Used 2021 GMCSierra 2500 HD AT4
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Odometer
- 83,978 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT49PE71MF205223
- Stock Number
- 205223A
GMC
Sierra 2500 HD
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
Included Packages & Accessories
- LED Smoked Amber Roof Marker Lamps
- Bose Premium 7 Speaker Sound System
- Power-Retractable Black Assist Steps
- Wireless Charging
- IntelliBeam Automatic High Beam On/Off
- Following Distance Indicator
- Bed View Camera w/2 Trailer Camera Provisions
- 8" Multicolor Driver Information Center
- Lane Change Alert w/Side Blind Zone Alert
- Multicolor 15" Diagonal Head-Up Display
- Front License Plate Kit
- Safety Alert Seat
- Wheels: 20" Machined Aluminum
- Ultrasonic Front & Rear Park Assist
- Transmission: Heavy-Duty 6-Speed Automatic
- GVWR: 10,650 lbs
- Driver Alert Package I
- Rear Cross Traffic Alert
- Perimeter Lighting
- Power Sliding Rear Window w/Defogger
- Universal Home Remote
- Engine: 6.6L V8 w/Direct Injection & VVT
- Heavy-Duty 80 Amp Battery
- AT4 Preferred Package
- HD Surround Vision
- Radio: Premium GMC Infotainment Sys w/Navigation
- Power Sunroof
- Front Bucket Seats
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- Preferred Equipment Group 4SB
- Radio: AM/FM w/Premium GMC Infotainment System
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- HD Radio
- Wireless Phone Projection
- Floor-Mounted Center Console
- Compass Located In Instrument Cluster
- 4.2" Diagonal Color Display Driver Info Center
- Electric Rear-Window Defogger
- Power Door Locks
- Remote Vehicle Starter System
- Keyless Open & Start
- Front Prem Floor Liners w/Removable Carpet Insert
- Rear Prem Floor Liners w/Removable Carpet Insert
- OnStar & GMC Connected Services Capable
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access 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
- HD Rear Vision Camera
- Spray-On Pickup Box Bed Liner w/AT4 Logo
- 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
- Deep-Tinted Glass
- Painted Black Surround Grille
- Power Windows w/Driver Express Up/Down
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- LED Cargo Area Lighting
- Red Recovery Hooks
- Rear Wheelhouse Liners
- X31 Off-Road Package
- Off-Road Suspension
- Hill Descent Control
- Skid Plates
- Integrated Trailer Brake Controller
- ProGrade Trailering System
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- 2-Speed Active Transfer Case
- Inside Rearview Auto-Dimming Rear Camera Mirror
- Technology Package
- Automatic Emergency Braking
- Pickup Box
- Driver Alert Package II
- Forward Collision Alert
- Lane Departure Warning
- AT4 Premium Plus Package
- AT4 High Clearance Step
- 3.73 Rear Axle Ratio
- Tires: LT275/65R20 AT BW
- Spare LT275/70R18 AT BW Tire
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
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- 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
- Speaker type: Bose
- Speakers: 7
- 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
- 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
- Heads up display
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: UltraSonic 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
6-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120 Point Safety Inspection, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 18 Machined Aluminum Wheels, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 20 Machined Aluminum Wheels, 20 WHEELS, 22 WHEELS, 2nd Row Dual USB Charge-Only Ports, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6 Speakers, 6-Speaker Audio System Feature, 8 Multicolor Driver Information Center, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, AT4 High Clearance Step (LPO), AT4 Preferred Package, AT4 Premium Plus Package, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera w/2 Trailer Camera Provisions, BLUETOOTH / HANDSFREE, Bose Premium 7 Speaker Sound System, Brake assist, Bumpers: body-color, CLEAN CARFAX!, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, Driver Alert Package I, Driver Alert Package II, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Prem Floor Liners w/Removable Carpet Insert, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, HD Radio, HD Rear Vision Camera, HD Surround Vision, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Inside Rearview Auto-Dimming Rear Camera Mirror, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, Lane Departure Warning System, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, LOCAL TRADE IN!, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Multicolor 15 Diagonal Head-Up Display, NAVIGATION, Navigation System, NON SMOKER VEHICLE, Occupant sensing airbag, Off-Road Suspension, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Painted Black Surround Grille, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Perimeter Lighting, Pickup Box, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power passenger seat, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Defogger, Power steering, Power Sunroof, Power windows, Power Windows w/Driver Express Up/Down, Power-Retractable Black Assist Steps, Preferred Equipment Group 4SB, Premium audio system: Premium GMC Infotainment System, PROFESSIONALLY DETAILED FOR DELIVERY!, Radio: AM/FM w/Premium GMC Infotainment System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Red Recovery Hooks, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, SiriusXM w/360L, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Box Bed Liner w
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… - 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!…
Based on 13 consumer ratings for 2020–2025 models. | Privacy
- We're here to help: (855) 751-4960
