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New 2026 GMCSierra 1500 AT4

  • Diesel
On the Lot
at Jake Sweeney Buick GMC
Location Details
    Exterior Color
    Onyx Black
    Interior Color
    Jet Black with Kalahari accents, Perforated leathe
    Body/Seating
    Truck/5 seats
    Fuel Economy
    22/26 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    3.0L Duramax® Turbo Diesel engine
    VIN
    1GTUUEE89TZ384538
    Stock Number
    LG26-449
    GMC Sierra 1500

    Highlighted Features

    • Navigation system
    • Lane departure
    • Leather upholstery
    • Automatic temperature control
    • Emergency communication system
    • Power moonroof
    • Wireless phone connectivity
    • Parking sensors
    • Exterior parking camera front
    • Exterior parking camera left
    • Exterior parking camera right
    • Exterior parking camera rear

    Included Packages & Accessories

    Detailed Specifications

    • 1-touch down
    • 1-touch up
    • Adaptive Cruise Control
    • Air conditioning
    • Auto-dimming rearview mirror
    • Automatic temperature control
    • Driver door bin
    • Driver vanity mirror
    • Emergency communication system: OnStar
    • Front beverage holders
    • Front dual zone A/C
    • Garage door transmitter
    • Heated steering wheel
    • Illuminated entry
    • Memory seat
    • Moonroof sunshade: manual
    • Navigation system
    • Overhead console
    • Passenger door bin
    • Passenger vanity mirror
    • Power moonroof
    • Power windows
    • Proximity key: doors and push button start
    • Rear beverage holders
    • Rear door bins
    • Remote engine start
    • Remote keyless entry
    • Speed control
    • Surround View Monitor: HD Surround Vision w/Hitch View yes
    • 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
    • Primary LCD size: 13.4"
    • 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
    • Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
    • Wireless Phone Charger: front
    • Wireless phone connectivity: Bluetooth
    • Basic warranty: 36 months/36,000miles
    • Corrosion perforation warranty: 72 months/100,000miles
    • Diesel engine warranty: 60 months/100,000miles
    • Maintenance warranty: 12 months/ unlimited distance
    • Powertrain warranty: 60 months/60,000miles
    • Roadside assistance coverage: 60 months/60,000miles
    • 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
    • Drive type: four-wheel
    • Engine liters: 3.0L
    • Engine location: front
    • Fuel economy city: 22mpg
    • Fuel economy combined: 24mpg
    • Fuel economy highway: 26mpg
    • Fuel tank capacity: 24.0gal.
    • Horsepower: 305hp @ 3,750RPM
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Number of valves: 24
    • Rear locking differential
    • Recommended fuel: Diesel
    • Standard fuel economy fuel type: diesel
    • Torque: 495 lb.-ft. @ 2,750RPM
    • Transmission: 10 speed automatic
    • Variable intake manifold
    • Variable valve control
    • Approach angle: 26 deg
    • Departure angle: 23 deg
    • Ground clearance (min): 282mm (11.1")
    • Ramp breakover angle: 21 deg
    • Auto-dimming door mirrors
    • Bedliner
    • Bumpers: body-color
    • Heated door mirrors
    • Hitch Class: IV
    • Left rear passenger door: conventional
    • Power door mirrors
    • Rear cargo: tailgate
    • Rear step bumper
    • Right rear passenger: conventional
    • Skid plates
    • Tailpipe finisher: chrome
    • Trailer hitch
    • Trailer sway control
    • Compression ratio: 15.00 to 1
    • Curb weight: 2,495kg (5,500lbs)
    • Engine bore x stroke: 84.0mm x 90.0mm (3.31" x 3.54")
    • Engine displacement: 3.0 L
    • Engine torque: 495 lb.-ft. @ 2,750RPM
    • Exterior body width: 2,063mm (81.2")
    • Exterior height: 1,990mm (78.3")
    • Exterior length: 5,916mm (232.9")
    • Front headroom: 1,013mm (39.9")
    • Front hiproom: 1,544mm (60.8")
    • Front legroom: 1,131mm (44.5")
    • Front shoulder room: 1,638mm (64.5")
    • GVWR: 3,266kg (7,200lbs)
    • Greenhouse Gas Score (GG): 4
    • Payload: 757kg (1,670lbs)
    • Rear headroom: 1,019mm (40.1")
    • Rear hiproom: 1,505mm (59.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,626mm (64.0")
    • Towing capacity: 3,992kg (8,800lbs)
    • Turning radius: 7.2m (23.7')
    • Wheelbase: 3,747mm (147.5")
    • Appearance: digital/analog
    • Auto high-beam headlights
    • Blind spot: Trailer Side Blind Zone Alert warning
    • Compass
    • Configurable
    • Delay-off headlights
    • Exterior parking camera cargo
    • Exterior parking camera front
    • Exterior parking camera left
    • Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
    • Exterior parking camera right
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Heads up display
    • Lane departure: Lane Keep Assist with Lane Departure Warning active
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: Front and Rear Park Assist front and rear
    • Rain sensing wipers
    • 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
    • Forward collision: Forward Collision Alert with Automatic Braking mitigation
    • Front pedestrian detection: prevention
    • Ignition disable
    • Occupant sensing airbag
    • Overhead airbag
    • Panic alarm
    • Perimeter/approach lights
    • Rear collision: Rear Cross Traffic Braking mitigation
    • Security system
    • Tracker system: Stolen Vehicle Assistance
    • Traction control

    Dealer Notes

    Our 2026 GMC Sierra 1500 AT4 Crew Cab 4X4 in Onyx Black delivers diesel-powered strength, premium off-road capability, and bold AT4 design built to push through extreme challenges. Motivated by a TurboCharged 3.0 Liter DuraMax Diesel 6 Cylinder serving up 305hp and 495lb-ft of torque to a 10 Speed Automatic transmission. A 2-inch lift, a 2-speed transfer case, and an auto-locking rear differential help dominate difficult terrain, and this Four Wheel Drive truck scores nearly 27mpg on the highway. Our Sierra shows off rugged style with LED lighting, red recovery hooks, a MultiPro tailgate, robust skid plates, perimeter lighting, and bold alloy wheels.AT4 comfort surrounds you in our cabin with heated and ventilated leather power front and heated rear seats, a heated leather steering wheel, dual-zone automatic climate control, remote start, and keyless open with pushbutton ignition. Modern technologies for mobile connections include a 13.4-inch touchscreen and a 12.3-inch driver display with Google Built-In, wireless charging, WiFi compatibility, wireless Android Auto®/Apple CarPlay®, Bluetooth®, voice control, and Bose audio.Drive confidently, knowing GMC's smart safety systems include adaptive cruise control, front/rear automatic braking, HD surround vision, hill descent control, trailer blind-spot monitoring, lane-keeping assistance, trailer-sway control, and more. Crafted to exceed expectations, our Sierra 1500 AT4 is an excellent choice! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership!
    Disclaimer: All Courtesy Transportation Vehicles Have More Mileage Than Normal New Retail Units
    While we make every effort to ensure the data listed here is correct, there may be instances where some of the factory rebates, incentives, options or vehicle features may be listed incorrectly as we get data from multiple data sources. Please make sure to confirm the details of this vehicle (such as what factory rebates you may or may not qualify for) with the dealer to ensure its accuracy. The estimated selling price that appears is for informational purposes only. You may not qualify for all incentives, discounts, offers or financing options. We invite you to contact us for details concerning expiration and other restrictions. For more information please contact our Lebanon Buick GMC Dealership. 
    MSRP
    $74,400
    Doc Fee
    $398
    Purchase AllowanceDetails
    -$1,750
    Bonus CashDetails
    -$500
    Final Price
    $72,548
    Trade AssistanceDetails
    -$2,500
    GM First Responder OfferDetails
    -$500
    GM Military OfferDetails
    -$500
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