Share
New 2026 GMC Sierra 2500HD AT4 Truck Crew Cab Photo 1 of 21

New 2026 GMCSierra 2500HD AT4


    Exterior Color
    Onyx Black
    Interior Color
    Jet Black
    Body/Seating
    Truck Crew Cab/5 seats
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    1GT4UPE77TF115488
    Stock Number
    00115488
    GMC Sierra 2500HD

    Highlighted Features

    • 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
    • Front dual zone A/C

    Included Packages & Accessories

    • Console-Mounted Safe
    • Wheels: 20" High Gloss Black 8 Spokes Aluminum
    • Radio: AM/FM Stereo with Premium GMC Infotainment System
    • Front License Plate Kit
    • Transmission: 10-Speed Automatic
    • Power-Retractable Black Assist Steps
    • 3.73 Rear Axle Ratio
    • Snow Plow Prep/Camper Package
    • 220-Amp Alternator
    • Skid Plates
    • AT4 Premium Plus Package
    • AT4 Preferred Package
    • Universal Home Remote
    • Power Sliding Rear Window with Defogger
    • LED Smoked Amber Roof Marker Lamps
    • Power Sunroof
    • Technology Package
    • Inside Rearview Auo-Dimming Rear Camera Mirror
    • Multicolor 15" Diagonal Head-Up Display
    • Off-Road High Clearance Step
    • Tires: LT275/65R20 AT BW
    • LT275/70R18 AT BW Spare Tire
    • Engine: 6.6L V8 with Direct Injection and Variable Valve Timing
    • Heavy-Duty 80 Amp Battery
    • GVWR: 10,850 lbs
    • Front Bucket Seats
    • 10-Way Power Driver Seat Adjuster with Lumbar
    • 10-Way Power Passenger Seat Adjuster with Lumbar
    • Driver Memory
    • Preferred Equipment Group 4SB
    • Sierra HD Pro Safety
    • Forward Collision Alert
    • Following Distance Indicator
    • Front Pedestrian Braking
    • IntelliBeam Automatic High Beam on/Off
    • Lane Departure Warning
    • Buckle to Drive
    • Automatic Emergency Braking
    • Safety Alert Seat
    • Rear Cross Traffic Alert
    • Trailer Side Blind Zone Alert
    • Wireless Phone Projection
    • Bose Premium 7-Speaker Sound System
    • SiriusXM with 360L Trial Subscription
    • Floor-Mounted Center Console
    • Electric Rear-Window Defogger
    • Push Button Start
    • Remote Vehicle Starter System
    • Keyless Open and Start
    • Front Premium Floor Liners with Removable Carpet Insert
    • Rear Premium Floor Liners with Removable Carpet Insert
    • OnStar Services Capable
    • 120-Volt Instrument Panel Power Outlet
    • 120-Volt Bed Mounted Power Outlet
    • 2 Charge-Only Rear USB Ports
    • 2 USB Ports
    • 2 Charge/Data USB Ports Inside Center Console
    • Spray-on Pickup Bedliner with GMC Logo
    • HD Surround Vision
    • Bed View Camera with Two Trailer Camera Provisions
    • Trailer Cam Provisions and Trailer Viewing Software
    • Heated Driver and Front Outboard Passenger Seats
    • Ventilated Driver and Front Passenger Seats
    • Heated 2nd Row Outboard Seats
    • Deep-Tinted Glass
    • Gloss Black Header Grille and Grille Insert Bars
    • Steering Wheel Audio Controls
    • LED Cargo Area Lighting
    • Manual Tilt-Wheel/Telescoping Steering Column
    • Unauthorized Entry Theft-Deterrent System
    • Power Front Passenger Windows with Express Up/Down
    • Wireless Charging
    • Ultrasonic Front and Rear Park Assist
    • Rear Wheelhouse Liners
    • Front Rain-Sensing Wipers
    • X31 Off-Road Package
    • Hill Descent Control
    • Off-Road Suspension
    • ProGrade Trailering System
    • Hitch Guidance with Hitch View
    • in-Vehicle Trailering System App
    • 2-Speed Active Transfer Case

    Included Packages & Options

    • AT4 Premium Plus Package$4,035
      • AT4 Preferred Package
      • Power Sunroof
      • Technology Package
      • Off-Road High Clearance Step
    • Technology Package$1,340
      • Inside Rearview Auo-Dimming Rear Camera Mirror
      • Multicolor 15" Diagonal Head-Up Display
    • Snow Plow Prep/Camper Package$530
      • 220-Amp Alternator
      • Skid Plates
    • AT4 Preferred Package$405
      • Universal Home Remote
      • Power Sliding Rear Window with Defogger
      • LED Smoked Amber Roof Marker Lamps
    Included Options
    • Console-Mounted Safe$350
    • Power-Retractable Black Assist Steps$2,295

    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
    • 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: 275/65SR20.0E
    • Front wheel independent suspension
    • Power steering
    • Rear tires: 275/65SR20.0E
    • Single rear wheels
    • 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"
    • 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
    • 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
    • Compressor: Not Available
    • Cylinder configuration: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel tank capacity: 36.0gal.
    • Horsepower: 401hp @ 5,200RPM
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Number of valves: 16
    • Rear locking differential
    • Recommended fuel: Regular Unleaded
    • Standard fuel economy fuel type: gasoline
    • Torque: 464 lb.-ft. @ 4,000RPM
    • Transmission: 10 speed automatic
    • Variable valve control
    • Ground clearance (min): 257mm (10.1")
    • 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
    • Trailer hitch
    • Trailer sway control
    • Turn signal indicator mirrors
    • Compression ratio: 10.80 to 1
    • Curb weight: 3,347kg (7,378lbs)
    • Engine bore x stroke: 103.3mm x 98.0mm (4.07" x 3.86")
    • Engine displacement: 6.6 L
    • Engine torque: 464 lb.-ft. @ 4,000RPM
    • Exterior body width: 2,079mm (81.8")
    • Exterior height: 2,027mm (79.8")
    • Exterior length: 6,369mm (250.8")
    • 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: 4,921kg (10,850lbs)
    • Payload: 1,555kg (3,428lbs)
    • Rear headroom: 1,019mm (40.1")
    • Rear hiproom: 1,530mm (60.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,659mm (65.3")
    • Towing capacity: 7,257kg (16,000lbs)
    • Turning radius: 8.0m (26.3')
    • Wheelbase: 4,039mm (159.0")
    • 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 Departure Warning warning
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: UltraSonic 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 Alert warning
    • Security system
    • Tracker system: Stolen Vehicle Assistance
    • Traction control

    Standard Features

    • AT4 Preferred Package
    • Power Sunroof
    • Technology Package
    • Off-Road High Clearance Step
    • Inside Rearview Auo-Dimming Rear Camera Mirror
    • Multicolor 15" Diagonal Head-Up Display
    • 220-Amp Alternator
    • Skid Plates
    • Universal Home Remote
    • Power Sliding Rear Window with Defogger
    • LED Smoked Amber Roof Marker Lamps
    • Sierra HD Pro Safety
    • Safety Alert Seat
    • Rear Cross Traffic Alert
    • Trailer Side Blind Zone Alert
    • Wireless Phone Projection
    • Bose Premium 7-Speaker Sound System
    • SiriusXM with 360L Trial Subscription
    • Floor-Mounted Center Console
    • Electric Rear-Window Defogger
    • Push Button Start
    • Remote Vehicle Starter System
    • Keyless Open and Start
    • Front Premium Floor Liners with Removable Carpet Insert
    • Rear Premium Floor Liners with Removable Carpet Insert
    • OnStar Services Capable
    • 120-Volt Instrument Panel Power Outlet
    • 120-Volt Bed Mounted Power Outlet
    • 2 Charge-Only Rear USB Ports
    • 2 USB Ports
    • 2 Charge/Data USB Ports Inside Center Console
    • Spray-on Pickup Bedliner with GMC Logo
    • HD Surround Vision
    • Bed View Camera with Two Trailer Camera Provisions
    • Trailer Cam Provisions and Trailer Viewing Software
    • Heated Driver and Front Outboard Passenger Seats
    • Ventilated Driver and Front Passenger Seats
    • Heated 2nd Row Outboard Seats
    • Deep-Tinted Glass
    • Gloss Black Header Grille and Grille Insert Bars
    • Steering Wheel Audio Controls
    • LED Cargo Area Lighting
    • Manual Tilt-Wheel/Telescoping Steering Column
    • Unauthorized Entry Theft-Deterrent System
    • Power Front Passenger Windows with Express Up/Down
    • Wireless Charging
    • Ultrasonic Front and Rear Park Assist
    • Rear Wheelhouse Liners
    • Front Rain-Sensing Wipers
    • X31 Off-Road Package
    • ProGrade Trailering System
    • Engine: 6.6L V8 with Direct Injection and Variable Valve Timing
    • 2-Speed Active Transfer Case
    • Forward Collision Alert
    • Following Distance Indicator
    • Front Pedestrian Braking
    • IntelliBeam Automatic High Beam on/Off
    • Lane Departure Warning
    • Buckle to Drive
    • Automatic Emergency Braking
    • 10-Way Power Driver Seat Adjuster with Lumbar
    • 10-Way Power Passenger Seat Adjuster with Lumbar
    • Driver Memory
    • Heavy-Duty 80 Amp Battery
    • GVWR: 10,850 lbs
    • LT275/70R18 AT BW Spare Tire
    • Hitch Guidance with Hitch View
    • in-Vehicle Trailering System App
    • Hill Descent Control
    • Skid Plates
    • Off-Road Suspension

    Dealer Notes

    This GMC Sierra 2500HD delivers a Gas V8 6.6L/ engine powering this Automatic transmission. WINDOW, POWER, REAR SLIDING WITH REAR DEFOGGER, WHEELS, 20 (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS 8 spokes (STD), UNIVERSAL HOME REMOTE.

    This GMC Sierra 2500HD Comes Equipped with These Options
    TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display, SNOW PLOW PREP/CAMPER PACKAGE includes (KW5) 220-amp alternator, includes increased front GAWR on Heavy Duty models, (NZZ) skid plates (transfer case and oil pan), pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisions, AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) AT4 high clearance step, LPO, AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote, (A48) rear sliding power window and (U01) Roof Marker Lamps , TRANSMISSION, 10-SPEED AUTOMATIC (STD), TIRES, LT275/65R20 ALL-TERRAIN, BLACKWALL (STD), SUNROOF, POWER, SEATS, FRONT BUCKET with center console (STD), REAR CAMERA MIRROR inside rearview auto-dimming with full camera display, REAR AXLE, 3.73 RATIO.

    Stop By Today
    Test drive this must-see, must-drive, must-own beauty today at Gates GMC Nissan Buick, 143 Boston Post Rd, North Windham, CT 06256.

    Price does not include taxes, title, license, and dealer conveyance fee of $598.25.

    Retail Value
    $77,130
    Value Your Trade
    Get Pre-Approved (No Impact On Credit Score)
    $1,115/mo

    72 Months @ 6.9% A.P.R. (estimated financing rate) $11,570 Down Payment

    View Window Sticker
    • We're here to help: (860) 456-0055
    Disclaimer: Features subject to change depending on manufacturer configuration