Used 2020 GMCSierra 1500 AT4

  • Diesel
Located at
Flowood Mac Haik CDJR
    Exterior Color
    Satin Steel
    Interior Color
    Jet Black
    Odometer
    106,768 miles
    Body/Seating
    Truck Crew Cab/5 seats
    Seats
    5 seats
    Fuel Economy
    22/26 MPG City/Hwy
    Transmission
    10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED
    Drivetrain
    4x4
    Engine
    I-6 cyl
    VIN
    3GTU9EET6LG340129
    Stock Number
    XLG340129
    GMC Sierra 1500
    • Show Me the CARFAX Great Value Badge

    Highlighted Features

    • Navigation system
    • Leather upholstery
    • Automatic temperature control
    • Premium audio system
    • Wireless phone connectivity
    • Parking sensors
    • Front dual zone A/C
    • Auto-dimming rearview mirror
    • Split folding rear seat
    • Memory seat
    • Heated front seats
    • Ventilated front seats

    Included Packages & Accessories

    • Federal Emissions Requirements
    • Engine: Duramax 3.0L Turbo-Diesel I6
    • 220 Amp Alternator
    • Engine Block Heater
    • 850 Heavy-Duty Battery
    • Delete External Engine Oil Cooler
    • GVWR: 7,100 lbs
    • Transmission: 10-Speed Automatic
    • 3.23 Rear Axle Ratio
    • Wheels: 20" x 9" Machined Aluminum
    • Tires: 275/60R20SL AT BW
    • 255/80R17SL AS BW Spare Tire
    • Front Bucket Seats
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Driver Memory
    • Radio: Premium GMC Infotainment Sys w/Navigation
    • SiriusXM w/360L
    • AT4 Premium Package
    • AT4 Preferred Package
    • Universal Home Remote
    • Power Sliding Rear Window w/Rear Defogger
    • Premium Bose 7-Speaker Sound System
    • Wireless Charging
    • Tires: LT275/65R18C MT BW
    • Driver Alert Package I
    • Ultrasonic Front & Rear Park Assist
    • Lane Change Alert w/Side Blind Zone Alert
    • Rear Cross Traffic Alert
    • Perimeter Lighting
    • 6" Rectangular Black Tubular Assist Steps

    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
    • Garage door transmitter
    • Heated steering wheel
    • Illuminated entry
    • Memory seat
    • Navigation system
    • 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 tires: 275/60SR20.0
    • Front wheel independent suspension
    • Power steering
    • Rear tires: 275/60SR20.0
    • Speed-sensing steering
    • Tires: all-terrain
    • Wheel size: 20"
    • 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
    • Speaker type: Bose
    • Speakers: 7
    • 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: 22mpg
    • Fuel economy combined: 18mpg
    • Fuel economy fuel type: gasoline
    • Fuel economy highway: 26mpg
    • 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")
    • Turning radius: 7.1m (23.5')
    • Wheelbase: 3,744mm (147.4")
    • Appearance: analog
    • Blind spot: Lane Change Alert with Side Blind Zone Alert warning
    • Compass
    • Delay-off headlights
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: UltraSonic front and rear
    • 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
    • Rear collision: Rear Cross-Traffic Alert warning
    • Security system
    • Traction control

    Dealer Notes

    This 2020 GMC Sierra 1500 AT4, comes with a Satin Steel Metallic exterior and Jet Black w/Kalahari Accents interior color with only 106,768 miles. stock number XLG340129. You can connect
    With us by calling 601-914-4000.




    Important Package and Feature Information

    Driver Alert Package I

    • Perimeter Lighting
    • Ultrasonic Front and Rear Park Assist
    • Rear Cross Traffic Alert
    • Lane Change Alert with Side Blind Zone Alert

    AT4 Premium Package ($2,105 value)

    • LT275/65R18C MT BW Tires

    Preferred Equipment Group 4SB

    • All-Weather Floor Liners with AT4 Logo
    • GMC Connected Access Capable
    • Power Front Passenger Windows with Express Up/down
    • Power Rear Windows with Express Down
    • Deep-Tinted Glass
    • Keyless Open and Start
    • Power Door Locks
    • Power Front Windows with Driver Express Up/down
    • Rear Wheelhouse Liners
    • Color-Keyed Carpeting Floor Covering
    • Remote Vehicle Starter System
    • Electric Rear-Window Defogger
    • Spray-On Pickup Bed Liner with AT4 Logo
    • Compass
    • Hitch Guidance
    • Floor-Mounted Center Console
    • Heavy-Duty Rear Locking Differential
    • Body-Color Surround Grille
    • Hill Descent Control
    • Integrated Trailer Brake Controller
    • High-Capacity Air Filter
    • Heated Driver and Front Outboard Passenger Seating
    • Heated 2nd Row Outboard Seats
    • 120-Volt Instrument Panel Power Outlet
    • Auxiliary External Transmission Oil Cooler
    • 12-Volt Rear Auxiliary Power Outlet
    • Ventilated Driver and Front Passenger Seats
    • 170 Amp Alternator
    • 2 USB Ports
    • 2 USB Ports (1st Row)
    • Electrical Lock Control Steering Column
    • Manual Tilt-Wheel and Telescoping Steering Column
    • 2-Speed Transfer Case
    • Skid Plates
    • ProGrade Trailering System
    • 18 X 8.5 Machined Aluminum Wheels
    • HD Radio
    • 4.2 Diagonal Color Display Driver Info Center
    • OnStar and GMC Connected Services Capable
    • LED Cargo Area Lighting
    • Red Recovery Hooks
    • Steering Wheel Audio Controls
    • Rear Dual USB Charging-Only Ports
    • Theft Deterrent System (unauthorized Entry)
    • HD Rear Vision Camera
    • 4G LTE Wi-Fi Hotspot Capable
    • Off-Road Suspension
    • Trailering Package

    AT4 Preferred Package

    • Power Sliding Rear Window with Rear Defogger
    • Premium GMC Infotainment System Radio with Navigation
    • Wireless Charging
    • Universal Home Remote
    • Premium Bose 7-Speaker Sound System




    Safety and Security

    • The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display.
    • The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display.
    • Brake assist senses panic braking from the speed of the brake pedal's travel and applies all available power brake boost.

    Technology and Telematics

    • Without the need for a manufacturer specific app to be installed on the smart device, the vehicle infotainment system can access and control functions of a smart device physically plugged-into the vehicle.
    • Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network.


    EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 3.0L TURBO-DIESEL I6, TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, GVWR, 7100 LBS. (3221 KG), REAR AXLE, 3.23 RATIO, WHEELS, 20 X 9 (50.8 CM X 22.9 CM) MACHINED ALUMINUM WITH CARBON GREY METALLIC ACCENTS, TIRES, 275/60R20SL ALL-TERRAIN, BLACKWALL, SEATS, FRONT BUCKET, JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHER-APPOINTED FRONT SEAT TRIM, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL COLOR TOUCH-SCREEN, INCLUDES MULTI-TOUCH DISPLAY, AM/FM STEREO, AT4 PREMIUM PACKAGE, AT4 PREFERRED PACKAGE, DRIVER ALERT PACKAGE I, ENGINE BLOCK HEATER, ALTERNATOR, 220 AMPS, TIRE, SPARE 255/80R17SL ALL-SEASON, BLACKWALL, LPO, BLACK TUBULAR ASSIST STEPS, 6 RECTANGULAR, WINDOW, POWER, REAR SLIDING WITH REAR DEFOGGER, BOSE SOUND SYSTEM, PREMIUM 7-SPEAKER SYSTEM, UNIVERSAL HOME REMOTE, WIRELESS CHARGING, FRONT AND REAR PARK ASSIST, ULTRASONIC, LANE CHANGE ALERT, REAR CROSS TRAFFIC ALERT
    At Flowood Mac Haik CDJR, we're here to Serve you! Our staff is 100% dedicated to customer satisfaction and we understand that you need clear, transparent information throughout the car buying process. With our live market pricing philosophy, we offer the right cars at the right price, and the transparency to back it up!

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall4.0Out of 5
    • Depreciation of 50%

      By Manny A on 10/28/2026 10:06:36 AM

      4.0
      This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again.…
    • 2021 GMC SLT 4WD SIERRA, Great Truck

      By Ransom1 on 10/15/2026 4:18:42 PM

      5.0
      This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime.…
    • Great 4 cylinder truck

      By Steve on 9/23/2026 2:01:15 AM

      5.0
      I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.…

    All advertised pre-owned vehicle prices reflect our group’s all-in internet pricing, which includes all mandatory reconditioning fees, certification costs, documentation charges, and pre-installed equipment. Total advertised pricing excludes only required government charges, including state sales tax, title, vehicle registration, and licensing fees. Any remaining balance of an original manufacturer warranty, optional factory-certified coverage extensions, or open safety recall updates are subject entirely to the respective vehicle manufacturer’s terms and processing validation. Final financing terms, payment structures, and trade values are calculated based on third-party lender approval and actual vehicle valuation. While every reasonable effort is made to maintain complete data inventory syncs across all three group locations, typographical or system errors may occasionally occur. Please confirm exact mileage, equipment availability, physical condition, directly with the listing dealership location.