Priced below KBB Fair Purchase Price! 10-Speed Automatic, Dark Walnut/Slate Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 1st & 2nd Row All-Weather Floor Liner (LPO), 2 USB Ports, 2 USB Ports (1st Row), 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 3.42 Axle Ratio, 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, 6" Rectangular Chrome Tubular Assist Steps (LPO), ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Assist Step & Floor Liner Package (LPO), Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Brake assist, Bumpers: chrome, Chrome Surround Grille w/High Gloss Black Mesh, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, 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, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Front 40/20/40 Split-Bench Seats w/Lockable Storage, Front anti-roll bar, Front Bucket Seats, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, HD Radio, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing airbag, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, 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 windows, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SA, Premium audio system: Premium GMC Infotainment System, Radio: AM/FM w/Premium GMC Infotainment System, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Security system, SiriusXM w/360L, SLT Convenience Package, Speed control, Speed-sensing steering, Split folding rear seat, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Suspension Package, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Variably intermittent wipers, Voltmeter, Wheels: 18" 6-Spoke Machined Aluminum, Wheels: 20" 6-Spoke Bright Machined Aluminum, Winter Grille Cover, 10-Speed Automatic, Dark Walnut/Slate Leather.
2020 GMC Sierra 2500HD SLT RWD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Summit White
Used 2020 GMCSierra 2500HD SLT Truck Duramax V8 Turbodiesel
- Exterior Color
- Summit White
- Interior Color
- Dark Walnut/Slate
- Odometer
- 123,457 miles
- Transmission
- 10-Speed Automatic
- Drivetrain
- RWD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT48NEY1LF310407
- Stock Number
- H25SD171A
GMC
Sierra 2500HD
Included Packages & Accessories
- 3.73 Rear Axle Ratio
- 3.42 Axle Ratio
- Wheels: 18" 6-Spoke Machined Aluminum
- Wheels: 20" 6-Spoke Bright Machined Aluminum
- Perforated Leather-Appointed Front Seat Trim
- 1st & 2nd Row All-Weather Floor Liner (LPO)
- Pickup Box
- Assist Step & Floor Liner Package (LPO)
- 6" Rectangular Chrome Tubular Assist Steps (LPO)
- 220 Amps Alternator
- Engine Block Heater
- Suspension Package
- Winter Grille Cover
- Exhaust Brake
- Heavy-Duty 80 Amp Battery
- 2 USB Ports (1st Row)
- 4-Wheel Disc Brakes
- Apple CarPlay/Android Auto
- Premium audio system: Premium GMC Infotainment System
- AM/FM radio: SiriusXM
- Front Center Armrest w/Storage
- Compass
- Auto-dimming Rear-View mirror
- Variably intermittent wipers
- Turn signal indicator mirrors
- Trip computer
- Traction control
- Tilt steering wheel
- Telescoping steering wheel
- Steering wheel mounted audio controls
- Split folding rear seat
- Speed-sensing steering
- Speed control
- Security system
- Remote keyless entry
- Rear window defroster
- Rear step bumper
- Rear seat center armrest
- Rear reading lights
- Power windows
- Power steering
- Power passenger seat
- Power driver seat
- Power door mirrors
- Passenger vanity mirror
- Passenger door bin
- Panic alarm
- Overhead console
- Overhead airbag
- Outside temperature display
- Occupant sensing airbag
- Memory seat
- Low tire pressure warning
- Illuminated entry
- Heated steering wheel
- Heated front seats
- Heated door mirrors
- Fully automatic headlights
- Front wheel independent suspension
- Front reading lights
- Front fog lights
- Front dual zone A/C
- 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
- Automatic temperature control
- Auto-dimming door mirrors
- Alloy wheels
- ABS brakes
- Voltmeter
- Tachometer
- Electronic Stability Control
- Air Conditioning
- 6 Speakers
- Preferred Equipment Group 4SA
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- Front Bucket Seats
- 10-Way Power Driver Seat Adjuster w/Lumbar
- SLT Convenience Package
- Radio: AM/FM w/Premium GMC Infotainment System
- Electric Rear-Window Defogger
- OnStar & GMC Connected Services Capable
- 120-Volt Instrument Panel Power Outlet
- Deep-Tinted Glass
- LED Smoked Amber Roof Marker Lamps
- LED Cargo Area Lighting
- Integrated Trailer Brake Controller
- Driver Memory
- Power Sliding Rear Window w/Defogger
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- GMC Connected Access Capable
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- Keyless Open & Start
- Power Door Locks
- Power Windows w/Driver Express Up/Down
- Rear Wheelhouse Liners
- Remote Vehicle Starter System
- Compass Located In Instrument Cluster
- Floor-Mounted Center Console
- Chrome Surround Grille w/High Gloss Black Mesh
- Heated Driver & Front Outboard Passenger Seats
- Heated 2nd Row Outboard Seats
- 120-Volt Bed Mounted Power Outlet
- 12-Volt Rear Auxiliary Power Outlet
- Heated & Ventilated Front Bucket Seats
- 2 USB Ports
- Electrical Lock Control Steering Column
- Manual Tilt-Wheel/Telescoping Steering Column
- ProGrade Trailering System
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- SiriusXM w/360L
- HD Radio
- 4.2" Diagonal Color Display Driver Info Center
- Universal Home Remote
- Steering Wheel Audio Controls
- 6-Speaker Audio System Feature
- 2nd Row Dual USB Charge-Only Ports
- Unauthorized Entry Theft-Deterrent System
- 4G LTE Wi-Fi Hotspot Capable
Included Packages & Options
- SLT Convenience Package$1,570
- Front Bucket Seats
- Floor-Mounted Center Console
- Heated & Ventilated Front Bucket Seats
- Power Sliding Rear Window w/Defogger
- Universal Home Remote
- 2 USB Ports
- LED Smoked Amber Roof Marker Lamps
- Heated 2nd Row Outboard Seats
Included Options
- Wheels: 20" 6-Spoke Bright Machined Aluminum$1,400
- 220 Amps Alternator$150
- Engine Block Heater$100
Detailed Specifications
- 1st and 2nd row curtain head airbags
- 4-wheel ABS Brakes
- ABS and Driveline Traction Control
- Anti-theft alarm system
- Audio System Premium Brand : Premium GMC Infotainment System
- Audio controls on steering wheel
- Audio system memory card slot
- Automatic front air conditioning
- Auxilliary engine cooler
- Auxilliary transmission cooler
- Bluetooth wireless phone connectivity
- Braking Assist
- Climate Controlled : Driver and passenger heated
- Compass
- Cruise control
- Cruise controls on steering wheel
- Daytime running lights
- Driver seat memory
- Dual front air conditioning zones
- Dual illuminated vanity mirrors
- Electrochromatic auto-dimming mirrors
- Electrochromatic rearview mirror
- External temperature display
- Fold-up cushion rear seats
- Front Ventilated disc brakes
- Front and rear reading lights
- Front fog/driving lights
- Front split-bench
- Fuel Type: Regular unleaded
- Heated driver mirror
- Heated passenger mirror
- Heated steering wheel
- Leather seat upholstery
- Leather/metal-look steering wheel trim
- Machined aluminum rims w/ painted accents
- Memorized Settings for 2 drivers
- Memorized Settings including door mirror(s)
- Metal-look dash trim
- Passenger Airbag
- Power extendable trailer style exterior mirrors
- Power remote driver mirror adjustment
- Power remote passenger mirror adjustment
- Power retractable mirrors
- Power windows
- Privacy glass: Deep
- Rear seats center armrest
- Remote Engine Start : Keyfob remote start
- Remote activated exterior entry lights
- Remote power door locks
- Remote window operation
- Side airbag
- Simulated wood/metal-look door trim
- SiriusXM AM/FM/HD/Satellite Radio
- SiriusXM Satellite Radio(TM)
- Speed-proportional power steering
- Split rear bench
- Stability controll with anti-roll
- Suspension class: Regular
- Tachometer
- Tilt and telescopic steering wheel
- Tire Pressure Monitoring System: Tire specific
- Total Number of Speakers: 6
- Trailer hitch
- Trip computer
- Turn signal in mirrors
- Urethane shift knob trim
- Vehicle Emissions: LEV II
- Video Monitor Location: Front
- Wheel Diameter: 18
- Wheel Width: 8
Dealer Notes
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… - 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).…
Based on 13 consumer ratings for 2020–2025 models. | Privacy
- Suggested Retail Price
- $47,819
- Discount
- -$7,037
- Long-Lewis Price
- $40,782
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- We're here to help: (205) 989-3177