Built Chevy-tough and engineered to pull with confidence, this 2025 GMC Sierra 2500HD AT4 Duramax delivers serious towing power with off-road attitude. Well maintained and ready to work, itâs the kind of heavy-duty truck buyers trust when the job matters.
Highlights:
One Owner
Clean Carfax
Local Trade
Backup Camera
Bluetooth
Remote Keyless Entry
Apple CarPlay & Android Auto
4WD
6.6L Duramax Diesel
Priced to sell quickly, this Sierra 2500HD AT4 delivers real diesel power, off-road confidence, and work-ready capability at a value that wonât last. And at Southern Pines Chevy, we make buying easy with honest pricing, zero pressure, and a team that treats you like family from start to finish.
All Pricing is plus tax, tags, $798 Doc, and fees.
Used 2025 GMCSierra 2500 HD AT4
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 25,739 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UPEY8SF122585
- Stock Number
- C23846B
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Power moonroof
- 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
- 20" High Gloss Black 8 Spokes Aluminum Wheels
- Inside Rearview Auo-Dimming Rear Camera Mirror
- 220-Amp Alternator
- LT275/65R20 AT BW Tires
- LT275/70R18 AT BW Spare Tire
- Technology Package
- Multicolor 15" Diagonal Head-Up Display
- Allison 10-Speed Automatic Transmission
- 11,750 lbs GVWR
- High Idle Switch
- Duramax 6.6L Turbo-Diesel V8 Engine
- Capped Fuel Fill
- Dual Heavy-Duty 70 Amp Battery
- Winter Grille Cover
- Exhaust Brake
- Engine Block Heater
- 11,350 lbs GVWR
- 3.42 Axle Ratio
- Gooseneck/5th Wheel Prep Package
- Universal Home Remote
- AM/FM Stereo with Premium GMC Infotainment System
- Power Sunroof
- Front Bucket Seats
- 10-Way Power Driver Seat Adjuster with Lumbar
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Driver Memory
- Preferred Equipment Group 4SB
- Sierra HD Pro Safety
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam Automatic High Beam on/Off
- Lane Departure Warning
- Buckle to Drive
- Automatic Emergency Braking
- Safety Alert Seat
- Rear Cross Traffic Alert
- Trailer Side Blind Zone Alert
- Wireless Phone Projection
- Bose Premium 7-Speaker Sound System
- SiriusXM with 360L Trial Subscription
- Floor-Mounted Center Console
- Electric Rear-Window Defogger
- Push Button Start
- Remote Vehicle Starter System
- Keyless Open and Start
- Front Premium Floor Liners with Removable Carpet Insert
- Rear Premium Floor Liners with Removable Carpet Insert
- OnStar Services Capable
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 2 Charge-Only Rear USB Ports
- 2 USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- Spray-on Pickup Bedliner with GMC Logo
- HD Surround Vision
- Bed View Camera with Two Trailer Camera Provisions
- Trailer Cam Provisions and Trailer Viewing Software
- Heated Driver and Front Outboard Passenger Seats
- Ventilated Driver and Front Passenger Seats
- Heated 2nd Row Outboard Seats
- Deep-Tinted Glass
- Gloss Black Header Grille and Grille Insert Bars
- Steering Wheel Audio Controls
- LED Cargo Area Lighting
- Manual Tilt-Wheel/Telescoping Steering Column
- Unauthorized Entry Theft-Deterrent System
- Power Front Passenger Windows with Express Up/Down
- Wireless Charging
- Ultrasonic Front and Rear Park Assist
- Rear Wheelhouse Liners
- Front Rain-Sensing Wipers
- X31 Off-Road Package
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- ProGrade Trailering System
- Hitch Guidance with Hitch View
- in-Vehicle Trailering System App
- 6.6L V8 with Direct Injection and Variable Valve Timing Engine
- Heavy-Duty 80 Amp Battery
- 10,850 lbs GVWR
- 2-Speed Active Transfer Case
- LED Smoked Amber Roof Marker Lamps
- AT4 Premium Plus Package
- AT4 Preferred Package
- Power Sliding Rear Window with Defogger
- Off-Road High Clearance Step
- Max Trailering Package
- Power-Retractable Black Assist Steps
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- 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 and smart device (subscription required)
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision w/Hitch View yes
- 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
- Primary LCD size: 13.4"
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- 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: 470hp @ 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: 975 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
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,733kg (8,229lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine horsepower: 470hp @ 2,800RPM
- Engine torque: 975 lb.-ft. @ 1,600RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,027mm (79.8")
- Exterior length: 6,369mm (250.8")
- 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")
- GVWR: 5,148kg (11,350lbs)
- Payload: 1,398kg (3,083lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Towing capacity: 8,391kg (18,500lbs)
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Trailer Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- 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
- Rain sensing wipers
- 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
- Front pedestrian detection: prevention
- 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
- 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!