Onyx Black 2025 GMC Sierra 2500HD SLE 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Backup/Rearview Camera, Remote Start, Bluetooth, Fresh Oil Change, Push Button Start, 10-Speed Automatic, 4WD, Black Cloth.
Recent Arrival!
New 2025 GMCSierra 2500HD SLE
- Exterior Color
- Onyx Black
- Interior Color
- Black
- Body/Seating
- Truck/6 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT4UMEY8SF309520
- Stock Number
- S5268
Highlighted Features
- Lane departure
- Automatic temperature control
- Emergency communication 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
- Auto high-beam headlights
- Auto-dimming rearview mirror
Included Packages & Accessories
- Preferred Equipment Group 3SA
- 3.73 Rear Axle Ratio
- 3.42 Axle Ratio
- 17" Machined Aluminum Wheels
- Wheels: 20" Bright Face w/Dark Painted Pockets
- Front 40/20/40 Split-Bench Seats
- Cloth Seat Trim
- 10-Way Power Driver Seat Adjuster w/Lumbar
- SLE Convenience Package
- SLE Heated Package
- Remote Start Package
- Sierra HD Pro Safety Plus Package
- Radio: AM/FM w/Premium GMC Infotainment System
- Electric Rear-Window Defogger
- 120-Volt Instrument Panel Power Outlet
- 2 Charge-Only Rear USB Ports
- Spray-On Pickup Bedliner w/GMC Logo
- 6" Rectangular Chromed Tubular Assist Steps
- Deep-Tinted Glass
- LED Smoked Amber Roof Marker Lamps
- LED Cargo Area Lighting
- Power-Adjustable Black Outside Mirrors
- Pickup Box
- Gooseneck/5th Wheel Prep Package
- Max Trailering Package
- 220-Amp Alternator
- Engine Block Heater
- Suspension Package
- 2-Speed Active Transfer Case
- SiriusXM w/360L Trial Subscription
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Keyless Open & Start
- Winter Grille Cover
- Push Button Start
- Remote Vehicle Starter System
- A/C w/Dual-Zone Automatic Climate Control
- Auto-Dimming Inside Rear-View Mirror
- Chrome Surround Grille w/Chrome Insert Bars
- Exhaust Brake
- Heated Driver & Front Outboard Passenger Seats
- 120-Volt Bed Mounted Power Outlet
- Heated Steering Wheel
- Heavy-Duty 80 Amp Battery
- Manual Tilt-Wheel/Telescoping Steering Column
- 2-Speed Electronic Shift Transfer Case
- Sierra HD Pro Safety
- Perimeter Lighting
- Wireless Phone Projection
- LED Fog Lamps
- Buckle to Drive
- IntelliBeam Automatic High Beam On/Off
- Trailer Cam Provisions & Trailer Viewing Software
- 2 Charge/Data USB Ports
- Ultrasonic Front & Rear Park Assist
- OnStar Services Capable
- Following Distance Indicator
- In-Vehicle Trailering System App
- Forward Collision Alert
- Rear Cross Traffic Alert
- Lane Departure Warning System
- Automatic Emergency Braking
- Steering Wheel Audio Controls
- Front Pedestrian Braking
- Trailer Side Blind Zone Alert
- 6-Speaker Audio System Feature
- Unauthorized Entry Theft-Deterrent System
- HD Surround Vision
- HD Rear Vision Camera Delete
- Bed View Camera w/2 Trailer Camera Provisions
- 4-Wheel Disc Brakes
- Apple CarPlay/Android Auto
- Emergency communication system: OnStar
- AM/FM radio: SiriusXM with 360L
- Auto High-beam Headlights
- Front Center Armrest w/Storage
- Compass
- Variably intermittent wipers
- Turn signal indicator mirrors
- Trip computer
- Traction control
- Tilt steering wheel
- Steering wheel mounted audio controls
- Split folding rear seat
- Speed control
- Remote keyless entry
- Rear step bumper
- Rear reading lights
- Power windows
- Power steering
- Power door mirrors
- Passenger vanity mirror
- Passenger door bin
- Panic alarm
- Overhead console
- Overhead airbag
- Outside temperature display
- Occupant sensing airbag
- Low tire pressure warning
- Illuminated entry
- Heated door mirrors
- Fully automatic headlights
- Front wheel independent suspension
- Front reading lights
- Front anti-roll bar
- Dual front side impact airbags
- Dual front impact airbags
- Driver vanity mirror
- Driver door bin
- Delay-off headlights
- Bumpers: chrome
- Brake assist
- Alloy wheels
- ABS brakes
- Voltmeter
- Tachometer
- Electronic Stability Control
- Air Conditioning
- 6 Speakers
Detailed Specifications
- 1-touch down
- 1-touch up
- 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
- Heated steering wheel
- Illuminated entry
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear door bins
- Remote engine start: keyfob and smart device (subscription required)
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision yes
- 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
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 6
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Diesel engine warranty: 60 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest: w/storage
- Front seats: bench
- Heated front seats
- Max seating capacity: 6
- Power 2-way driver lumbar support
- Power driver seat
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: cloth
- Split folding rear seat
- 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: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,493kg (7,701lbs)
- 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: 5,058kg (11,150lbs)
- Payload: 1,547kg (3,411lbs)
- 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 yes
- 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
- 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
- Tracker system: Stolen Vehicle Assistance
- 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 - 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).