2020 GMC Sierra AT4

$38,989
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Competitive price
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GMC Sierra Details

transmission
Automatic
engine
V8, 5.3L
color
Summit White
drive
4WD
fuel
Gasoline
mileage
73,340 Miles
interior color
Jet Black w/Kalahari Accents
stock number
C26051A
VIN
3GTP9EED9LG219729
series
1500
seats
Leather
trim
AT4

Estimated Payment

Down Payment: $0
Months: 0
$0 / month

About This 2020 GMC Sierra

Summary
2020 GMC Sierra 1500 AT4 — available now at McClinton Auto Group in Parkersburg, WV. This rugged, off-road-ready truck pairs premium comfort with serious capability. Powered by a 5.3L V8 gasoline engine and equipped with a robust 4WD system, the Sierra AT4 delivers exceptional performance for towing, trailering, and off-road adventures throughout the Mid-Ohio Valley. A CARFAX 1-Owner, Clean Report confirms this vehicle’s well-maintained history and reliability.

With its distinctive AT4 design, skid plates, and trail-ready suspension, this Sierra stands out on and off the road. Inside, enjoy leather seating, heated and ventilated front seats, and advanced connectivity through Android Auto, Apple CarPlay, and hands-free Bluetooth. Whether for work or recreation, this 2020 GMC Sierra 1500 AT4 combines bold design, intelligent technology, and dependable 4WD performance — offered at the best price in Parkersburg, WV.

Vehicle Details
Turn heads in Parkersburg, WV with this rugged 2020 GMC Sierra 1500 AT4 — the best-priced, adventure-ready pickup on the market. Powered by a robust 5.3L V8 gasoline engine and equipped with 4WD, this GMC Sierra AT4 delivers confident towing, smooth highway passing, and off-road capability. The AT4 package brings a bold, purposeful stance with premium comfort and utility for work or weekend play.

Step inside to find tech-forward convenience: Apple CarPlay and Android Auto keep your smartphone integrated for navigation and media, while Hands-Free Bluetooth offers safe, effortless calls on the go. Automatic Climate Control maintains a comfortable cabin in any weather, and a CARFAX Clean Report provides added peace of mind about the vehicle's history.

This GMC Sierra 1500 blends capability with refinement — spacious seating, thoughtful storage, and durable materials built to handle heavy-duty tasks while keeping passengers comfortable. The powerful V8 and advanced 4WD system make it ideal for towing, hauling, and exploring West Virginia's scenic backroads.

Located in Parkersburg, WV and priced to move, this 2020 GMC Sierra 1500 AT4 represents exceptional value for buyers seeking performance, technology, and reliability. Don't miss out on the best price for a versatile, tough, and tech-equipped pickup — schedule a test drive today and experience the GMC Sierra AT4 difference for yourself.

Equipment
Heated and Ventilated Leather Front Seats

Heated Steering Wheel

Automatic Climate Control

Android Auto & Apple CarPlay Integration

Hands-Free Bluetooth Connectivity

Steering Wheel Audio Controls

Back-Up Camera

Remote Start System

Hill Descent Control

Skid Plates

Off-Road Suspension

ProGrade Trailering System

Spray-On Bedliner with AT4 Logo

Packages
Preferred Equipment Group 4SB: Hitch Guidance, Skid Plates, 5.3L EcoTec3 V8, HD Rear Vision Camera, Trailering Package, Off-Road Suspension, ProGrade Trailering System, Heated 2nd Row Outboard Seats, Ventilated Front Seats, All-Weather Floor Liners (AT4 Logo), Spray-On Bedliner, Red Recovery Hooks, Hill Descent Control, 18” Machined Aluminum Wheels.

Black Off-Road Accessory Assist Steps.

Note: Equipment listed is based on original vehicle build and subject to change. Please confirm details by calling the dealer prior to purchase.

Additional Information
The 2020 GMC Sierra 1500 AT4 is engineered for drivers who demand strength, refinement, and off-road capability in one package. Its 4WD drivetrain and off-road suspension make it ideal for West Virginia backroads, job sites, or weekend excursions. With premium interior materials and modern connectivity, this Sierra offers the perfect balance of rugged performance and upscale comfort.

Proudly serving Parkersburg, Vienna WV, Marietta OH, and Belpre WV, McClinton Auto Group has been your trusted automotive partner since 1915.

Available now at McClinton Auto Group 1325 Seventh St, Parkersburg, WV 26101Call us today at (304) 422-6501

J.D. Power Edge Certified Pre-Owned Vehicle Standards Every J.D. Power Edge Certified Pre-Owned Vehicle must pass a rigorous, 165-point quality assurance inspection. Vehicle History Report Vehicle history reports identify any title-related problems such as: salvage, rebuilt, flood damage, damage disclosure, manufacturer buyback, roll overs or unreliable odometer. Limited Warranty 90-day/3,000 Mile Coverage Limited Warranty covers major vehicle components and includes: Towing Coverage Travel Breakdown Coverage Rental Car Coverage J.D. Power Edge Program folio to store Limited Warranty information and other documents

Features & Options

  • Preferred Equipment Group 4SB: Hitch Guidance; 2 USB Ports (1st Row); Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Color Surround Grille; High-Capacity Air Filter; Skid Plates; Compass; 4.2" Diagonal Color Display Driver Info Center; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; All-Weather Floor Liners with AT4 Logo; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Ventilated Driver and Front Passenger Seats; 18" X 8.5" Machined Aluminum Wheels; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 265/65R18SL AT BW Tires; Remote Vehicle Starter System; Hill Descent Control; 5.3L EcoTec3 V8 Engine; Floor-Mounted Center Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; Premium GMC Infotainment System Radio with Multi-Touch; HD Radio; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; Rear Dual USB Charging-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Heavy-Duty Rear Locking Differential; Power Door Locks
  • Black Off-Road Accessory Assist Step
  • Apple CarPlay/Android Auto smart device mirroring
  • 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
  • Hitch View rear mounted camera
  • Brake assist system
  • Cruise control with steering wheel mounted controls
  • Ventilated driver and front passenger seats
  • Keyfob remote start
  • Heated steering wheel
  • Heated driver and front passenger seats
  • Heated rear seats
  • Leather front seat upholstery
  • Primary monitor touchscreen
  • Driver seat power reclining
  • lumbar support
  • cushion tilt
  • fore/aft control and height adjustable control
  • AutoTrac part and full-time 4WD
  • EcoTec3 5.3L V-8 gasoline direct injection
  • variable valve control
  • regular unleaded
  • engine with cylinder deactivation and 355HP
  • Teen Driver restricted driving mode/alerts
  • Smart key with hands-free access and push button start
  • Bluetooth wireless audio streaming
  • Hitch Guidance vehicle to trailer hitching assist
  • GMC ProGrade Trailering System trailer light test
  • GMC ProGrade Trailering System trailer light malfunction warning
  • GMC ProGrade Trailering System trailer theft alarm
  • Dual-zone front climate control
  • Immobilizer
  • Bluetooth handsfree wireless device connectivity
  • Trailer brake controller
  • Trailer Sway Control (TSC) trailer sway control
  • Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
  • Premium GMC Infotainment System external memory control
  • Pandora internet radio capability
  • 6 USB ports
  • StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
  • Hill Descent Control (HDC)
  • Hill Start Assist (HSA)
  • Automatic climate control
  • Rear seat check warning
  • 1 exterior 120V AC power outlet
  • LED daytime running lights
  • LED brake lights
  • LED front fog lights
  • Leather and metal-look steering wheel
  • EZ Lift
  • EZ Lower
  • Integrated tailgate step
  • Trailer hitch light
  • Manual rear child safety door locks
  • Heated driver and passenger side door mirrors
  • Power driver and passenger door mirrors with tilt down in reverse
  • Auto-dimming driver side mirror
  • Power folding door mirrors
  • -

2020 GMC Sierra 2500HD AT4 Review

Driven by cheaper fuel prices and a resurgent appetite for all things large, the truck segment is in the midst of a renaissance like never before: they’re bigger, smarter, more capable and increasingly luxurious with jaw dropping price tags. And this one is a real monster – the all-new GMC Sierra Heavy Duty.
I’ve driven some big trucks this year including Ram’s new 3500 dually Mega Cab but this one feels even more gargantuan. It’s the Sierra 2500 Heavy Duty; taller and longer than its predecessor and now available in AT4 livery for a little more off-road worthiness. You’ll need the various sidesteps, bumper steps and grab handles for this one because it’s just that large. But that’s what you would expect from a next generation heavy duty; every adjective in the dictionary meaning MORE.
GMC says that trailering is the most important consideration for Sierra Heavy Duty customers – this one can tow 18,500 pound, by the way, you can check the specifics for your configuration right on the door jamb – so they’ve poured a boatload of resources into cameras, apps and a multitude of other features to make pulling stuff as safe and as stress-free as possible.
With 15 camera views including surround vision and a bed view, a rearview camera mirror, and an optional transparent trailer view camera that my tester doesn’t have and requires additional installation, every inch of this truck is covered by more eyeballs. Furthermore, there are larger, power extendable trailering mirrors with power retract, the all-new Park Grade Hold Assist that keeps the wheels braked for an extended period of time, a diesel exhaust brake and an in-vehicle trailering app that can retain various trailer profiles and perform safety tests with that same information available through the myGMC mobile app. And depending upon your trailer, the app can turn on the trailer’s air conditioning or water heater, check water and holding tank levels, or monitor fuel levels for the generator — all while you’re still driving. It does not have, however, Ford’s super easy Pro Trailer Backup Assist that does the steering for you but otherwise the breadth of trailering features here is off the charts impressive. The bed lift-in height is also lower than before for easier 5th wheel and gooseneck hitching. The bigger frame allows for up to 35,500 pounds when configured as a 3500HD, regular cab, 2WD dually diesel. Speaking of which…
So which do you choose: The new 6.6-liter gas V8 or, or for a mere $10,000 more, this carryover 6.6L Duramax diesel? Rated at 445 horsepower and 910 pound-feet of torque it feels more alive than the new 1000 pound-foot Cummins I recently tested in the Ram. And GMC says it now performs more efficiently thanks to this enormous grille and the hood scoop, allowing for increased cooling. I’ve averaged 15mpg.
(Driving stand-up)
The AT4 part of this equation starts with off-road tuned Rancho shocks, skid plates and a locking rear differential. Riding on optional 20” wheels fitted with new Goodyear Trailrunner tires, the AT4 also packs a specific Off-Road driving mode, Hill Descent Control and Hill Start Assist, a heads-up display, off-road gauges, and low speed surround vision camera. It also possesses a bolder appearance and red recovery hooks. Furthermore the cabin receives AT4 specific upgrades such as these color accents and all-weather floor liners. And despite its size it’s an easy going drive with surprisingly precise recirculating ball steering and a new 10-speed transmission that is smooth, reactive and beautifully matched with the diesel. The torsion bar front suspension is an interesting choice but the ride is super smooth UNTIL something upsets the body and then it’s jounce for days.
(Interior stand-up)
Space is not an issue…the rear seats are bigger than some apartments. There are also clever cubbies and the seats fold up when not needed. And my heavily optioned tester is loaded with luxury goodies and safety tech that gives it a high-end resume yet it all just looks a bit dated and uninspired when the competition is going all-in on such matters. I love the convenient location of the wireless charge pad, huge center console, and new higher seating position that places you nearly eye-to-eye with the big rig drivers. But this touchscreen is too small now and there’s no adaptive cruise control on 2500 models even though it looks like it exists. The safety features are otherwise high with auto high beams, the vibrating safety alert seat, lane departure warning and automatic emergency braking.
The next frontier in the pickup truck wars seems to be focused on the tailgate where cleverness has finally arrived. This one has 6 configurations to fit a variety of needs – it’s so smart you wonder why this hasn’t happened before.
Remember those old Chevy TV spots with Howie Long taking shots at Ford for their “old guy” tailgate step? Well, it looks like GM has come to the other side and then some. Called the MultiPro tailgate and introduced on the Sierra 1500, it now moves up to the big boys with various ways to make your job easier.
The price of this truck starts at $57,700 and with options checks in at a healthy $77,155 so Professional Grade doesn’t come cheaply. But this is no doubt a very impressive ¾ ton pickup with off-road chops, huge presence and the trailering tech to match.