off the road.

BUY FROM AN AWARD WINNING DEALER
Rick Hendrick Mall of Georgia Mazda specializes in New Mazdas and Used Cars, and Mazda Certified Preowned vehicles. We have thousands of satisfied customers because we are among the most reliable of car dealers and they know we consistently exceed expectations. If you value low prices and a variety of high-quality vehicles, then Rick Hendrick Mall of Georgia Mazda is the only place you will need to visit.

Please confirm the accuracy of the included equipment by calling us prior to purchase.
This Dealership checks the vehicle recall status prior to making any pre-owned vehicle available for sale. Manufacturers and/or NHTSA may announce additional recalls at any time. To inquire about the recall status of this vehicle, visit: https://vinrcl.safercar.gov/vin/

Vehicle Details

Assist steps, power retractable, Black includes LED lighting (Not available with any other assist steps.)
Bed Step, Black integrated on forward portion of bed on driver and passenger side
Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (SQE), (TCE) or (TCH), not available with any other Ship Thru code.)
Bumper, front, body-color lower (Bumper color will be High Gloss Black.)
Bumper, rear body-color with bumper CornerSteps (Bumper color will be High Gloss Black.)
Cargo tie downs (12), fixed, rated at 500 lbs per corner
CornerStep, rear bumper (Not available with (ULV) AT4X AEV Edition.)
Door handles, body-color (With (ULV) AT4X AEV Edition door handles will be Gloss black.)
Fog lamps, LED
Glass, deep-tinted
Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)
Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
Lamps, Smoked Amber roof marker, (LED) (Not available with (YF5) California state emissions requirements.)
LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
Mirror caps, high gloss Black
Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31 [84.25mm]) lighting
Moldings, beltline, Black
Sunroof, power
Tailgate and bed rail protection caps, top
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Tire, spare, LT305/70R18-126/123R, 35 M/T
Tires, LT305/70R18-126/123R, 35 M/T
Wheel, Spare 18 (50.8 cm)
Wheelhouse liners, rear
Wheels, 18 (45.7 cm) machined aluminum wheel with High Gloss black accents
Wipers, front rain-sensing

Adaptive Cruise Control
Air conditioning, dual-zone automatic climate control
Air vents, rear
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
Audio System, 13.4 diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes color touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
Bluetooth for phone connectivity to vehicle infotainment system
Bose Premium Series with 12-speaker system with CenterPoint Richbass woofer and AudioPilot
Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Compass, located in instrument cluster
Defogger, rear-window electric
Door locks, power
Driver Information Center, enhanced, 12.3 diagonal reconfigurable multicolor digital display
Driver memory recalls driver presets for power driver seat and outside mirrors
Exterior Temperature Display, located in radio display
Floor covering, color-keyed carpeting
GMC Premium information Display- 13.4 diagonal Multicolor touch screen
Keyless Open and Start includes remote keyless entry
LPO, MultiPro Tailgate Audio System by Kicker
Multicolor 15 Diagonal Head-Up Display
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Premium Floor Liners with removable carpet insert, front
Premium Floor Liners with removable carpet insert, rear
Rear Camera Mirror inside rearview auto-dimming with full camera display
Rear Seat Reminder
Remote vehicle starter system
Seat adjuster, driver 16-way power including lumbar and massage
Seat adjuster, passenger 16-way power including lumbar and massage
Seat trim, Full Grain Leather
Seat, Up-level Rear with Storage Package 60/40 folding bench, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
Seating, heated driver and front outboard passenger
Seats, front bucket with center console
Seats, heated second row outboard seats
Seats, ventilated driver and front passenger
SiriusXM Trial Subscription
SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
Steering column, manual Tilt-Wheel and telescoping
Steering wheel audio controls
Steering wheel, heated
Steering wheel, leather-wrapped
Theft-deterrent system, unauthorized entry
Universal Home Remote
USB ports, (2) charge-only, rear
USB Ports, 2 (first row) located on console
USB Ports, 2, Charge/Data ports located inside center console
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
Window, power front, passenger express up/down
Window, power, rear sliding with rear defogger
Windows, power front, drivers express up/down
Windows, power rear, express down
Wireless Charging
Wireless phone projection for Apple CarPlay and Android Auto

Air filter, heavy-duty
Air filtration monitoring
Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
Brake lining wear indicator
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
Cooling, auxiliary external transmission oil cooler
Cooling, external engine oil cooler
Differential, driver-selectable full-locking rear, e-locking
Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm)
Four wheel drive
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
GVWR, 11,025 lbs. (5001 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18, 20 or 22 wheels.)
Hill Descent Control
In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
Pickup bed includes bed assist step
Push Button Start
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
Recovery hooks, Red (Deleted with (ULV) AT4X AEV Edition.)
Skid Plates, front aluminum
Skid Plates, Transfer case, steel
Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
Suspension, Off-Road Includes, 1.5 suspension lift: front suspension lift composed of: Control Arms, Ball Joints, Knuckles, DSSV Dampers, rear suspension lift composed of spacer block and DSSV Dampers and Half shafts w/ revised joints, 3-stage Leaf springs from 3500
Trailer brake controller, integrated
Transfer case, two-speed active, electronic Autotrac with push button control
Transmission, 10-Speed automatic

Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions
Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)
Daytime Running Lamps, LED signature lighting
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
Front and Rear Park Assist, ultrasonic
Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
LED Signature DRL's
OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (Requires (UE1) OnStar. OnStar Basics includes select remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
Rear Cross Traffic Alert
Rear Seat Belt Indicator
Safety Alert Seat
Seat Belt Adjustable Guide Loops, front row only
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
Trailer Camera Provisions and trailer viewing software
Trailer Side Blind Zone Alert
Trailer Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

AT4X PREFERRED EQUIPMENT GROUP includes standard equipment
OBSIDIAN RUSH FULL GRAIN LEATHER SEAT TRIM
ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
AUDIO SYSTEM 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE includes color touch-screen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)
SEATS FRONT BUCKET with center console (STD)
COASTAL DUNE
Lane Departure Warning
Front Collision Mitigation
Front Collision Warning
Automatic Highbeams
Tow Hitch
Running Boards/Side Steps
Keyless Start
Locking/Limited Slip Differential
Four Wheel Drive
Tow Hooks
Power Steering
ABS
4-Wheel Disc Brakes
Aluminum Wheels
Tires - Front All-Season
Tires - Rear All-Season
Conventional Spare Tire
Sun/Moonroof
Generic Sun/Moonroof
Running Boards/Side Steps
Power Retractable Running Boards
Bed Liner
Daytime Running Lights
Automatic Highbeams
Fog Lamps
Heated Mirrors
Power Mirror(s)
Integrated Turn Signal Mirrors
Power Folding Mirrors
Privacy Glass
Intermittent Wipers
Variable Speed Intermittent Wipers
Rain Sensing Wipers
Integrated Tailgate Step
AM/FM Stereo
Navigation System
MP3 Capability
Bluetooth Connection
Auxiliary Audio Input
Smart Device Integration
Requires Subscription
Satellite Radio
Requires Subscription
Premium Sound System
Premium Sound System
Bluetooth Connection
Bluetooth Connection
Smart Device Integration
WiFi Hotspot
Bucket Seats
Leather Seats
Rear Bench Seat
Power Driver Seat
Driver Adjustable Lumbar
Seat-Massage
Power Passenger Seat
Passenger Adjustable Lumbar
Seat-Massage
Heated Front Seat(s)
Heated Front Seat(s)
Cooled Front Seat(s)
Heated Rear Seat(s)
Mirror Memory
Seat Memory
Floor Mats
Floor Mats
Leather Steering Wheel
Heated Steering Wheel
Steering Wheel Audio Controls
Adjustable Steering Wheel
Heads-Up Display
Power Windows
Power Windows
Power Windows
Rear Defrost
Sliding Rear Window
Power Door Locks
Keyless Entry
Power Door Locks
Keyless Start
Remote Engine Start
Cruise Control
Adaptive Cruise Control
Universal Garage Door Opener
Security System
MP3 Capability
Auxiliary Audio Input
MP3 Capability
Auxiliary Audio Input
Climate Control
Multi-Zone A/C
A/C
Rear Defrost
Auto-Dimming Rearview Mirror
Back-Up Camera
Front Collision Mitigation
Front Collision Mitigation
Front Collision Warning
Traction Control
Stability Control
Daytime Running Lights
Daytime Running Lights
Driver Air Bag
Passenger Air Bag
Front Side Air Bag
Front Head Air Bag
Rear Head Air Bag
Passenger Air Bag Sensor
Telematics
Requires Subscription
Rear Parking Aid
Back-Up Camera
Aerial View Display System
Back-Up Camera
Front Collision Warning
Lane Departure Warning
Cross-Traffic Alert
Blind Spot Monitor
Driver Restriction Features
Tire Pressure Monitor
Navigation System
Telematics
Requires Subscription

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Pre-Owned 2026 GMC Sierra 2500HD AT4X

Basic Info

Key Features

History Report