1-OWNER -- DURAMAX 3.0L TURBO-DIESEL -- 4WD -- FACTORY 2" LIFT -- OFF-ROAD SUSPENSION & SKID PLATES -- MULTIPRO TAILGATE -- SPRAY-IN BEDLINER -- HEATED & VENTILATED FRONT SEATS -- TRAILER BRAKE CONTROLLER -- HITCH GUIDANCE -- APPLE CARPLAY/ANDROID AUTO -- 120V BED OUTLET -- BLACK RUNNING BOARDS --
Weâve just taken in a 2020 GMC Sierra 1500 AT4 Crew Cab Pickup. Itâs finished in Dark Sky Metallic with a Jet Black leather interior accented by Kalahari trimâ"ruggedly bold yet upscale and refined. With 103,817 miles, just one previous owner, and a Good condition rating, this Sierra AT4 offers the rare combination of diesel efficiency, off-road hardware, and premium interior comforts.
At its core is GMCâs Duramax 3.0L turbo-diesel I6 paired with a 10-speed automatic transmission. Delivering 277 horsepower and a massive 460 lb-ft of torque, this setup gives you effortless towing, calm highway cruising, and fuel efficiency of up to 26 MPG highway and 22 MPG city. The AT4âs 4WD system includes off-road suspension, skid plates, hill descent control, and all-terrain tires, making it equally at home on muddy trails or snowy commutes.
Add the integrated trailer brake controller, Hitch Guidance with Hitch View, and the in-vehicle Trailering App, and this truck becomes a confident towing partner. Black running boards and a soft tonneau cover add convenience and protected cargo space.
Step inside, and the AT4 greets you with heated and ventilated front bucket seats, heated rear outboard seats, and a heated steering wheelâ"comfort that takes the sting out of icy mornings and hot afternoons alike. The driver enjoys memory seat settings, a 10-way power seat, and a clear view of key vehicle stats via the color Driver Information Center. The leather-wrapped steering wheel, Jet Black and Kalahari accents, and thoughtful storage in the center console add both sophistication and practicality.
Technology is where the Sierra shines. GMCâs Premium Infotainment System with 8-inch touchscreen delivers wireless Apple CarPlay and Android Auto, Bluetooth, HD Radio, SiriusXM with 360L, voice commands, and available 4G LTE Wi-Fi. Wireless charging keeps your phone topped up, while USB-A and USB-C ports front and rear keep passengers connected. With premium audio, navigation features, and trailer-specific tools, every drive feels both smart and capable.
Utility meets innovation in the truck bed. The spray-on bedliner shrugs off heavy use, LED cargo box lighting keeps gear visible at night, and the MultiPro tailgateâs six functions transform into a step, a workbench, or a load stop as needed. CornerStep rear bumpers, a 120-volt bed-mounted outlet, wheelhouse liners, and integrated tie-downs all make this Sierra ready for real work and real play. Up front, LED reflector headlamps, signature daytime running lights, and body-color bumpers complete its athletic stance.
If youâre searching for a truck that balances diesel efficiency, trail-ready confidence, and luxury-grade comfort, this Sierra 1500 AT4 is the one. And at Huebner Chevrolet Subaru, youâll also enjoy upfront pricing with no hidden fees, flexible financing, and free delivery up to 150 miles. Diesel-powered AT4s with this equipment and one-owner history donât last longâ"call, text, email, or start your purchase online today.
Used 2020 GMCSierra 1500 AT4
- Exterior Color
- Dark Sky Metallic
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 103,817 miles
- Body/Seating
- Crew Cab Pickup/5 seats
- Fuel Economy
- 16/21 MPG City/Hwy
- Transmission
- Automatic
- Engine
- 6
- VIN
- 1GTU9EET3LZ278429
- Stock Number
- 71914A
GMC
Sierra 1500
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Ventilated front seats
Included Packages & Options
- Engine: Duramax 3.0L Turbo-Diesel I6$995
- 220 Amp Alternator
- Engine Block Heater
- 850 Heavy-Duty Battery
- Delete External Engine Oil Cooler
- GVWR: 7,100 lbs
Easy, Simple & Stress-Free Buying
About This Vehicle
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Radio data system
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: I-6
- Cylinder deactivation
- Drive type: four-wheel
- Engine liters: 3.0L
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 18mpg
- Fuel economy fuel type: gasoline
- Fuel economy highway: 21mpg
- Fuel tank capacity: 24.0gal.
- Horsepower: 277hp @ 3,750RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 24
- Rear locking differential
- Variable intake manifold
- Variable valve control
- Ground clearance (min): 276mm (10.9")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch receiver
- Trailer sway control
- Compression ratio: 15.00 to 1
- Curb weight: 2,486kg (5,480lbs)
- Engine bore x stroke: 84.0mm x 90.0mm (3.31" x 3.54")
- Engine horsepower: 277hp @ 3,750RPM
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- Exterior length: 5,885mm (231.7")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- GVWR: 3,221kg (7,100lbs)
- Payload: 712kg (1,570lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,744mm (147.4")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
KBB.com Consumer Reviews

Overall4Out of 5
- 3.0
Nice truck
By froggy | on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.… - 5.0
Great Truck
By Mel | on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.… - 5.0
Well done GM
By Tony | on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!…
Based on 88 consumer ratings for 2019–2025 models. | Privacy
Included Packages & Accessories
- 10-Way Power Driver Seat Adjuster w/Lumbar
- All-Weather Floor Liners w/AT4 Logo
- Rear Wheelhouse Liners
- Electric Rear-Window Defogger
- Heavy-Duty Rear Locking Differential
- 3.23 Rear Axle Ratio
- High-Capacity Air Filter
- Heated 2nd Row Outboard Seats
- 2 USB Ports
- GVWR: 7,100 lbs
- Engine: Duramax 3.0L Turbo-Diesel I6
- 220 Amp Alternator
- Engine Block Heater
- 850 Heavy-Duty Battery
- Delete External Engine Oil Cooler
Standard Features
- 220 Amp Alternator
- Engine Block Heater
- 850 Heavy-Duty Battery
- Delete External Engine Oil Cooler
- GVWR: 7,100 lbs
- Call |: 330-427-4613