0.057102918624878
Used 2026 GMC Sierra HD for sale in Lawton
1 photos
Accident Free
No reported accidents
Vehicle Details
Unknown
Automatic
4WD
Diesel
6.6L Duramax Turbo-Diesel V8 eng
Unknown
Pickup
Owners
Make GMC
Model Sierra HD
Year 2026
Trim AT4X
Series 2500
Engine Cylinders 8
Body Class Pickup
What was with this car history VIN 1GT4UZEY2TF311956?
Popular features
SiriusXM Trial Subscription
May require additional optional equipment
Customize and manage entertainment and vehicle feature setting
Use control and manage select smartphone apps through the Infotainment system
Voice-activated technology for phone
SiriusXM 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 more
Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
System operation that is completely independent of the interior audiosystem
3.5mm and USB inputs for audio playbacks
A custom ABS baffle with full gasket sealing
A weatherproof amplifier hidden in the tailgate
Place 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 system
With streaming audio capability you can listen to files stored on your phone or Bluetooth® digital media device
Enjoy channels curated by DJs personalities and tastemakers
Access all your favorite entertainment to enjoy in-vehicle and on the SiriusXM app
Black textured step pads help provide secure footing
Integrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bed
Opens over the first row at the push of a button
Retracts into the roof
Offers tilt and slide features with express-open and -close
Provides added protection from sun and glare
Textured step pads help provide secure footing
Retracts when not in use
Deploy Running Board mode for car wash cleaning
LED perimeter lighting
When turned on will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshield
Helps make it easier to get into and out of the pickup bed
Located at each end of the rear bumper
Textured step pads to help provide secure footing
Provides a Black textured non-skid surface that helps protect the bed and minimizes cargo shifting
Covers the entire bed surface below side rails front box top rail gauge hole plugs and tie-downs
Chemically bonded the sprayed-on liner permanently bonds to the truck bed providing a watertight seal
Does not include spray-on liner on tailgate due to Black composite inner panel
Includes GMC logo on all trims except PRO
Provides light to find cargo in the bed
Black beltline moldings
Roof-mounted lamps near the front of the cab
Activated by switch located on center switch bank
Illuminates the cargo bed area
Helps keep spare tire secure
Body-color front bumper
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
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
18" LT305/70R18 MT spare tire
With integrated CornerSteps
18" LT305/70R18 MT tires
12-fixed rated at 500 lbs. per corner
LED taillamps with LED stop lights and animation
Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)
Help protect your truck's rear wheelhouse area from damage caused by dirt rocks mud road salt and the weather
Hitch area lighting
Body-color door handles
Tailgate and bed rail protection caps
Six function tailgate designed to help improve loading unloading and accessing the cargo box
Power lock and release
LED fog lamps
18" machined aluminum wheel with High Gloss Black accents
Cargo tie-downs (set of 4)
Onyx Black
Provides cabin comfort for rear occupants
With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day
If no vehicle is detected in your path works like regular cruise control
You can always override the feature and take control
Adaptive Cruise Control is compatible with Trailering. It is important to ensure your trailer has functioning brakes while trailering with heavier loads. Read your Owner's Manual to review Trailer Brake requirements and to learn more about the limitations of this system.
3-prong auxiliary household-style outlet
Located on the instrument panel
Makes it convenient for powering laptops phone chargers and other electronic devices
Soft supple leather trim adds comfort to your drive
Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
Under certain conditions once the vehicle is switched off designed to sound audible chimes and display a visual message within the driver display
Activates only once each time the vehicle is turned on and off and would require re-activation on a second trip
Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation
Individually controlled
Cooling feature includes both seatbacks and cushions
Utilizes a warming grid to remove fog or frost from the rear window
The window switch is conveniently located in the overhead console for easy 1-touch operation
The feature also allows brightness vertical tilt and zoom adjustments
Press memory button 1 or 2 to program and recall preferences
Quickly raises the window or lowers it with the touch of a button
If obstruction is detected the anti-pinch feature will auto-reverse
Multi-color 15" diagonal Head-Up Display
Can select key vehicle information to display including an off-road inclinometer
Adjustable vertical position and brightness of the display
Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter
Helps deter unauthorized entry helping to protect your vehicle
Seat trim Full Grain Leather
With the key fob in your possession lock and unlock your car's doors by pressing the button on a front exterior door handle increasing convenience
Lockout protection helps you avoid locking keys in the vehicle
Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob (when equipped)
Premium front floor liners with removable carpet insert
16-way power passenger seat with power lumbar and massage
Includes driver personalization warning messages and vehicle information
Replaces traditional analog gauges with fully reconfigurable high definition cluster layout
High definition display provides crisp premium appearance
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Allow the driver to easily operate the audio system and phone interface controls
16-way power driver seat with power lumbar and massage
If an obstruction is detected the anti-pinch feature will auto-reverse
Automatically maintains the selected temperatures for both the driver and front passenger
Allows individual climate settings for both driver and front passenger
Driver and front passenger can choose a temperature up to 30 degrees difference
Convenient charging location
Customers can charge their smartphones while they drive without connecting to any cables
Located in instrument cluster
Premium rear floor liners with removable carpet insert
3-channel programmable
Conveniently activates compatible devices such as garage door openers security systems and home automation devices from inside your vehicle
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
Located in the pickup bed
Allows the driver to adjust the steering wheel up or down and the steering column forward or back
Utilizes a warming grid to help remove fog or frost from the rear window
Located in infotainment display
Includes reconfigurable feature with cupholders cell phone storage power cord management and file holder capacity
At the touch of a button you can warm the cushions
Provide comfort in cold weather for passengers in the rear outboard seating positions
Passengers can manage heat settings with their own controls
Separate buttons on the climate control panel allow you to choose from 3 levels of warmth
At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control
Seats can be programmed to automatically warm up when it's cold out
Accessory
Lockable storage lid on Crew Cab models
Lockable storage compartment located within center console
Protects and hides your valuables
Obsidian Rush Full Grain Leather seat trim
When activated locks both rear wheels in unison
Increase traction in off-road situations
Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors
Thick construction helps to trap more dirt before it can enter the air intake
Uses antilock braking to help provide a smooth controlled descent
Helps driver maintain control of the vehicle without depressing the brake pedal
Activates by pushing a button below the instrument panel
Brake pad wear indicator
Skid Plates front aluminum
Hydroformed front section
High-strength steel
Push Button Start
Skid Plates Transfer case steel
Roll-formed high-strength steel
Includes bed assist step
This system automatically adjusts steering based on speed road conditions and other inputs to help reduce driver fatigue
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed
Multimatic DSSV dampers feature three separate spool valves to control damping and three connected chambers for fluid flow
Delivering premium control and comfort on road as well as robust performance during off-road adventures
Front suspension kit composed of: Control Arms Ball Joints Knuckles
Rear Suspension Lift composed of: spacer block and Half shafts w/ revised joint
Four wheel drive
4-button control 2WD Auto 4WD 4WD LO
2WD High for most on-road and highway situations
4WD High for snowy or wet roads when added traction is needed
4WD Low for deep sand mud or snow to provide maximum torque to all 4 wheels
When in AUTO mode remains in 2WD mode until the system detects wheel slippage
Automatically engages 4WD until traction is regained
Integrated with the antilock brake system (ABS)
Helps provide measured brake force signaling to electric-controlled trailer brake systems
Trailer gain and output are displayed in the Driver Information Center
70 Amp-hr
Maintenance-free with rundown protection and retained accessory power
When properly equipped; includes weight of vehicle passengers cargo and equipment
Emissions Federal requirements
Hitch platform to accept Gooseneck or 5th wheel hitch
Hitch platform with tray to accept ball and stamped box holes with caps installed
Box mounted 7-pin trailer harness
Hitch Guidance with Hitch View
In-vehicle Trailering App
Trailering hitch platform
Includes a 2.5" receiver hitch (with 2" insert) 4-pin and 7-pin connectors
7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle
IntelliBeam
Buckle to Drive
Gooseneck ball
Chain tiedown kit with case
AT4X Preferred Equipment Group includes standard equipment
Rear under seat storage
Console-Mounted Safe
Safety Services
Wi-Fi
In-Vehicle Apps
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
System alerts do not occur if you're using your turn signal or it detects you may be intentionally leaving your lane
Can also provide a tailgating alert if you're following a vehicle much too closely
Provides max trailer ratings for tongue weight conventional gooseneck hitch and 5th wheel hitch
Front row only
Can help you park or avoid vehicles and objects
You can also display a guideline to show where your vehicle is heading
Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
Requires Auxiliary Trailer Camera if one of the following camera views is desired: Transparent Trailer Rear Trailer View Picture-in-Picture or Inside Trailer View
Activates certain safety systems if equipped when a Teen Driver-designated key fob is used
Mutes the radio until the front-seat occupants fasten their seat belts
Remote commands
Built-in voice assistance
Real-time traffic and navigation
Automatic Crash Response to help if you're in need
Provides visual and audible alerts outside the vehicle when inflating an under inflated tire to the recommended tire pressure
Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
The feature also reminds the front passenger to buckle up if equipped
Allows driver to see inside the cargo bed on the infotainment display to help with 5th wheel or gooseneck hitching and to check cargo
Includes 2 Trailer Camera Provisions
Designed to help you maintain a safe following distance
In Reverse the view can be used to line up your hitch to your trailer
When driving the view can be used to check your trailer hitch
Shifting to Park automatically engages the Electric Parking Brake (if equipped)
Includes connector for accessory wiring harness
These can help you park and avoid collisions
Can help you line up the hitch to your trailer
When driving lets you check the trailer using Rear Vision Camera view
Rear Seat Belt Indicator
You can also switch to beeping crash avoidance alerts
Set of 4 sensors
Sensors will be shipped loose with the truck and will need to be installed on trailer by customer
Additional or replacement sensors are available as GM Accessory
System is capable of monitoring up to 6 wheels
Provides pedestrian alerts and can automatically provide hard emergency braking or enhance driver's hard braking
Limited nighttime and low visibility performance
Can automatically provide hard emergency braking or enhance your hard braking
Works at speeds between 5 and 50 mph
LPO Cargo Convenience Package
Gooseneck / 5th Wheel Prep Package -- Hitch platform to accept Gooseneck or 5th Wheel hitch.
LPO Hitch Package
Seller description
Elevate your off-road adventures with the exceptional 2026 GMC Sierra 2500HD AT4X. Engineered to conquer the toughest terrain, this powerful pickup combines exceptional capability with refined comfort and advanced technology.- 6.6L V8 Diesel Turbocharged (Duramax) engine delivering 470 hp and an impressive 975 lb-ft of torque- Off-Road Suspension and 2-Speed Active Transfer Case for unparalleled 4WD performance- Bose Premium Series 12-Speaker System and Premium GMC Infotainment System with wireless Apple CarPlay and Android Auto- Heated and ventilated front seats, heated rear outboard seats, and a heated steering wheel for year-round comfort- 16-way power driver and passenger seats with lumbar support for personalized ergonomics- Multicolor 15 Diagonal Head-Up Display, Bed View Camera, and Trailer Cam Provisions for enhanced visibility and control- Comprehensive suite of advanced safety features including Automatic Emergency Braking, Forward Collision Alert, and Lane Departure WarningElevate your driving experience with the 2026 GMC Sierra 2500HD AT4X. Visit Southwest Buick GMC Lawton today and discover the ultimate in off-road capability and premium refinement.Why Buy from Southwest Buick GMC Lawton?Southwest Buick GMC makes car buying straightforward with true transparent pricing, no hidden fees, and no market adjustments. We offer strong trade-in values and a wide selection of new Buick and GMC models, certified pre-owned options, and quality used vehicles. We'll buy your car even if you don't purchase from us. Proudly serving drivers in Lawton, Duncan, Chickasha, Elgin, Wichita Falls, Norman, OKC, and surrounding areas. Shop online or stop by today for a dealership experience built on honesty and efficiency. Price includes dealer added accessories.
SouthWest Buick GMC
1,203 miles away from you!
Location: 5002 NW CACHE RD, Lawton, OK 73505
Phone: (158) 036-0315
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Frequently Asked Questions About the 2026 GMC Sierra HD
The average price of a used 2026 GMC Sierra HD is $69,222 based on 23,000 listings currently available nationwide. Prices range from $10,000 to $111,945 depending on mileage, condition, and location. This particular Sierra HD in Lawton, OK is listed at $96,971.
Used 2026 GMC Sierra HD vehicles on our marketplace have an average of 14,593 miles. You can compare mileage across all available units on the GMC Sierra HD listings page.
Reliability varies by model year, maintenance history, and driving conditions. We recommend checking the vehicle history report and having an independent inspection before purchase.
The 2026 GMC Sierra HD runs on Diesel. Exact fuel economy figures vary by trim level and driving conditions. Check fueleconomy.gov for EPA estimates specific to this model year.
There are 769,898 used Pickup vehicles priced under $100,000 currently listed on our marketplace. Browse all options on the Used Pickup under $100,000 page. You can also narrow your search to Used GMC vehicles under $100,000 if you prefer to stay with the GMC brand.
