Elevate your driving experience with the exceptional 2025 GMC Sierra 2500HD Denali. This powerful and versatile pickup is engineered to conquer any terrain, delivering unparalleled performance and uncompromising luxury.
Equipped with a Duramax 6.6L V8 Turbodiesel engine, this Sierra 2500HD Denali boasts an impressive 470 horsepower and an astounding 975 lb-ft of torque, providing the muscle to tackle any job with ease. Paired with a 10-speed automatic transmission and 4-wheel drive, this truck is ready to take on the toughest challenges, whether you're hauling heavy loads or venturing off the beaten path.
⢠Power-Retractable Assist Steps with LED Perimeter Lighting and Bright Accent
⢠220-Amp Alternator
⢠Engine Block Heater
⢠Exhaust Brake
Step inside the Denali and experience unparalleled luxury. The cabin is adorned with genuine wood accents, a heated steering wheel, and Forge Perforated Leather-Appointed Front Seat Trim, ensuring both comfort and style. The Bose Premium 7-Speaker Sound System and Wireless Charging capabilities elevate your driving experience, while the Trailer Cam Provisions and Trailer Viewing Software make towing a breeze.
Designed with your safety in mind, the 2025 Sierra 2500HD Denali is equipped with a suite of advanced driver-assistance technologies, including Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning System. The HD Surround Vision and Ultrasonic Front & Rear Park Assist features provide added peace of mind, whether navigating tight spaces or maneuvering through busy city streets.
Beyond its impressive capabilities, the Sierra 2500HD Denali also boasts a bold and refined exterior. The Signature Chrome Denali Grille, Polished Exhaust Tip, and 20-inch Ultra Bright Machined Alloy Wheels command attention, while the Spray-On Pickup Bedliner with GMC Logo and Rear Wheelhouse Liners ensure durability and protection.
Experience the uncompromising power, luxury, and versatility of the 2025 GMC Sierra 2500HD Denali. Visit our showroom today and let us demonstrate how this exceptional truck can elevate your driving experience.
Used 2025 GMCSierra 2500HD Denali Truck Duramax V8 Turbodiesel
- Diesel
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 26,252 miles
- Body/Seating
- Truck/5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT4UREY3SF150936
- Stock Number
- 26M298A
Highlighted Features
- Lane departure
- Leather upholstery
- 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
Included Packages & Accessories
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L Trial Subscription
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel mounted audio controls
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Box
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Speed control
- 220-Amp Alternator
- Engine Block Heater
- Exhaust Brake
- Heavy-Duty 80 Amp Battery
- Auto-dimming door mirrors
- Bumpers: body-color
- Heated door mirrors
- IntelliBeam Automatic High Beam On/Off
- Power door mirrors
- Power-Retractable Assist Steps
- Rear step bumper
- Spray-On Pickup Bedliner w/GMC Logo
- Turn signal indicator mirrors
- Winter Grille Cover
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Bed View Camera w/2 Trailer Camera Provisions
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front reading lights
- Garage door transmitter
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trailer Cam Provisions & Trailer Viewing Software
- Trip computer
- Ultrasonic Front & Rear Park Assist
- Voltmeter
- 12-Way Power Driver Seat Adjuster w/Lumbar
- 12-Way Power Passenger Seat Adjuster w/Lumbar
- Forge Perforated Leather-Appointed Front Seat Trim
- Front Center Armrest
- Heated Driver & Front Outboard Passenger Seats
- Heated front seats
- Heated rear seats
- Power passenger seat
- Split folding rear seat
- Ventilated Driver & Front Passenger Seats
- Ventilated front seats
- Passenger door bin
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- Alloy wheels
- Wheels: 20" Ultra Bright Machined
- Power Front Passenger Windows w/Express Up/Down
- Power Sliding Rear Window w/Defogger
- Rain sensing wipers
- Variably intermittent wipers
- Preferred Equipment Group 5SA
- X31 Off-Road Package
- Bose Premium 7-Speaker Sound System
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Column
- Off-Road Suspension
- Hill Descent Control
- Unauthorized Entry Theft-Deterrent System
- 2-Speed Active Transfer Case
- LED Cargo Area Lighting
- LED Smoked Amber Roof Marker Lamps
- Polished Exhaust Tip
- Rear Wheelhouse Liners
- Signature Chrome Denali Grille
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- 2 USB Ports
- Floor-Mounted Center Console
- HD Surround Vision
- OnStar Services Capable
- Rear Cross Traffic Alert
- Trailer Side Blind Zone Alert
- Wireless Charging
- Wireless Phone Projection
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Safety Alert Seat
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
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
- 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
- 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
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated front seats
- Heated rear seats
- Leather upholstery
- Massaging driver lumbar support
- Massaging passenger lumbar support
- Max seating capacity: 5
- 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
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Door mirrors: 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
- Skid plates
- Tailpipe finisher: polished
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- 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")
- 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")
- 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
- 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
Standard Features
- Safety Alert Seat
- Rear Cross Traffic Alert
- Trailer Side Blind Zone Alert
- Wireless Phone Projection
- Bose Premium 7-Speaker Sound System
- Floor-Mounted Center Console
- Electric Rear-Window Defogger
- Push Button Start
- Remote Vehicle Starter System
- 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
- HD Surround Vision
- Heated 2nd Row Outboard Seats
- Deep-Tinted Glass
- Signature Chrome Denali Grille
- Steering Wheel Audio Controls
- LED Smoked Amber Roof Marker Lamps
- LED Cargo Area Lighting
- Manual Tilt-Wheel/Telescoping Steering Column
- Unauthorized Entry Theft-Deterrent System
- Universal Home Remote
- Wireless Charging
- Rear Wheelhouse Liners
- Front Rain-Sensing Wipers
- X31 Off-Road Package
- Polished Exhaust Tip
- 2-Speed Active Transfer Case
- Driver Memory
- Hill Descent Control
- Off-Road Suspension
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!