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Used 2021 GMC Sierra 2500 HD SLT Truck Photo 1 of 23

Used 2021 GMCSierra 2500 HD SLT

On the Lot
at Lunghamer Buick GMC Inc.
Location Details
    Exterior Color
    Onyx Black
    Interior Color
    JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTB
    Odometer
    126,206 miles
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    Engine: 6.6L, V-8, SIDI
    VIN
    1GT49NE78MF257680
    Stock Number
    B657651
    GMC Sierra 2500 HD
    • Show Me the CARFAX 1-Owner Badge

    Included Packages & Accessories

    Detailed Specifications

    • 3-point seatbelt : Rear seat center 3-point seatbelt
    • ABS Brakes : 4-wheel antilock (ABS) brakes
    • Auto headlights : Auto on/off headlight control
    • Auto high-beam headlights : IntelliBeam auto high-beam headlights
    • Blind spot : Lane Change Alert with Side Blind Zone Alert blind spot warning
    • Brake assist system : Predictive brake assist system
    • Brake type : 4-wheel disc brakes
    • Cab mounted cargo light : Cab mounted cargo light
    • Camera : Aerial view camera
    • Child door locks : Manual rear child safety door locks
    • Clearance lights : Cab clearance lights
    • Convex spotter : Driver and passenger convex spotter mirrors
    • Delay off headlights : Delay-off headlights
    • Distance alert : Following Distance Indicator
    • Electronic stability control : StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
    • Fog lights : LED front fog lights
    • Forward collision warning : Forward Collision Alert with Automatic Braking
    • Front camera : Front mounted camera
    • Front impact airbag driver : Driver front impact airbag
    • Front impact airbag passenger : Passenger front impact airbag
    • Front side impact airbag driver : Seat mounted side impact driver airbag
    • Front side impact airbag passenger : Seat mounted side impact front passenger airbag
    • Headlight type : Reflector headlights
    • Headlights : LED low and high beam headlights
    • High mount stop light : High mounted center stop light
    • Hill control : Hill Descent Control (HDC)
    • Hill start assist : Hill start assist
    • Illuminated entry : Illuminated entry
    • Immobilizer : Immobilizer
    • Instrumentation display : Analog instrumentation display
    • Interior courtesy lights : Fade interior courtesy lights
    • LED brake lights : LED brake lights
    • Lane departure : Lane Departure Warning
    • Left camera : Left side camera
    • Low tire pressure warning : Tire specific low air pressure warning
    • Multiple headlights : Multiple enclosed headlights
    • Number of airbags : 6 airbags
    • Occupancy sensor : Airbag occupancy sensor
    • Overhead airbags : Curtain first and second-row overhead airbags
    • Parking sensors : UltraSonic front and rear parking sensors
    • Perimeter approach lighting : Remote activated perimeter approach lighting
    • Pickup box camera : Pickup box camera
    • Rear camera : HD Rear Vision Camera w/Hitch View rear mounted camera
    • Rear collision warning : Rear Cross-Traffic Alert collision warning
    • Remote panic alarm : Remote panic alarm
    • Restricted driving mode/alerts : Teen Driver restricted driving mode/alerts
    • Right camera : Right side camera
    • Running lights : LED daytime running lights
    • Seatbelt pretensioners : Front seatbelt pretensioners
    • Seatbelt pretensioners number : 2 seatbelt pre-tensioners
    • Security system : Security system
    • Turn signal in door mirrors : Turn signal indicator in door mirrors
    • Air conditioning : Yes
    • Armrests front center : Front seat center armrest
    • Armrests front storage : Front seat armrest storage
    • Armrests rear : Rear seat center armrest
    • Cabback insulator : Cabback insulator
    • Climate control : Automatic climate control
    • Cooled front seats : Ventilated driver and front passenger seats
    • Door panel insert : Simulated wood and metal-look door panel insert
    • Door trim insert : Vinyl door trim insert
    • Driver lumbar : Driver seat with 2-way power lumbar
    • Driver seat direction : Driver seat with 8-way directional controls
    • Dual-zone front climate control : Dual-zone front climate control
    • Floor coverage : Full floor coverage
    • Floor covering : Full carpet floor covering
    • Floor mats : Rubber front and rear floor mats
    • Folding rear seats : 60-40 folding rear seats
    • Front head restraint control : Manual front seat head restraint control
    • Front head restraints : Height adjustable front seat head restraints
    • Front passenger lumbar : Front passenger seat with 2-way power lumbar
    • Front seat upholstery : Leather front seat upholstery
    • Front seatback upholstery : Plastic front seatback upholstery
    • Gearshifter material : Urethane gear shifter material
    • Headliner coverage : Full headliner coverage
    • Headliner material : Cloth headliner material
    • Heated front seats : Heated driver and front passenger seats
    • Heated rear seats : Heated rear seats
    • Heated steering wheel : Heated steering wheel
    • Interior accents : Chrome interior accents
    • Number of memory settings : 2 memory settings
    • Panel insert : Metal-look instrument panel insert
    • Passenger seat direction : Front passenger seat with 8-way directional controls
    • Power driver seat controls : Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
    • Power passenger seat controls : Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
    • Rear console climate control ducts : Rear console climate control ducts
    • Rear head restraint control : 2 rear seat head restraints
    • Rear head restraint control : Manual rear seat head restraint control
    • Rear head restraints : Height adjustable rear seat head restraints
    • Rear seat folding position : Fold-up rear seat cushion
    • Rear seat upholstery : Vinyl rear seat upholstery
    • Rear seatback upholstery : Carpet rear seatback upholstery
    • Rear seats : Split-bench rear seat
    • Rear seats fixed or removable : Fixed rear seats
    • Rear under seat ducts : Rear under seat climate control ducts
    • Seating capacity : 5
    • Split front seats : Bucket front seats
    • Steering wheel material : Leather and metal-look steering wheel
    • Steering wheel telescopic : Manual telescopic steering wheel
    • Steering wheel tilt : Manual tilting steering wheel
    • Tinted windows : Deep tinted windows
    • 12V power outlets : 2 12V power outlets
    • Accessory power : Retained accessory power
    • All-in-one key : All-in-one remote fob and ignition key
    • Auto door locks : Auto-locking doors
    • Auto-dimming door mirror driver : Auto-dimming driver side mirror
    • Auto-dimming door mirror passenger : Auto-dimming passenger side mirror
    • Battery charge warning : Battery charge warning
    • Beverage holders : Front beverage holders
    • Beverage holders rear : Rear beverage holders
    • Boxside steps : BedStep integrated side steps
    • Brake pad warning : Brake pad wear indicator
    • Capless fuel filler : Capless fuel filler
    • Clock : Digital clock
    • Compass : Compass
    • Cruise control : Cruise control with steering wheel mounted controls
    • Day/Night rearview mirror : Day/Night rearview mirror
    • Door ajar warning : Door ajar warning
    • Door bins front : Driver and passenger door bins
    • Door bins rear : Rear door bins
    • Door locks : Power door locks with 2 stage unlocking
    • Door mirrors : Power door mirrors
    • Driver foot rest : Driver foot rest
    • Driver information center : Driver information center
    • Easy lift tailgate : EZ Lift
    • Easy lower tailgate : Easy lower tailgate
    • Engine hour meter : Engine hour meter
    • Engine temperature warning : Engine temperature warning
    • Engine/electric motor temperature gauge : Engine/electric motor temperature gauge
    • Exterior 120V AC power outlet : 1 exterior 120V AC power outlet
    • First-row windows : Power first-row windows
    • Floor console : Full floor console
    • Fob engine controls : Keyless Open/Keyless Start with hands-free access and push button start
    • Folding door mirrors : Power folding door mirrors
    • Front reading lights : Front reading lights
    • Glove box : Locking glove box
    • Headlights on reminder : Headlights on reminder
    • Heated door mirrors : Heated driver and passenger side door mirrors
    • Ignition type : Push-button
    • Inclinometer : Inclinometer
    • Integrated tailgate step : Integrated tailgate step
    • Interior 120V AC power outlets : 1 interior 120V AC power outlet
    • Key in vehicle warning : Key in vehicle warning
    • Keyfob cargo controls : Keyfob trunk control
    • Keyfob keyless entry : Keyfob keyless entry
    • Keyfob remote start : Keyfob remote start
    • Keyfob window controls : Keyfob window control
    • Low level warnings : Low level warning for oil, coolant, fuel, washer fluid and brake fluid
    • Memory settings : Memory settings include: door mirrors
    • Number of beverage holders : 6 beverage holders
    • Oil pressure gauge : Oil pressure gauge
    • Oil pressure warning : Oil pressure warning
    • One-touch down window : Front and rear one-touch down windows
    • One-touch up window : Driver and passenger one-touch up windows
    • Overhead console : Mini overhead console
    • Passenger doors rear left : Conventional left rear passenger door
    • Passenger doors rear right : Conventional right rear passenger door
    • Rear cargo door : MultiPro Tailgate tailgate
    • Rear reading lights : Rear reading lights
    • Rear seat check warning : Rear Seat Reminder rear seat check warning
    • Rear seat direction : Front facing rear seat
    • Rear window defroster : Rear window defroster
    • Rearview mirror : Auto-dimming rear view mirror
    • Seatback storage pockets : 2 seatback storage pockets
    • Second-row windows : Power second-row windows
    • Service interval warning : Service interval indicator
    • Speedometer : Redundant digital speedometer
    • Steering mounted audio control : Steering wheel mounted audio controls
    • Tachometer : Tachometer
    • Tailgate control : Tailgate/power door lock
    • Temperature display : Exterior temperature display
    • Tire pressure : Tire Fill Alert tire pressure fill assist
    • Transmission fluid temperature warning : Transmission fluid temp warning
    • Transmission temperature gauge : Transmission fluid temperature gauge
    • Trip computer : Trip computer
    • Trip odometer : Trip odometer
    • Turn signal warning : Turn signal on warning
    • Under seat tray front : Locking front under seat tray
    • Under seat tray rear : Locking rear under seat tray
    • Variable panel light : Variable instrument panel light
    • Visor driver mirror : Driver visor mirror
    • Visor illuminated driver mirror : Illuminated driver visor mirror
    • Visor illuminated passenger mirror : Illuminated passenger visor mirror
    • Visor passenger mirror : Passenger visor mirror
    • Voltmeter : Voltmeter
    • Wipers : Variable intermittent front windshield wipers
    • Wireless device charging : Front wireless smart device charging
    • Bed liner : Spray-in pickup bed liner
    • Bed-rail protectors : Pickup bed-rail protectors
    • Body panels : Galvanized steel/aluminum body panels with side impact beams
    • Box style : Standard style pickup box
    • Bumper rub strip front : Chrome front bumper rub strip
    • Bumpers front : Chrome front bumper
    • Bumpers rear : Chrome rear bumper
    • Door handle material : Chrome door handles
    • Door mirror style : Chrome door mirrors
    • Door mirror type : Power extendable trailer mirrors
    • Exterior mirror spot lights : Exterior mirror LED spot lights
    • Fenders : Black fender flares
    • First-row sunroof : First-row sliding and tilting glass sunroof with express open/close activation sunshade
    • Grille style : Chrome grille
    • In-box lighting : LED in-box lighting
    • Number of doors : 4 doors
    • Paint : Non-metallic paint
    • Rear bumper step : CornerStep rear bumper step
    • Side steps : Side assist steps
    • Skid plate : 2 underbody skid plates
    • Spare tire : Full-size spare tire with steel wheel
    • Spare tire location : Crank-down spare tire
    • Special paint : Monotone paint
    • Tire sensors : Trailer tire pressure and temperature sensors
    • Tires : LT275/65SR20 AT BSW front and rear tires
    • Tow hooks front : 2 front tow hooks
    • Towing brake controller : Trailer brake controller
    • Towing class : Class IV tow rating
    • Towing hitch : Trailer hitch
    • Towing hitch light : Trailer hitch light
    • Towing prep : 5th wheel and gooseneck prep
    • Towing trailer sway : Trailer sway control
    • Towing wiring harness : Trailer wiring harness
    • Trailer light malfunction warning : GMC ProGrade Trailering System trailer light malfunction warning
    • Trailer light test : GMC ProGrade Trailering System trailer light test
    • Trailer theft alarm : GMC ProGrade Trailering System trailer theft alarm
    • Vehicle and trailer reverse assist : Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
    • Vehicle to trailer hitching assist : Hitch Guidance vehicle to trailer hitching assist
    • Wheel covers : Chrome hub wheel covers
    • Wheels : 20 x 8.5-inch front and rear machined w/painted accents aluminum wheels
    • Window Trim : Stainless steel side window trim
    • Emissions : Federal emissions
    • Emissions tiers : Tier 2 Bin 8 emissions
    • Amplifier : Amplifier
    • Antenna : Fixed audio antenna
    • Aux input jack : Auxiliary input jack
    • External memory : External memory control
    • Internet radio capability : Internet radio capability
    • Number of first-row screens : 2 total number of 1st row displays
    • Primary display size : 8 inch primary display
    • Primary display touchscreen : Primary monitor touchscreen
    • Radio : AM/FM/digital/SiriusXM with 360Lsatellite
    • Satellite trial : 3 month satellite trial subscription
    • Seek scan : Seek scan
    • Speakers : Bose speakers
    • Speakers number : 7 speakers
    • Voice activated audio : Voice activated audio controls
    • Wireless streaming : Bluetooth wireless audio streaming
    • 4WD type : AutoTrac part and full-time 4WD
    • ABS Brakes : Four channel ABS brakes
    • Alternator Type : Dual alternator
    • Auxiliary battery : Auxiliary battery
    • Battery run down protection : Battery run down protection
    • Battery type : Heavy-duty lead acid battery
    • Cylinder head material : Aluminum cylinder head
    • Displacement liters : 6.6 L
    • Drive type : Four-wheel drive
    • Driver selectable steering effort : Driver selectable steering effort
    • Electronic parking brake : Electronic parking brake
    • Engine : 6.6L V-8 gasoline direct injection, variable valve control, regular unleaded, engine with 401HP
    • Engine Configuration : V8
    • Engine Location : Front mounted engine
    • Engine Mounting direction : Longitudinal mounted engine
    • Engine Short : 6.6L V-8
    • Engine block material : Iron engine block
    • Engine cooler : Engine oil cooler
    • Front anti-roll : Front anti-roll bar
    • Fuel Type : Regular unleaded
    • HD front springs : Heavy-duty front springs
    • Horsepower : 401 HP @5200 RPM
    • Ignition : Spark ignition system
    • Lock-up transmission : Lock-up transmission
    • Locking hub control : Auto locking hub control
    • Overdrive transmission : Overdrive transmission
    • Powertrain type : ICE
    • Provisions : Snow plow provisions
    • Radiator : Radiator
    • Rear Springs : Regular grade rear springs
    • Rear locking differential : Automatic rear locking differential
    • Selectable mode transmission : Tow/Haul Mode selectable mode transmission
    • Sequential shift control : Sequential shift control
    • Shock absorbers : Rancho shock absorbers
    • Speed sensitive steering : Digital Steering Assist speed sensitive power steering
    • Springs front : Front torsion springs
    • Springs rear : Rear leaf springs
    • Steering : Hydraulic power-assist steering system
    • Steering type : Re-circulating ball steering
    • Suspension : Off-road ride suspension
    • Suspension ride type front : Independent front suspension
    • Suspension ride type rear : Rigid axle rear suspension
    • Suspension type front : Short and long arm front suspension
    • Suspension type rear : Leaf spring rear suspension
    • Tailpipe : Stainless steel single exhaust
    • Traction control : All-speed ABS and driveline traction control
    • Transfer case : Electronic transfer case shift
    • Transmission : 6-speed automatic
    • Transmission Type : Automatic
    • Transmission electronic control : Transmission electronic control
    • Transmission oil cooler : Transmission oil cooler
    • Two-Speed Transfer Case : Two-Speed Transfer Case
    • Valves per cylinder : 2
    • Ventilated brakes : Front and rear ventilated disc brakes
    • Handsfree : Bluetooth handsfree wireless device connectivity
    • Integrated navigation : Integrated navigation system with voice activation
    • Internet access : 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
    • Smart device integration : Apple CarPlay/Android Auto smart device wireless mirroring

    Dealer Notes

    Elevate your driving experience with this exceptional 2021 GMC Sierra 2500HD SLT. Boasting a powerful 6.6L V8 engine, 4-wheel drive, and a host of premium features, this truck is ready to tackle any challenge with confidence and style.

    - GOOD TIRES
    - GOOD BRAKES
    - SLT PREMIUM PACKAGE
    - X31 OFF-ROAD AND PROTECTION PACKAGE
    - GOOSENECK / 5TH WHEEL PACKAGE
    - SUNROOF, POWER
    - DRIVER ALERT PACKAGE II
    - ALTERNATORS, DUAL, 220-AMPS PRIMARY, 170-AMPS AUXILIARY
    - SNOW PLOW PREP/CAMPER PACKAGE
    - LPO, CONSOLE-MOUNTED SAFE
    - LPO, REAR UNDERSEAT STORAGE, COMPOSITE STORAGE BIN
    - BATTERY, AUXILIARY, 730 COLD-CRANKING AMPS/70 AMP-HR
    - TRAILER TIRE PRESSURE MONITOR SENSORS

    This Sierra 2500HD SLT is equipped with an impressive array of features that elevate your driving experience. The SLT Premium Package, X31 Off-Road and Protection Package, and Gooseneck/5th Wheel Package provide exceptional capability, convenience, and versatility. Enjoy the power and control of the 6.6L V8 engine, paired with a smooth-shifting 6-speed automatic transmission.

    The interior of this Sierra 2500HD SLT is designed for both comfort and functionality. Heated and ventilated front bucket seats, a heated steering wheel, and dual-zone automatic climate control ensure you and your passengers stay comfortable in any weather. The premium audio system, wireless charging, and 4G LTE Wi-Fi hotspot keep you connected and entertained on the go.

    Safety is a top priority in this Sierra 2500HD SLT, with features like Forward Collision Alert, Lane Departure Warning, Automatic Emergency Braking, and the Rear Vision Camera with Trailer View. The Trailer Tire Pressure Monitor Sensors and Integrated Trailer Brake Controller make towing a breeze.

    Whether you're tackling tough jobs, exploring off-road adventures, or simply enjoying the ride, this 2021 GMC Sierra 2500HD SLT is the perfect companion. Experience the power, capability, and premium features that set this truck apart. Visit our showroom today and let us demonstrate how this Sierra 2500HD SLT can elevate your driving experience.

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall3.8Out of 5

    • Transmission trash

      By Jason on Monday, April 07, 2025

      2.0
      Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk…

    • Infotainment system unreliable!

      By Brian C on Friday, June 27, 2025

      3.0
      The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another.…

    • Fantastic truck

      By Jjj on Sunday, November 07, 2021

      5.0
      This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!…
    Based on 13 consumer ratings for 2020–2026 models. | Privacy
    Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price. 1Dealer Discount applied to everyone. There will be a 3% credit card surcharge on all credit card transactions.
    Price
    $41,940
    • We're here to help: (248) 599-1093
      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. Dealer cannot be held liable for data that is listed incorrectly.