Used 2021 GMCSierra 2500HD AT4 4WD Crew Cab
- Exterior Color
- Ebony Twilight Metallic
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 98,895 miles
- Body/Seating
- Pickup/5 seats
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- 8
- VIN
- 1GT49PEY6MF286230
- Stock Number
- S0055A
Highlighted Features
- 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
Included Packages & Accessories
Detailed 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 tires: 275/65SR20.0
- Front wheel independent suspension
- Power steering
- Rear tires: 275/65SR20.0
- 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
- 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
- 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: 445hp @ 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: gasoline
- Torque: 910 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
- 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
- Compression ratio: 16.00 to 1
- Curb weight: 3,515kg (7,749lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine horsepower: 445hp @ 2,800RPM
- Engine torque: 910 lb.-ft. @ 1,600RPM
- 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")
- Payload: 1,616kg (3,563lbs)
- 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
- Exterior parking camera cargo
- 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
Dealer Notes
EXCELLENT VALUE
This Sierra 2500HD is priced $2,700 below Kelley Blue Book.
KEY FEATURES INCLUDE
Leather Seats, Heated Driver Seat, Cooled Driver Seat
OPTION PACKAGES
(445 hp [332 kW] @ 2800 rpm, 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), with high gloss Black accents, includes (Z6A) Gooseneck / 5th Wheel Prep Package. (Includes (UVN) Bed View Camera. EBONY TWILIGHT METALLIC, includes multi-touch display, AM/FM stereo, Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto® and Apple CarPlay® capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (STD) (Includes (PZ8) Hitch Guidance with hitch view.), ALLISON 10-SPEED AUTOMATIC. GMC AT4 with Ebony Twilight Metallic exterior and Jet Black with Kalahari Accents interior features a 8 Cylinder Engine with 401 HP at 5200 RPM*.
EXCELLENT SAFETY FOR YOUR FAMILY
Electronic Stability Control, 4-Wheel ABS, 4-Wheel Disc Brakes
BUY FROM AN AWARD WINNING DEALER
Hendrick INEOS Grenadier is proud to bring this exciting 4x4 Outdoor Activity Vehicle to the adventurous people of the Lowcountry and beyond. While the INEOS brand is all about providing an exceptional 4x4 vehicle that provides a comfortable and yet luxurious environment to explore any type of terrain, Hendrick INEOS Grenadier strives to make your purchase and ownership experience a exciting and comfortable as well. We look forward to providing INEOS customers an exceptional service experience.
Pricing analysis performed on 8/30/2025. Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.
This Dealership checks the vehicle recall status prior to making any pre-owned vehicle available for sale. Manufacturers and/or NHTSA may announce additional recalls at any time. To inquire about the recall status of this vehicle, visit: https://vinrcl.safercar.gov/vin/
KBB.com Consumer Reviews

- 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).…
Hendrick Vehicle Disclaimer
$225.00 Closing Fee is not included in advertised price. The Closing Fee is a charge that is permitted but not required by law.
All prices exclude all taxes, tag, title, registration fees and government fees. Out of state buyers are responsible for all taxes and government fees and title/registration fees in the state where the vehicle will be registered. All prices include all manufacturer to dealer incentives, which the dealer retains unless otherwise specifically provided. Dealer not responsible for errors and omissions; all offers subject to change without notice; please confirm listings with dealer.
All vehicles may not be physically located at this dealership but may be available for delivery through this location. Transportation charges may apply. Please contact the dealership for more specific information. All vehicles are subject to prior sale.
Monthly Disclaimers:
Well-qualified customers who purchase a new, used, or certified pre-owned vehicle, 4 model years or newer with less than 60K miles between August 1 2025, and September 30, 2025, and finance through a participating dealer and lender have the option to defer monthly payments for 120 days from contract date. Finance charges begin to accrue on the date you sign the Retail Installment Sale Contract at the Annual Percentage Rate (APR) disclosed in the contract. May not be combined with other preferred lender financing offers. 75 months maximum term limit. Equal monthly payments only. Not available to Pennsylvania residents; see your dealer for details. Must take retail delivery by September 30, 2025. See dealer for complete down payment options and details.
2025 INEOS Grenadier Station Wagon: Lease for $799/month for 36 months. $6,683 due at signing. $0 security deposit. Excludes tax, title, and fees. 7,500 miles/year; $0.50/mile over. $395 disposition fee at lease end. Based on $76,775 MSRP, $69,775 net cap cost incl. $2,000 dealer contribution (price may vary). Valid August 1–September 2nd, 2025, on stock vehicles. Subject to credit approval. Not all customers qualify. Restrictions apply. Vehicle shown for illustration only.
3.9% APR for 60 months on a new 2025 INEOS Grenadier. $18.37/month per $1,000 financed. Valid August 1–31, 2025, on delivery from dealer stock. Subject to credit approval through Santander Consumer USA. Not all customers will qualify. Restrictions apply. May not combine with other offers. See participating dealer for details.
To qualify for the INEOS Limited-Time Special, you must: (1) be a current Costco Gold Star, Business, or Executive level Member; (2) register with Costco Auto Program online or through its call center by August 31, 2025, to receive a certificate with your unique promotion code; (3) present your certificate and unique promotion code to any authorized INEOS Automotive Americas LLC dealer at time of visit; (4) take delivery between August 1, 2025, and August 31, 2025, of a new 2025 INEOS Grenadier Station Wagon to receive a $2000 Costco member only incentive, or take delivery between August 1, 2025 and August 31, 2025 of a 2025 INEOS Grenadier Quartermaster, to receive a $1,750 Costco member only incentive. Retired demonstrator and service loaner vehicles of these eligible models qualify for the Costco member-only incentive. The incentive will be applied at time of purchase or lease and is compatible with other eligible INEOS incentives for which the Costco member qualifies under the individual program rules. Program available to U.S. residents only for delivery within the U.S. at an authorized INEOS Automotive Americas LLC retailer only, not available in Puerto Rico, Canada or Mexico. Only one (1) promotion code allowed per vehicle. Limit two (2) promotion codes per membership. Incentive is subject to change due to vehicle inventory availability. Costco and its affiliates do not sell automobiles or negotiate individual transactions. Costco and its affiliates do not sell automobiles or negotiate individual transactions. All vehicles arranged for sale are subject to availability and a price prearranged with the participating franchised dealer. A participation fee is paid by the dealers participating in Costco Auto Program. Certain vehicles may be excluded from the program. Actual savings may vary based on vehicle purchased, dealer and location.