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Used 2025 GMC Sierra 1500 Denali Ultimate Truck Crew Cab Photo 1 of 1

Used 2025 GMCSierra 1500 Denali Ultimate G26549A

  • Diesel
On the Lot
at Colonial Buick GMC
Location Details
    Exterior Color
    Sterling Metallic
    Interior Color
    Alpine Umber, Full grain leather front seat trim
    Odometer
    21,144 miles
    Fuel Economy
    22/26 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    3.0L Duramax® Turbo Diesel engine
    VIN
    1GTUUHE80SZ129292
    Stock Number
    G26549A
    GMC Sierra 1500
    • Show Me the CARFAX 1-Owner Badge

    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 : IntelliBeam auto high-beam headlights
    • Autonomous cruise control : Hands-off cruise control with lane change
    • Autonomous cruise control : Hands-on cruise control with lane change
    • Blind spot : Trailer Side Blind Zone Alert blind spot warning
    • Brake assist system : Enhanced 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
    • Configurable instrumentation gauges : Configurable instrumentation gauges
    • Delay off headlights : Delay-off headlights
    • Distance alert : Following Distance Indicator
    • Driver attention monitor : Driver Attention Assist
    • Electronic stability control : StabiliTrak w/Proactive Roll Avoidance 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 (HSA)
    • Illuminated entry : Illuminated entry
    • Immobilizer : Immobilizer
    • Instrumentation display : Analog instrumentation display
    • Interior courtesy lights : Fade interior courtesy lights
    • LED brake lights : LED brake lights
    • Lane departure : Lane Keep Assist with 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 : Front and Rear Park Assist front and rear parking sensors
    • Pedestrian detection : Front Pedestrian Braking
    • Perimeter approach lighting : Remote activated perimeter approach lighting with puddle lights
    • 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 Braking collision mitigation
    • Rear pedestrian detection : Rear Pedestrian Alert rear pedestrian detection 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
    • SAE Autonomy : Level 2 - partial automation SAE Autonomy
    • Seatbelt pretensioners : Front seatbelt pretensioners
    • Seatbelt pretensioners number : 2 seatbelt pre-tensioners
    • Security system : Security system
    • 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 and genuine wood console insert
    • Cooled front seats : Ventilated driver and front passenger seats
    • Dashboard material : Leather upholstered dashboard
    • 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 : Rubber front and rear floor mats with carpet inserts
    • 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 : Leather front seatback upholstery
    • Gearshifter material : Metal-look 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 : Aluminum 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, articulating upper backrest, fore/aft control and height adjustable control
    • Power passenger seat controls : Passenger seat power reclining, lumbar support, seatback side bolster support, cushion tilt, articulating upper backrest, 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
    • Seating capacity : 5
    • Split front seats : Bucket front seats
    • Steering wheel material : Leatherette steering wheel
    • Steering wheel telescopic : Power telescopic steering wheel
    • Steering wheel tilt : Power tilting steering wheel
    • Tinted windows : Deep tinted windows
    • Voice activated climate control : Voice-activated climate control
    • Accessory power : Retained accessory power
    • Adaptive cruise control : Adaptive cruise control with stop and go
    • 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
    • Battery charge warning : Battery charge warning
    • Beverage holders : Front beverage holders
    • Beverage holders rear : Rear beverage holders
    • Boxside steps : Retractable side steps
    • Brake pad warning : Brake pad wear indicator
    • Built-in virtual assistant : Google Built-In built-in virtual assistant
    • Capless fuel filler : Capless fuel filler
    • 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 mirror with tilt-down in reverse : Power driver and passenger door mirrors with tilt down in reverse
    • 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
    • Overhead console storage : Overhead console storage
    • 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
    • Tire pressure : Tire Fill Alert tire pressure fill assist
    • 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-rail protectors : Pickup bed-rail protectors
    • Body panels : Galvanized steel/aluminum/composite body panels with side impact beams
    • Box style : Standard composite style pickup box
    • 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 : Standard style side mirrors
    • 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
    • Number of doors : 4 doors
    • Paint : Metallic paint
    • Rear bumper step : CornerStep rear bumper step
    • Side steps : Power side steps
    • Spare tire : Full-size spare tire with steel wheel
    • Spare tire location : Crank-down spare tire
    • Special paint : Monotone paint
    • Tire sensors : GMC ProGrade Trailering System trailer tire pressure and temperature sensors
    • Tires : P275/50SR22 AS 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 hitch : Trailer hitch
    • Towing hitch light : Trailer hitch light
    • 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 : Vehicle and trailer reverse assist with visual graphic guidance only
    • Vehicle to trailer hitching assist : Vehicle to trailer hitching assist
    • Wheel locks : Wheel security locks
    • Wheels : 22 x 9-inch front and rear machined w/painted accents aluminum wheels
    • Window Trim : Chrome side window trim
    • Emissions tiers : Tier 3 Bin 70 emissions
    • Fuel economy (city/highway/combined) : 22/26/24 MPG
    • Amplifier : Amplifier
    • Antenna : Fixed audio antenna
    • 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
    • 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
    • RDS : Radio data system (RDS)
    • Radio : AM/FM/SiriusXM with 360Lsatellite
    • Satellite trial : 3 month satellite trial subscription
    • Seek scan : Seek scan
    • Speakers : Bose speakers
    • Speakers number : 12 speakers
    • Speed sensitive volume : Bose AudioPilot speed sensitive volume
    • Voice activated audio : Premium GMC Infotainment System voice activated audio controls
    • 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 : Heavy-duty lead acid battery
    • Block heater : Engine block heater
    • Compressor : Intercooled turbo
    • Cylinder head material : Aluminum cylinder head
    • Displacement liters : 3 L
    • Drive type : Four-wheel drive
    • Electronic parking brake : Electronic parking brake
    • Engine : Duramax 3L I-6 diesel direct injection, DOHC, variable valve control, intercooled turbo, diesel, engine with 305HP
    • Engine Configuration : I6
    • Engine Location : Front mounted engine
    • Engine Mounting direction : Longitudinal mounted engine
    • Engine Short : Duramax 3L I-6 DOHC
    • Engine block material : Aluminum engine block
    • Front anti-roll : Front anti-roll bar
    • Fuel Type : Diesel
    • Horsepower : 305 HP @3750 RPM
    • Ignition : Compression ignition system
    • Lock-up transmission : Lock-up transmission
    • Locking hub control : Auto locking hub control
    • Multi-mode exhaust : Multi-mode exhaust
    • 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 with steering wheel controls
    • Shock absorbers : Gas-pressurized shock absorbers
    • Speed sensitive steering : Speed sensitive power steering
    • Springs front : Front coil springs
    • Springs rear : Rear leaf springs
    • Start-stop engine : Auto stop-start engine
    • Steering : Electric power-assist steering system
    • Steering type : Rack-pinion steering
    • Suspension : Standard ride suspension
    • Suspension auto correcting : Adaptive ride suspension
    • Suspension control : Automatic suspension ride control
    • 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 quasi-dual exhaust with chrome tailpipe finisher
    • Traction control : All-speed ABS and driveline traction control
    • Transfer case : Electronic transfer case shift
    • Transmission : 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
    • Variable intake manifold : Variable intake manifold
    • Ventilated brakes : Front and rear ventilated disc brakes
    • Emergency SOS Capable : OnStar vehicle integrated emergency SOS system
    • Handsfree : Bluetooth handsfree wireless device connectivity
    • Integrated navigation : Integrated navigation system with voice activation
    • 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 : 6 USB ports

    Dealer Notes

    EPA 26 MPG Hwy/22 MPG City! CARFAX 1-Owner. Heated Leather Seats, Sunroof, NAV, Heated Rear Seat, 4x4, Turbo, Bed Liner, Alloy Wheels, TRANSMISSION, 10-SPEED AUTOMATIC WITH... ENGINE, DURAMAX 3.0L TURBO-DIESEL I6, Tow Hitch SEE MORE!

    KEY FEATURES INCLUDE
    Leather Seats, Sunroof, 4x4, Heated Driver Seat, Heated Rear Seat, Cooled Driver Seat, Back-Up Camera, Running Boards, Premium Sound System, Onboard Communications System, Trailer Hitch, Aluminum Wheels, Remote Engine Start, Dual Zone A/C, Lane Keeping Assist Keyless Entry, Privacy Glass, Steering Wheel Controls, Heated Mirrors, Electronic Stability Control.

    OPTION PACKAGES
    AUDIO SYSTEM, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, INCLUDES COLOR TOUCH-SCREEN, MULTI-TOUCH DISPLAY, AM/FM STEREO Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto® and Apple CarPlay® capability for compatible phones (STD), TRANSMISSION, 10-SPEED AUTOMATIC WITH ELECTRONIC PRECISION SHIFT, ELECTRONICALLY CONTROLLED with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking, ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.). GMC Denali Ultimate with Sterling Metallic exterior and Alpine Umber interior features a Straight 6 Cylinder Engine with 305 HP at 3750 RPM*.

    EXPERTS RAVE
    Great Gas Mileage: 26 MPG Hwy.

    A GREAT TIME TO BUY
    This Sierra 1500 is priced $7,600 below J.D. Power Retail. Approx. Original Base Sticker Price: $84,200*.

    MORE ABOUT US
    Here at Colonial Buick GMC, we work hard to find you the perfect new or used car, truck, SUV, or crossover that best fits your needs. Looking for parts or need an oil change? Colonial Buick GMCs got you covered there too.

    Pricing analysis performed on 2/14/2026. Horsepower calculations based on trim engine configuration. Fuel economy calculations based on original manufacturer data for trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.
    Price
    $68,985
    Value a Trade
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