Pre-Owned 2025 GMCSierra 2500 HD AT4 4x4

  • Diesel
    Exterior Color
    Summit White
    Interior Color
    Jet Black
    Odometer
    34,311 miles
    Body/Seating
    Truck/5 seats
    Seats
    5 seats
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    1GT4UPEYXSF188118
    Stock Number
    M6496A
    GMC Sierra 2500 HD
    • Show Me the CARFAX 1-Owner Badge

    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

    • Wheels: 20" High Gloss Black 8 Spokes Aluminum
    • Gooseneck/5th Wheel Prep Package
    • GMC MultiPro Tailgate Step Lights
    • Radio: AM/FM Stereo with Premium GMC Infotainment System
    • Front License Plate Kit
    • 1st and 2nd Rows All-Weather Floor Liners
    • Body Color Wheel Arch Moldings
    • Power-Retractable Black Assist Steps
    • Inside Rearview Auo-Dimming Rear Camera Mirror
    • 220-Amp Alternator
    • Tires: LT275/65R20 AT BW
    • LT275/70R18 AT BW Spare Tire
    • Technology Package
    • Multicolor 15" Diagonal Head-Up Display
    • Transmission: Allison 10-Speed Automatic
    • GVWR: 11,350 lbs
    • Engine: Duramax 6.6L Turbo-Diesel V8
    • Capped Fuel Fill
    • Dual Heavy-Duty 70 Amp Battery
    • Winter Grille Cover
    • Exhaust Brake
    • Engine Block Heater
    • 3.42 Axle Ratio
    • Universal Home Remote
    • Power Sunroof
    • 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
    • Skid Plates
    • Off-Road Suspension
    • ProGrade Trailering System
    • Hitch Guidance with Hitch View
    • in-Vehicle Trailering System App
    • Engine: 6.6L V8 with Direct Injection and Variable Valve Timing
    • Heavy-Duty 80 Amp Battery
    • GVWR: 10,850 lbs
    • 2-Speed Active Transfer Case
    • LED Smoked Amber Roof Marker Lamps
    • AT4 Premium Plus Package
    • AT4 Preferred Package
    • Power Sliding Rear Window with Defogger
    • Off-Road High Clearance Step

    Included Packages & Options

    Engine: Duramax 6.6L Turbo-Diesel V8

    $9,990 included in TSRP
    • Capped Fuel Fill
    • 220-Amp Alternator
    • Dual Heavy-Duty 70 Amp Battery
      Includes 730 cold-cranking amps, maintenance-free with rundown protection and retained accessory power.
    • Winter Grille Cover

    AT4 Premium Plus Package

    $4,035 included in TSRP
    • AT4 Preferred Package
    • Power Sunroof
    • Technology Package
    • Off-Road High Clearance Step
      Dealer installed.

    Technology Package

    $1,340 included in TSRP
    • Inside Rearview Auo-Dimming Rear Camera Mirror
      Includes full camera display.
    • Multicolor 15" Diagonal Head-Up Display

    AT4 Preferred Package

    $405 included in TSRP
    • Universal Home Remote
    • Power Sliding Rear Window with Defogger
    • LED Smoked Amber Roof Marker Lamps

    More manufacturer pre-installed items

    $4,195 total, included in TSRP
    • Gooseneck/5th Wheel Prep Package$545
      Hitch platform to accept gooseneck or 5th wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
    • GMC MultiPro Tailgate Step Lights$195
      Dealer installed.
    • 1st and 2nd Rows All-Weather Floor Liners$295
      Includes AT4 logo.
    • Body Color Wheel Arch Moldings$865
      Dealer installed.

    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 wheel independent suspension
    • Power steering
    • Single rear wheels
    • Speed-sensing steering
    • Tires: all-terrain
    • 1st row LCD monitors: 2
    • Primary LCD size: 13.4"
    • 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
    • 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: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel tank capacity: 36.0gal.
    • Horsepower: 470hp @ 2,800RPM
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Number of valves: 32
    • Rear locking differential
    • Recommended fuel: Diesel
    • Standard fuel economy fuel type: diesel
    • Torque: 975 lb.-ft. @ 1,600RPM
    • 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: 16.00 to 1
    • Curb weight: 3,733kg (8,229lbs)
    • Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
    • Engine displacement: 6.6 L
    • Engine torque: 975 lb.-ft. @ 1,600RPM
    • 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: 5,148kg (11,350lbs)
    • Payload: 1,398kg (3,083lbs)
    • 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: 8,391kg (18,500lbs)
    • 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
    • Traction control

    Standard Features

    • Capped Fuel Fill
    • 220-Amp Alternator
    • Dual Heavy-Duty 70 Amp Battery
    • Winter Grille Cover
    • Exhaust Brake
    • Engine Block Heater
    • GVWR: 11,350 lbs
    • 3.42 Axle Ratio
    • Transmission: Allison 10-Speed Automatic
    • 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
    • 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
    • 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

    Let's go for a test drive! We look forward to helping you find exactly what you want right now.

    This 2025 GMC Sierra 2500HD AT4 is built for serious work and adventure. Finished in white with a Duramax 6.6L V8 Turbodiesel engine and 4WD, this truck commands respect on any terrain. The AT4 trim delivers premium capability with a comprehensive suite of features designed for towing, off-road performance, and daily comfort.

    KEY FEATURES:
    - Back Up Camera & HD Surround Vision
    - Premium GMC Infotainment System with 13.4" touchscreen, Google Built-in, wireless Apple CarPlay & Android Auto
    - Bose Premium Sound System with SiriusXM Audio
    - Heated & Ventilated Leather Front Seats with 10-Way Power Adjustment
    - Advanced Safety: Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert
    - Power Sunroof
    - Trailer Brake Controller with Vehicle Trailering App
    - Auto Locking Rear Differential & 2-Speed AutoTrac Transfer Case
    - All-Terrain Tires with Skid Plates
    - 220 Amp Alternator & Engine Block Heater
    - GMC MultiPro Tailgate with Step Lights

    This Sierra has been dealer maintained with a clean Carfax history one owner, no accidents reported. You'll appreciate the meticulous service records and the confidence that comes with certified dealer care. With premium leather, dual-zone climate control, and heated steering wheel, every drive feels refined. Whether you're managing job sites or exploring remote trails, this AT4 delivers the performance and luxury you deserve. Visit us today to experience the commanding presence and capability of this outstanding truck.
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