Recent Arrival! Cruise Control, Power Windows, Power Locks, Steering Wheels Radio Controls, Aluminum Wheels, 10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather. Ebony Twilight Metallic 2021 GMC Sierra 2500HD Denali 4D Crew Cab Denali 4WD 10-Speed Automatic
Clean CARFAX. Duramax 6.6L V8 Turbodiesel
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Please be aware that the price listed for the vehicle does not include tax, title, registration, documentation fee, or any other applicable fees. However, it does include a trade-in assistance bonus of $1,000 for qualifying retailable trades with less than 10 years of use from the original in-service date. To be eligible for the advertised promotional price, you must pay in full and take delivery of the vehicle from dealer stock on the same day. For the most up-to-date information and Imperial discounts, please call or email our phone and internet team. Please note that the price cannot be combined with any other discounts or promotions and is subject to change based on the market value at any time without notice. To receive the internet special discount, please mention the promo code INTERNET1. While we strive to provide reliable information, please note that the dealer is not responsible for any misprints involving the price and/or description of any vehicle offered for sale. It is your sole responsibility to inspect and verify such information before making a purchase. We want to be transparent in our dealings, and to that end, you can call 800-526-AUTO (2886) to receive your personalized "Buy-For-Price." Lastly, please note that we do not sell to wholesalers or dealers, and some of our pre-owned vehicles may be subject to unrepaired safety recalls. To check if any vehicle has unrepaired recalls, you can look up the vehicle's VIN at https://www.nhtsa.gov/recalls.
Used 2021 GMCSierra 2500 HD Denali Truck Crew Cab
- Exterior Color
- Ebony Twilight
- Interior Color
- Dark Walnut/Dark Ash Grey
- Odometer
- 48,568 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT19REYXMF108710
- Stock Number
- CD15489
GMC
Sierra 2500 HD
Highlighted Features
- 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
Included Packages & Accessories
- 3.73 Rear Axle Ratio
- 3.42 Axle Ratio
- Wheels: 20" Multi-Dimensional Polished Aluminum
- Forge Perforated Leather-Appointed Front Seat Trim
- Wired Auxiliary Trailer Camera (LPO)
- Pickup Box
- Gooseneck/5th Wheel Prep Package
- Engine Block Heater
- Winter Grille Cover
- Exhaust Brake
- Heavy-Duty 80 Amp Battery
- 2 USB Ports (1st Row)
- Lane Departure Warning System
- 4-Wheel Disc Brakes
- Apple CarPlay/Android Auto
- Premium audio system: Premium GMC Infotainment System
- AM/FM radio: SiriusXM with 360L
- Auto High-beam Headlights
- Exterior Parking Camera Rear
- Compass
- 7 Speakers
- Auto-dimming Rear-View mirror
- Ventilated front seats
- Variably intermittent wipers
- Turn signal indicator mirrors
- Trip computer
- Traction control
- Tilt steering wheel
- Telescoping steering wheel
- Steering wheel mounted audio controls
- Split folding rear seat
- Speed-sensing steering
- Speed control
- Security system
- Remote keyless entry
- Rear window defroster
- Rear step bumper
- Rear seat center armrest
- Rear reading lights
- Power windows
- Power steering
- Power passenger seat
- Power driver seat
- Power door mirrors
- Passenger vanity mirror
- Passenger door bin
- Panic alarm
- Overhead console
- Overhead airbag
- Outside temperature display
- Occupant sensing airbag
- Memory seat
- Low tire pressure warning
- Illuminated entry
- Heated steering wheel
- Heated rear seats
- Heated front seats
- Heated door mirrors
- Genuine wood door panel insert
- Genuine wood console insert
- Garage door transmitter
- Fully automatic headlights
- Front wheel independent suspension
- Front reading lights
- Front fog lights
- Front dual zone A/C
- Front anti-roll bar
- Dual front side impact airbags
- Dual front impact airbags
- Driver vanity mirror
- Driver door bin
- Delay-off headlights
- Bumpers: body-color
- Brake assist
- Automatic temperature control
- Auto-dimming door mirrors
- Alloy wheels
- ABS brakes
- Voltmeter
- Tachometer
- Navigation System
- Front Center Armrest
- Electronic Stability Control
- Air Conditioning
- Preferred Equipment Group 5SA
- Wheels: 20" High Gloss Black Painted Aluminum
- 10-Way Power Driver Seat Adjuster w/Lumbar
- Denali Ultimate Package
- Denali Black Diamond Edition
- Driver Alert Package I
- Driver Alert Package II
- Technology Package
- Radio: Premium GMC Infotainment Sys w/Navigation
- Electric Rear-Window Defogger
- Front Prem Floor Liners w/Removable Carpet Insert
- OnStar & GMC Connected Services Capable
- 120-Volt Instrument Panel Power Outlet
- Bed View Camera w/2 Trailer Camera Provisions
- Power Sunroof
- Spray-On Pickup Box Bed Liner w/Denali Logo
- 6" Rectangular Chromed Tubular Assist Steps
- Power Retractable Assist Steps
- Deep-Tinted Glass
- LED Smoked Amber Roof Marker Lamps
- LED Cargo Area Lighting
- MultiPro Audio System by Kicker
- Snow Plow Prep/Camper Package
- Integrated Trailer Brake Controller
- Trailer Tire Pressure Monitor Sensors
- 220 Amps Alternator
- Skid Plates
- Off-Road Suspension
- 2-Speed Active Transfer Case
- Inside Rearview Auto-Dimming Rear Camera Mirror
- SiriusXM w/360L
- Driver Memory
- Power Sliding Rear Window w/Defogger
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- GMC Connected Access Capable
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- Keyless Open & Start
- Power Door Locks
- Power Windows w/Driver Express Up/Down
- Rear Wheelhouse Liners
- Rear Prem Floor Liners w/Removable Carpet Insert
- Remote Vehicle Starter System
- Compass Located In Instrument Cluster
- Floor-Mounted Center Console
- Signature Denali Grille
- Safety Alert Seat
- Hill Descent Control
- Wireless Charging
- Heated Driver & Front Outboard Passenger Seats
- Heated 2nd Row Outboard Seats
- 120-Volt Bed Mounted Power Outlet
- 12-Volt Rear Auxiliary Power Outlet
- Heated & Ventilated Front Bucket Seats
- 2 USB Ports
- Electrical Lock Control Steering Column
- Manual Tilt-Wheel/Telescoping Steering Column
- ProGrade Trailering System
- Hitch Guidance w/Hitch View
- IntelliBeam Automatic High Beam On/Off
- In-Vehicle Trailering System App
- HD Radio
- Ultrasonic Front & Rear Park Assist
- Following Distance Indicator
- Forward Collision Alert
- Rear Cross Traffic Alert
- Universal Home Remote
- Automatic Emergency Braking
- Steering Wheel Audio Controls
- Lane Change Alert w/Side Blind Zone Alert
- Bose Premium 7 Speaker Sound System
- 2nd Row Dual USB Charge-Only Ports
- Unauthorized Entry Theft-Deterrent System
- Multicolor 15" Diagonal Head-Up Display
- HD Surround Vision
- Chrome Recovery Hooks
- Polished Exhaust Tip
- 4G LTE Wi-Fi Hotspot Capable
- Wireless Phone Projection
- X31 Off-Road Package
- Front Bucket Seats
Included Packages & Options
- Denali Ultimate Package$1,770
- Technology Package
- Power Sunroof
- Technology Package$1,475
- Inside Rearview Auto-Dimming Rear Camera Mirror
- Multicolor 15" Diagonal Head-Up Display
- Snow Plow Prep/Camper Package$300
- 220 Amps Alternator
- Skid Plates
- Front Prem Floor Liners w/Removable Carpet Insert$130
- Rear Prem Floor Liners w/Removable Carpet Insert
Included Options
- Gooseneck/5th Wheel Prep Package$545
- Engine Block Heater$100
Standard Specifications
- 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
Dealer Notes
KBB.com Consumer Reviews

Overall3.8Out of 5
- 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
* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
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