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Used 2025 GMCSierra 2500 HD Denali Ultimate Truck
- Exterior Color
- Onyx Black
- Interior Color
- Alpine Umber, Full Grain Leather seat trim
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- 6.6L Duramax Turbo-Diesel V8 engine
- VIN
- 1GT4UXEY2SF366538
- Stock Number
- TSF366538
Included Packages & Accessories
Detailed Specifications
- 3-point seatbelt : Rear seat center 3-point seatbelt
- ABS Brakes : 4-wheel antilock (ABS) brakes
- Auto headlights : Auto on/off headlight control
- Auto high-beam headlights : Auto high-beam headlights
- Blind spot : Trailer Side Blind Zone Alert blind spot warning
- Brake assist system : Automatic Emergency Braking predictive brake assist system
- Brake type : 4-wheel disc brakes
- Cab mounted cargo light : Cab mounted cargo light
- Camera : HD Surround Vision w/Hitch View aerial view camera
- Child door locks : Manual rear child safety door locks
- Clearance lights : Cab clearance lights
- Configurable instrumentation gauges : Configurable instrumentation gauges
- Convex spotter : Driver and passenger convex spotter mirrors
- Delay off headlights : Delay-off headlights
- Distance alert : Following Distance Indicator
- Electronic stability control : Electronic stability control system with anti-roll
- Fog lights : LED front fog lights
- Forward collision warning : Forward Collision Alert with Automatic Braking
- Front camera : Front mounted camera with washer
- Front impact airbag driver : Driver front impact airbag
- Front impact airbag passenger : Passenger front impact airbag
- Front side impact airbag driver : Seat mounted side impact driver airbag
- Front side impact airbag passenger : Seat mounted side impact front passenger airbag
- Gauge cluster display size (inches) : Gauge cluster display size: 12.30
- Head up display : Head-up display
- Headlight type : Projector beam headlights
- Headlights : LED low and high beam headlights
- High mount stop light : High mounted center stop light
- Hill control : Hill Descent Control (HDC)
- Hill start assist : Hill start assist
- Illuminated entry : Illuminated entry
- Immobilizer : Immobilizer
- Instrumentation display : Digital/analog instrumentation display
- Interior courtesy lights : Fade interior courtesy lights
- LED brake lights : LED brake lights
- Lane departure : Lane Departure Warning
- Left camera : Left side camera
- Low tire pressure warning : Tire specific low air pressure warning
- Multiple headlights : Multiple enclosed headlights
- Number of airbags : 6 airbags
- Occupancy sensor : Airbag occupancy sensor
- Overhead airbags : Curtain first and second-row overhead airbags
- Parking sensors : UltraSonic front and rear parking sensors
- Pedestrian detection : Front Pedestrian Braking
- Perimeter approach lighting : Remote activated perimeter approach lighting
- Pickup box camera : Pickup box camera
- Rain detecting wipers : Rain detecting wipers
- Rear camera : HD Rear Vision Camera w/Hitch View rear mounted camera
- Rear collision warning : Rear Cross-Traffic Alert collision warning
- Remote panic alarm : Remote panic alarm
- Restricted driving mode/alerts : Teen Driver restricted driving mode/alerts
- Right camera : Right side camera
- Running lights : LED daytime running lights
- Seatbelt pretensioners : Front seatbelt pretensioners
- Seatbelt pretensioners number : 2 seatbelt pre-tensioners
- Security system : Security system
- Turn signal in door mirrors : Turn signal indicator in door mirrors
- Vehicle tracker : Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Video rearview mirror : Video-feed rearview mirror
- Air conditioning : Yes
- Armrests front center : Front seat center armrest
- Armrests rear : Rear seat center armrest
- Cabback insulator : Cabback insulator
- Climate control : Automatic climate control
- Console insert material : Aluminum console insert
- Cooled front seats : Ventilated driver and front passenger seats
- Door panel insert : Aluminum and genuine wood door panel insert
- Door trim insert : Leather door trim insert
- Driver lumbar : Driver seat with 4-way power lumbar
- Driver seat direction : Driver seat with 12-way directional controls
- Dual-zone front climate control : Dual-zone front climate control
- Floor coverage : Full floor coverage
- Floor covering : Full carpet floor covering
- Floor mats : Carpet front and rear floor mats
- Folding rear seats : 60-40 folding rear seats
- Front head restraint control : Manual front seat head restraint control
- Front head restraints : Height adjustable front seat head restraints
- Front passenger lumbar : Front passenger seat with 4-way power lumbar
- Front seat upholstery : Leather front seat upholstery
- Front seatback upholstery : Plastic front seatback upholstery
- Gearshifter material : Urethane gear shifter material
- Headliner coverage : Full headliner coverage
- Headliner material : Simulated suede headliner material
- Heated front seats : Heated driver and front passenger seats
- Heated rear seats : Heated rear seats
- Heated steering wheel : Heated steering wheel
- Interior accents : Chrome interior accents
- Massaging driver seat : Massaging driver seat
- Massaging front passenger seat : Massaging front passenger seat
- Number of memory settings : 2 memory settings
- Panel insert : Aluminum and genuine wood instrument panel insert
- Passenger seat direction : Front passenger seat with 12-way directional controls
- Power driver seat controls : Driver seat power reclining, lumbar support, seatback side bolster support, cushion tilt, fore/aft control and height adjustable control
- Power passenger seat controls : Passenger seat power reclining, lumbar support, seatback side bolster support, cushion tilt, fore/aft control and height adjustable control
- Rear console climate control ducts : Rear console climate control ducts
- Rear head restraint control : 2 rear seat head restraints
- Rear head restraint control : Manual rear seat head restraint control
- Rear head restraints : Height adjustable rear seat head restraints
- Rear seat folding position : Fold-up rear seat cushion
- Rear seat upholstery : Leather rear seat upholstery
- Rear seatback upholstery : Carpet rear seatback upholstery
- Rear seats : Split-bench rear seat
- Rear seats fixed or removable : Fixed rear seats
- Rear under seat ducts : Rear under seat climate control ducts
- Seating capacity : 5
- Split front seats : Bucket front seats
- Steering wheel material : Leather steering wheel
- Steering wheel telescopic : Manual telescopic steering wheel
- Steering wheel tilt : Manual tilting steering wheel
- Tinted windows : Deep tinted windows
- Accessory power : Retained accessory power
- Adaptive cruise control : Adaptive cruise control
- All-in-one key : All-in-one remote fob and ignition key
- Auto door locks : Auto-locking doors
- Auto-dimming door mirror driver : Auto-dimming driver side mirror
- Auto-dimming door mirror passenger : Auto-dimming passenger side mirror
- Battery charge warning : Battery charge warning
- Beverage holders : Front beverage holders
- Beverage holders rear : Rear beverage holders
- Boxside steps : BedStep integrated side steps
- Brake pad warning : Brake pad wear indicator
- Built-in virtual assistant : Google Built-In built-in virtual assistant
- Clock : Digital clock
- Compass : Compass
- Cruise control : Cruise control with steering wheel mounted controls
- DEF fluid gauge : Diesel exhaust fluid (def) gauge
- Day/Night rearview mirror : Day/Night rearview mirror
- Door ajar warning : Door ajar warning
- Door bins front : Driver and passenger door bins
- Door bins rear : Rear door bins
- Door locks : Power door locks with 2 stage unlocking
- Door mirrors : Power door mirrors
- Driver foot rest : Driver foot rest
- Driver information center : Driver information center
- Easy lift tailgate : EZ Lift
- Easy lower tailgate : EZ Lower
- Engine hour meter : Engine hour meter
- Engine temperature warning : Engine temperature warning
- Engine/electric motor temperature gauge : Engine/electric motor temperature gauge
- Exterior 120V AC power outlet : 1 exterior 120V AC power outlet
- First-row windows : Power first-row windows
- Floor console : Full floor console
- Floor console storage : Covered floor console storage
- Fob engine controls : Keyless Open/Keyless Start with hands-free access and push button start
- Folding door mirrors : Power folding door mirrors
- Front reading lights : Front reading lights
- Full gauge cluster screen : Full gauge cluster screen
- Garage door opener : Garage door opener
- Glove box : Locking glove box
- Headlights on reminder : Headlights on reminder
- Heated door mirrors : Heated driver and passenger side door mirrors
- Ignition type : Push-button
- Inclinometer : Inclinometer
- Integrated tailgate step : Integrated tailgate step
- Interior 120V AC power outlets : 1 interior 120V AC power outlet
- Key in vehicle warning : Key in vehicle warning
- Keyfob cargo controls : Keyfob trunk control
- Keyfob keyless entry : Keyfob keyless entry
- Keyfob remote start : Keyfob remote start
- Keyfob window controls : Keyfob window control
- Low level warnings : Low level warning for oil, coolant, fuel, washer fluid, brake fluid and diesel exhaust fluid (DEF)
- Memory settings : Memory settings include: door mirrors
- Number of beverage holders : 8 beverage holders
- Oil pressure gauge : Oil pressure gauge
- Oil pressure warning : Oil pressure warning
- One-touch down window : Front and rear one-touch down windows
- One-touch up window : Driver and passenger one-touch up windows
- Overhead console : Mini overhead console
- Passenger doors rear left : Conventional left rear passenger door
- Passenger doors rear right : Conventional right rear passenger door
- Rear cargo door : MultiPro Tailgate tailgate
- Rear reading lights : Rear reading lights
- Rear seat check warning : Rear Seat Reminder rear seat check warning
- Rear seat direction : Front facing rear seat
- Rear window defroster : Rear window defroster
- Rear windshield : Power rear windshield
- Rearview mirror : Auto-dimming rear view mirror
- Seatback storage pockets : 2 seatback storage pockets
- Second-row windows : Power second-row windows
- Service interval warning : Service interval indicator
- Smart device remote start : Smart device remote start
- Speedometer : Redundant digital speedometer
- Steering mounted audio control : Steering wheel mounted audio controls
- Tachometer : Tachometer
- Tailgate control : Tailgate/power door lock
- Temperature display : Exterior temperature display
- Transmission fluid temperature warning : Transmission fluid temp warning
- Transmission temperature gauge : Transmission fluid temperature gauge
- Trip computer : Trip computer
- Trip odometer : Trip odometer
- Turn signal warning : Turn signal on warning
- Under seat tray rear : Rear under seat tray
- Variable panel light : Variable instrument panel light
- Visor driver mirror : Driver visor mirror
- Visor illuminated driver mirror : Illuminated driver visor mirror
- Visor illuminated passenger mirror : Illuminated passenger visor mirror
- Visor passenger mirror : Passenger visor mirror
- Voltmeter : Voltmeter
- Weight capacity alert : GCW Alert weight capacity alert
- Wipers : Variable intermittent front windshield wipers
- Wireless device charging : Front wireless smart device charging
- Bed liner : Spray-in pickup bed liner
- Bed-rail protectors : Pickup bed-rail protectors
- Body panels : Galvanized steel/aluminum body panels with side impact beams
- Box style : Standard style pickup box
- Bumper insert : Dark chrome front bumper insert
- Bumper rub strip front : Chrome front bumper rub strip
- Bumpers front : Body-colored front bumper
- Bumpers rear : Body-colored rear bumper
- Door handle material : Chrome door handles
- Door mirror style : Chrome door mirrors
- Door mirror type : Power extendable trailer mirrors
- Exterior mirror spot lights : Exterior mirror LED spot lights
- Fenders : Body-colored fender flares
- First-row sunroof : First-row sliding and tilting glass sunroof with express open/close activation sunshade
- Grille style : Dark chrome grille
- In-box lighting : LED in-box lighting
- License plate front bracket : Front license plate bracket
- Number of doors : 4 doors
- Paint : Non-metallic paint
- Rear bumper step : Rear bumper step
- Side steps : Illuminated power side steps
- Skid plate : 3 underbody skid plates
- Spare tire : Full-size spare tire with steel wheel
- Spare tire location : Crank-down spare tire
- Special paint : Monotone paint
- Tire sensors : Trailer tire pressure sensors
- Tires : LT275/65SR20 AT BSW front and rear tires
- Tow hooks front : 2 front tow hooks
- Towing brake controller : Trailer brake controller
- Towing class : Class IV tow rating
- Towing gooseneck hitch : Gooseneck trailer hitch
- Towing hitch : Trailer hitch
- Towing hitch light : Trailer hitch light
- Towing prep : 5th wheel and gooseneck prep
- Towing trailer sway : Trailer sway control
- Towing wiring harness : Trailer wiring harness
- Trailer light malfunction warning : Trailer light malfunction warning
- Trailer light test : Trailer light test
- Trailer theft alarm : Trailer theft alarm
- Vehicle and trailer reverse assist : Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Vehicle to trailer hitching assist : Hitch Guidance vehicle to trailer hitching assist
- Wheel covers : Wheel hub covers
- Wheels : 20 x 8.5-inch front and rear machined w/painted accents aluminum wheels
- Window Trim : Chrome side window trim
- Emissions : Federal emissions
- Amplifier : Amplifier
- Antenna : Fixed audio antenna
- Aux input jack : Auxiliary input jack
- Digital signal processor : Bose Centerpoint Surround digital signal processor
- Exterior speakers : 2 exterior speakers
- External memory : Premium GMC Infotainment System external memory control
- Internet radio capability : Internet radio capability
- Noise cancellation : AudioPilot active noise cancellation
- Number of first-row screens : 2 total number of 1st row displays
- Primary display size : 13.4 inch primary display
- Primary display touchscreen : Primary monitor touchscreen
- Radio : AM/FM/SiriusXM with 360Lsatellite
- Radio : AM/FM/SiriusXMsatellite
- Seek scan : Seek scan
- Speakers number : 12 speakers
- Voice activated audio : Voice activated audio controls
- Wireless speaker number : 2 wireless speakers
- Wireless streaming : Bluetooth wireless audio streaming
- 4WD type : AutoTrac part and full-time 4WD
- ABS Brakes : Four channel ABS brakes
- Alternator Type : Alternator
- Battery run down protection : Battery run down protection
- Battery type : Dual lead acid batteries
- Block heater : Engine block heater
- Compressor : Intercooled turbo
- Cylinder head material : Aluminum cylinder head
- Displacement liters : 6.6 L
- Drive type : Four-wheel drive
- Driver selectable steering effort : Driver selectable steering effort
- Electronic parking brake : Electronic parking brake
- Engine : Duramax 6.6L V-8 diesel direct injection, intercooled turbo, diesel, engine with 470HP
- Engine Configuration : V8
- Engine Location : Front mounted engine
- Engine Mounting direction : Longitudinal mounted engine
- Engine Short : Duramax 6.6L V-8
- Engine block material : Iron engine block
- Engine cooler : Engine oil cooler
- Engine retarder : Engine retarder system
- Front anti-roll : Front anti-roll bar
- Fuel Type : Diesel
- Horsepower : 470 HP @2800 RPM
- Ignition : Compression ignition system
- Lock-up transmission : Lock-up transmission
- Locking hub control : Auto locking hub control
- Overdrive transmission : Overdrive transmission
- Powertrain type : ICE
- Radiator : Radiator
- Rear Springs : Regular grade rear springs
- Rear locking differential : Automatic rear locking differential
- Selectable mode transmission : Selectable mode transmission
- Sequential shift control : Sequential shift control
- Shock absorbers : Rancho gas-pressurized shock absorbers
- Speed sensitive steering : Digital Steering Assist speed sensitive power steering
- Springs front : Front torsion springs
- Springs rear : Rear leaf springs
- Steering : Hydraulic power-assist steering system
- Steering type : Re-circulating ball steering
- Suspension : Off-road ride suspension
- Suspension ride type front : Independent front suspension
- Suspension ride type rear : Rigid axle rear suspension
- Suspension type front : Short and long arm front suspension
- Suspension type rear : Leaf spring rear suspension
- Tailpipe : Stainless steel single exhaust
- Traction control : All-speed ABS and driveline traction control
- Transfer case : Electronic transfer case shift
- Transmission : Allison 10-speed automatic
- Transmission Type : Automatic
- Transmission electronic control : Transmission electronic control
- Transmission oil cooler : Transmission oil cooler
- Two-Speed Transfer Case : Two-Speed Transfer Case
- Valves per cylinder : 4
- Ventilated brakes : Front and rear ventilated disc brakes
- Emergency SOS Capable : OnStar vehicle integrated emergency SOS system
- Handsfree : Bluetooth handsfree wireless device connectivity
- Internet access : Wi-Fi Hotspot capable mobile hotspot internet access
- Mobile app access : MyGMC Mobile App mobile app access
- Smart device integration : Apple CarPlay/Android Auto smart device wireless mirroring
- Turn-by-turn nav : OnStar Turn-by-Turn Navigation
- USB ports : 7 USB ports
Dealer Notes
2025 GMC Sierra 2500HD Denali Ultimate. 1-Owner. Clean Carfax. PREFERRED EQUIPMENT GROUP, GOOSENECK / 5TH WHEEL PREP PACKAGE, 4WD, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM, Navigation System, Color Multi-touch display, Blind Spot Monitor, Front Collision Mitigation/Warning, Cross-Traffic Alert, Lane Departure Warning, Aerial View Display, Heads-Up Display. All recommended services are complete. Chat, email or call today to schedule your test drive and experience the difference for yourself! Please verify any information in question with Lone Star Chevrolet, located at: 18800 Northwest Fwy, Houston, TX, 77065. Visit us online at www.LoneStarChevrolet.com or call (866) 665-9782.. All recommended services are complete. Chat, email or call today to schedule your test drive and experience the difference for yourself! Please verify any information in question with Lone Star Chevrolet, located at: 18800 Northwest Fwy, Houston, TX, 77065. Visit us online at www.LoneStarChevrolet.com or call (866) 665-9782.
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!
We have taken reasonable efforts to ensure display of accurate data; however, the information shown may contain errors and omissions, may not reflect all vehicle items and accessories, and errors with regard to pricing may occur. All displayed inventory is subject to prior sale and all prices expire at midnight on the date displayed. Price shown is for the state in which Dealer is physically located and if transferred to another state, the price may change. Dealer is not responsible for any errors but should be consulted in person to confirm the information on this page.
PRE-OWNED VEHICLES MAY BE SUBJECT TO UNREPAIRED MANUFACTURER RECALLS. PLEASE CONTACT THE MANUFACTURER OR A DEALER FOR THAT LINE MAKE FOR RECALL ASSISTANCE/QUESTIONS OR CHECK THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION WEBSITE FOR CURRENT RECALL INFORMATION BEFORE PURCHASING.Price excludes tax, tag, title, dealer installed options, and $225 documentary fee.