2021 GMC Sierra 2500HD Denali

$63,500Details
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    The overview

    Exterior Color
    Onyx Black
    Interior Color
    Black
    Odometer
    39,568 miles
    Body/Seating
    Truck/5 seats
    Transmission
    6-Speed Automatic
    Drivetrain
    4WD
    Engine
    6.6L V8
    VIN
    1GT49RE75MF273004
    Stock Number
    599251
    • Show Me the CARFAX 1-Owner Badge

    The highlights

    • Navigation system
    • Lane departure
    • Leather upholstery
    • Automatic temperature control
    • Premium audio system
    • 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

    A closer look at what’s included

    • Denali Ultimate Package
      • Technology Package
      • Power Sunroof
    • Technology Package
      • Inside Rearview Auto-Dimming Rear Camera Mirror
      • Multicolor 15" Diagonal Head-Up Display
    • Preferred Equipment Group 5SA
      • Driver Alert Package I
      • Driver Alert Package II
      • Safety Alert Seat
      • Radio: Premium GMC Infotainment Sys w/Navigation
      • Wireless Phone Projection
      • Floor-Mounted Center Console
      • Compass Located In Instrument Cluster
      • Electric Rear-Window Defogger
      • Power Door Locks
      • Remote Vehicle Starter System
      • Keyless Open & Start
      • OnStar & GMC Connected Services Capable
      • 12-Volt Rear Auxiliary Power Outlet
      • 120-Volt Instrument Panel Power Outlet
      • 120-Volt Bed Mounted Power Outlet
      • 2 USB Ports
      • 2nd Row Dual USB Charge-Only Ports
      • Bed View Camera w/2 Trailer Camera Provisions
      • HD Surround Vision
      • Spray-On Pickup Box Bed Liner w/Denali Logo
      • 6" Rectangular Chromed Tubular Assist Steps
      • Heated Driver & Front Outboard Passenger Seats
      • Heated & Ventilated Front Bucket Seats
      • Heated 2nd Row Outboard Seats
      • Steering Wheel Audio Controls
      • Manual Tilt-Wheel/Telescoping Steering Column
      • Electrical Lock Control Steering Column
      • Unauthorized Entry Theft-Deterrent System
      • Universal Home Remote
      • Deep-Tinted Glass
      • Signature Denali Grille
      • Power Sliding Rear Window w/Defogger
      • Power Windows w/Driver Express Up/Down
      • Power Front Passenger Windows w/Express Up/Down
      • Power Rear Windows w/Express Down
      • Wireless Charging
      • LED Smoked Amber Roof Marker Lamps
      • LED Cargo Area Lighting
      • Rear Wheelhouse Liners
      • Chrome Recovery Hooks
      • Polished Exhaust Tip
      • X31 Off-Road Package
      • Integrated Trailer Brake Controller
      • 2-Speed Active Transfer Case
    • Driver Alert Package II
      • Forward Collision Alert
      • Automatic Emergency Braking
      • IntelliBeam Automatic High Beam On/Off
      • Following Distance Indicator
    • Radio: Premium GMC Infotainment Sys w/Navigation
      • Bose Premium 7 Speaker Sound System
      • SiriusXM w/360L
      • HD Radio
    • OnStar & GMC Connected Services Capable
      • 4G LTE Wi-Fi Hotspot Capable
      • GMC Connected Access Capable
    • Front Bucket Seats
      • 10-Way Power Driver Seat Adjuster w/Lumbar
      • 10-Way Power Passenger Seat Adjuster w/Lumbar
      • Driver Memory
    • Driver Alert Package I
      • Ultrasonic Front & Rear Park Assist
      • Lane Change Alert w/Side Blind Zone Alert
      • Rear Cross Traffic Alert
    • X31 Off-Road Package
      • Off-Road Suspension
      • Hill Descent Control
    Included Options
    • Navigation System
    • Gooseneck/5th Wheel Prep Package
    • 7 Speakers
    • AM/FM radio: SiriusXM with 360L
    • Premium audio system: Premium GMC Infotainment System
    • Air Conditioning
    • Automatic temperature control
    • Front dual zone A/C
    • Rear window defroster
    • Memory seat
    • Power driver seat
    • Power steering
    • Power windows
    • Remote keyless entry
    • Steering wheel mounted audio controls
    • Speed-sensing steering
    • Traction control
    • 4-Wheel Disc Brakes
    • ABS brakes
    • Dual front impact airbags
    • Dual front side impact airbags
    • Front anti-roll bar
    • Front wheel independent suspension
    • Low tire pressure warning
    • Occupant sensing airbag
    • Overhead airbag
    • Pickup Box
    • Brake assist
    • Electronic Stability Control
    • Lane Departure Warning System
    • Exterior Parking Camera Rear
    • Auto High-beam Headlights
    • Delay-off headlights
    • Front fog lights
    • Fully automatic headlights
    • Panic alarm
    • Security system
    • Speed control
    • Engine Block Heater
    • Heavy-Duty 80 Amp Battery
    • Auto-dimming door mirrors
    • Bumpers: body-color
    • Heated door mirrors
    • Power door mirrors
    • Rear step bumper
    • Turn signal indicator mirrors
    • 2 USB Ports (1st Row)
    • Apple CarPlay/Android Auto
    • Auto-dimming Rear-View mirror
    • Compass
    • Driver door bin
    • Driver vanity mirror
    • Front reading lights
    • Garage door transmitter
    • Genuine wood console insert
    • Genuine wood door panel insert
    • Heated steering wheel
    • Illuminated entry
    • Outside temperature display
    • Overhead console
    • Passenger vanity mirror
    • Rear reading lights
    • Rear seat center armrest
    • Tachometer
    • Telescoping steering wheel
    • Tilt steering wheel
    • Trip computer
    • Voltmeter
    • Forge Perforated Leather-Appointed Front Seat Trim
    • Front Center Armrest
    • Heated front seats
    • Heated rear seats
    • Power passenger seat
    • Split folding rear seat
    • Ventilated front seats
    • Passenger door bin
    • Hitch Guidance w/Hitch View
    • In-Vehicle Trailering System App
    • Trailer Tire Pressure Monitor Sensors
    • Alloy wheels
    • Wheels: 20" Multi-Dimensional Polished Aluminum
    • Variably intermittent wipers
    • 3.73 Rear Axle Ratio
    • 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: 275/65SR20.0E
    • 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
    • Premium audio system: Premium GMC Infotainment System
    • Primary LCD size: 8.0"
    • Smart device integration: Android Auto/Apple CarPlay
    • Speaker type: Bose
    • Speakers: 7
    • Steering wheel mounted audio controls
    • Wireless phone connectivity: Bluetooth
    • Front center armrest
    • Front seats: bucket
    • Genuine wood console insert
    • Genuine wood door panel insert
    • 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
    • Cylinder configuration: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel tank capacity: 36.0gal.
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Rear locking differential
    • Standard fuel economy fuel type: gasoline
    • Variable valve control
    • Ground clearance (min): 257mm (10.1")
    • Auto-dimming door mirrors
    • Bedliner
    • Bumpers: body-color
    • Door mirrors: chrome
    • Heated door mirrors
    • Left rear passenger door: conventional
    • Power door mirrors
    • Rear cargo: tailgate
    • Rear step bumper
    • Right rear passenger: conventional
    • Skid plates
    • Tailpipe finisher: polished
    • Trailer hitch receiver
    • Trailer sway control
    • Turn signal indicator mirrors
    • Exterior body width: 2,079mm (81.8")
    • Exterior height: 2,023mm (79.7")
    • Exterior length: 6,352mm (250.1")
    • 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")
    • Rear headroom: 1,013mm (39.9")
    • Rear hiproom: 1,530mm (60.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,659mm (65.3")
    • Turning radius: 8.0m (26.3')
    • Wheelbase: 4,037mm (158.9")
    • Appearance: analog
    • Auto high-beam headlights
    • Blind spot: Lane Change Alert with Side Blind Zone Alert warning
    • Compass
    • Delay-off headlights
    • Exterior parking camera cargo
    • Exterior parking camera front
    • Exterior parking camera left
    • Exterior parking camera rear
    • Exterior parking camera right
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Lane departure: Lane Departure Warning warning
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: Front and Rear Park Assist 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
    • Forward collision: Forward Collision Alert with Automatic Braking mitigation
    • Ignition disable
    • Occupant sensing airbag
    • Overhead airbag
    • Panic alarm
    • Perimeter/approach lights
    • Rear collision: Rear Cross-Traffic Alert warning
    • Security system
    • Traction control
    The 2021 GMC Sierra 2500HD Denali heavy-duty, designed for power and luxury. In a Onyx Black finish, this 4WD Crew Cab combines a commanding presence with a full suite of premium features, including the Denali Ultimate Package.

    Unrivaled Performance & Heavy-Duty Capability

    Potent V8 Power: Built to handle the toughest tasks, this Sierra HD is powered by the durable 6.6L V8 Gasoline Engine mated to a heavy-duty 6-Speed Automatic Transmission.

    Confidence in Traction: Features a 2-Speed Autotrac Transfer Case and Auto-Locking Rear Differential for superior control, supported by StabiliTrak with Trailer Sway Control & Hill Start Assist.

    Off-Road Ready: Enhanced capability with Off-Road Suspension and All-Terrain Tires

    Professional Grade Trailering Technology

    ProGrade Trailering System : Features an Integrated Trailer Brake Controller, Hitch Guidance with Hitch View, and the In-Vehicle Trailering App for simplified setup and monitoring.

    Fifth Wheel Ready: Includes the Gooseneck/5th Wheel Prep Package and a Trailer Tire Pressure Monitor.

    Ultimate Utility: The versatile GMC MultiPro Tailgate and a factory-installed Spray-On Bedliner with Denali Logo maximize cargo functionality.

    Denali Luxury & Signature Design

    Premium Cabin: The interior features Forge Perforated Leather-Appointed Front Seat Trim and a luxurious atmosphere accented by a Heated & Leather Wrapped Steering Wheel.

    Climate & Comfort: Ensures year-round comfort with Ventilated Front Seats, Heated Front and Rear Outboard Seats, and 10-Way Power Seat Adjusters with Driver Seat & Mirror Memory.


    Power Features: Includes a Power Sunroof and a Power Rear Sliding Window for open-air driving.

    Advanced Technology & Safety (Driver Alert Package I & II)

    Immersive Displays: Critical driving data is projected onto the Multicolor 15" Diagonal Head-Up Display, complemented by the high-tech Rear Camera Mirror.

    Infotainment: Features the GMC Premium Infotainment System with Navigation on an 8" Diagonal HD Touchscreen , complete with Bose Premium Sound System, Wireless Charging, and Wireless Phone Projection (Apple CarPlay/Android Auto Capable ).

    Comprehensive Safety Suite: Includes the Driver Alert Package II features: Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning , and the vibrating Safety Alert Seat.

    Parking & Maneuvering: Enhanced with HD Surround Vision, Front & Rear Park Assist, Lane Change Alert with Side Blind Zone Alert , and Rear Cross Traffic Alert.

    Seamless Access: Keyless Open & Start and Remote Start provide convenient entry and preparation.

    Peace of mind

    vehicle history report

    Vehicle history report

    • Title information
    • Odometer readings
    • Accident data (if applicable)
    • Service history
    • Vehicle usage
    • Recall information (if applicable)
    • Warranty status
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    KBB.com Consumer Reviews

    Kelley Blue Book Logo3.8out of 5 overall
    • 2.0

      Transmission trash

      by Jason on Monday, April 07, 2025

      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…
    • 5.0

      Fantastic truck

      by Jjj on Sunday, November 07, 2021

      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!…
    • 3.0

      Don't judge a truck by the appearance

      by jmil on Wednesday, May 11, 2022

      Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).…
    Based on 13 consumer ratings for 2020–2025 models.Privacy