2021 GMC Sierra 2500HD AT4 Onyx Black 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.
Recent Arrival! Odometer is 42887 miles below market average!
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2021 GMC Sierra 2500HD AT4
- Used
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Schumacher Subaru
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The overview
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 31,619 miles
- Body/Seating
- Truck/5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT49PEY1MF249926
- Stock Number
- G026264TU
- Fuel Type
- Diesel
The highlights
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Ventilated front seats
- Perimeter/approach lights
- Remote keyless entry
The full 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
- Heated steering wheel
- Illuminated entry
- Memory seat
- 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 wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 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
- Steering wheel mounted audio controls
- 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
- 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
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- 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
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- 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
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Notes from the dealer
Track your progress
Peace of mind
Vehicle history report
- Title information
- Odometer readings
- Accident data (if applicable)
- Service history
- Vehicle usage
- Recall information (if applicable)
- Warranty status
Optional add-on protection
- GAP Protection
- Lifetime Powertrain
- Tires and Wheels
- Paint Protection
A name you can trust
Schumacher Subaru is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
More about usKBB.com Consumer Reviews
3.8out 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 - 3.0
Infotainment system unreliable!
by Brian C on Friday, June 27, 2025
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. - 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!
MSRP refers to the Manufacturer’s Suggested Retail Price of the vehicle. Prices do not include tax, tag, title, registration, dealer-installed accessories, or dealer-provided benefits. Additional fees include a $995 pre-delivery service fee, a $39 Private Tag Agency Fee, and a $399 Electronic Registration Filing Fee (this charge reflects costs and profit to the dealer for services such as inspecting, cleaning, and adjusting new and used vehicles, as well as preparing documentation related to the sale). Please consult your dealer for the actual price and complete details. Vehicles shown may include optional equipment at an additional cost. All prices, specifications, and availability are subject to change without notice.
Online pricing may differ from dealer pricing due to supply-chain constraints. All pricing presented is non-binding and does not constitute an offer. For the most accurate and current pricing, please contact your dealer directly.
Pricing includes all applicable manufacturer incentives and may not be combined with other exclusive offers. Advertised prices apply only to in-stock units and include all eligible dealer and manufacturer discounts and incentives. Certain offers and incentives may require financing through the manufacturer’s captive lender and are subject to approved credit. Although every effort is made to ensure accuracy, the dealership is not responsible for errors or omissions on this site. A copy of the advertisement must be presented at the time of purchase to receive any special or advertised pricing. Prior sales are excluded. Due to ongoing supply-chain challenges and limited inventory, vehicles may be subject to additional market adjustments based on production schedules, availability, and market conditions.
Payload and towing ratings are maximum estimates. Additional options, equipment, passengers, and cargo may reduce actual payload or towing capacity. Please see your dealer for complete details.
“In transit” indicates that vehicles have been manufactured but have not yet arrived at the dealership. Images shown may not represent the exact vehicles in transit. For accurate pricing, payment information, and complete details, please contact your dealer.
Online pricing may differ from dealer pricing due to supply-chain constraints. All pricing presented is non-binding and does not constitute an offer. For the most accurate and current pricing, please contact your dealer directly.
Pricing includes all applicable manufacturer incentives and may not be combined with other exclusive offers. Advertised prices apply only to in-stock units and include all eligible dealer and manufacturer discounts and incentives. Certain offers and incentives may require financing through the manufacturer’s captive lender and are subject to approved credit. Although every effort is made to ensure accuracy, the dealership is not responsible for errors or omissions on this site. A copy of the advertisement must be presented at the time of purchase to receive any special or advertised pricing. Prior sales are excluded. Due to ongoing supply-chain challenges and limited inventory, vehicles may be subject to additional market adjustments based on production schedules, availability, and market conditions.
Payload and towing ratings are maximum estimates. Additional options, equipment, passengers, and cargo may reduce actual payload or towing capacity. Please see your dealer for complete details.
“In transit” indicates that vehicles have been manufactured but have not yet arrived at the dealership. Images shown may not represent the exact vehicles in transit. For accurate pricing, payment information, and complete details, please contact your dealer.
- Displayed MPG is based on applicable EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors
- See dealer for details. Tax, tag, title, license and $995 dealer administration fee (unless itemized above) are extra.
