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Used 2025 GMC Sierra 1500 Denali Truck Photo 1 of 27

Used 2025 GMCSierra 1500 Denali

    Exterior Color
    Onyx Black
    Interior Color
    Jet Black
    Odometer
    13,332 miles
    Body/Seating
    Truck/5 seats
    Fuel Economy
    15/19 MPG City/Hwy
    Transmission
    10-Speed Automatic
    Drivetrain
    4WD
    Engine
    EcoTec3 6.2L V8
    VIN
    1GTUUGEL6SZ135614
    Stock Number
    11998TN
    GMC Sierra 1500
    • Show Me the CARFAX Fair Value Badge

    Highlighted Features

    • Navigation system
    • 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

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    Included Packages & Accessories

    • Navigation System
    • 7 Speakers
    • AM/FM radio: SiriusXM with 360L
    • Radio data 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 Front Passenger Windows w/Express Up/Down
    • Power Front Windows w/Driver Express Up/Down
    • Power Rear Windows w/Express Down
    • Power steering
    • Power windows
    • Remote keyless entry
    • Steering wheel mounted audio controls
    • Adaptive suspension
    • Power Rake & Telescoping Steering Column
    • Speed-sensing steering
    • Traction control
    • 4-Wheel Disc Brakes
    • ABS brakes
    • Dual front impact airbags
    • Dual front side impact airbags
    • Emergency communication system: OnStar
    • Enhanced Automatic Emergency Braking
    • Front anti-roll bar
    • Front wheel independent suspension
    • Keyless Open & Start
    • Low tire pressure warning
    • Occupant sensing airbag
    • Overhead airbag
    • Power Sunroof
    • Brake assist
    • Electronic Stability Control
    • Auto High-beam Headlights
    • Delay-off headlights
    • Front fog lights
    • Fully automatic headlights
    • Panic alarm
    • Security system
    • Theft Deterrent System (Unauthorized Entry)
    • Speed control
    • Auto-dimming door mirrors
    • Bumpers: body-color
    • Chrome Header w/Signature Denali Chrome Grille
    • Chrome Wheel To Wheel Assist Steps
    • Denali Premium Suspension w/Adaptive Ride Control
    • Dual Active Exhaust
    • Front License Plate Kit
    • Heated door mirrors
    • IntelliBeam Automatic High Beam On/Off
    • Power door mirrors
    • Rear step bumper
    • Spray-On Pickup Bedliner w/GMC Logo
    • Apple CarPlay/Android Auto
    • Auto-dimming Rear-View mirror
    • 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 console insert
    • Genuine wood dashboard insert
    • Genuine wood door panel insert
    • Heated steering wheel
    • Illuminated entry
    • Lane Keep Assist w/Lane Departure Warning
    • Outside temperature display
    • Overhead console
    • Passenger vanity mirror
    • Rear reading lights
    • Rear seat center armrest
    • Safety Alert Seat
    • Tachometer
    • Telescoping steering wheel
    • Tilt steering wheel
    • 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 Seat Trim
    • Front Center Armrest
    • Heated Driver & Front Outboard Passenger Seating
    • Heated front seats
    • Heated rear seats
    • Power passenger seat
    • Split folding rear seat
    • Ventilated Driver & Front Passenger Seats
    • Ventilated front seats
    • Passenger door bin
    • In-Vehicle Trailering System App
    • Alloy wheels
    • Wheels: 20" x 9" Multi-Dimensional Polished Alum
    • Power Sliding Rear Window w/Rear Defogger
    • Rain sensing wipers
    • Variably intermittent wipers
    • 3.23 Rear Axle Ratio
    • Preferred Equipment Group 5SA
    • Trailering Package
    • Premium Bose 7-Speaker Sound System
    • Radio: Premium GMC Infotainment Audio System
    • Steering Wheel Audio Controls
    • Electric Rear-Window Defogger
    • 120-Volt Bed Mounted Power Outlet
    • 120-Volt Interior Power Outlet
    • Driver Memory
    • Push Button Start
    • Remote Vehicle Starter System
    • Universal Home Remote
    • Auto-Locking Rear Differential
    • Power Door Locks
    • Hill Descent Control
    • Perimeter Lighting
    • 170 Amp Alternator
    • Auxiliary External Transmission Oil Cooler
    • Heavy-Duty Air Filter
    • LED Cargo Area Lighting
    • Rear Wheelhouse Liners
    • 2 Charge/Data USB Ports Inside Center Console
    • 2 Type-C Charge-Only Rear USB Ports
    • 2 USB Ports
    • Bed View Camera
    • Color-Keyed Carpeting Floor Covering
    • Floor-Mounted Center Console
    • HD Surround Vision
    • OnStar Services Capable
    • Rear Cross Traffic Braking
    • Rear Pedestrian Detection
    • Trailer Camera Provisions
    • Trailer Side Blind Zone Alert
    • Wi-Fi Hotspot Capable
    • Wireless Apple CarPlay/Wireless Android Auto
    • Wireless Charging
    • Front Bucket Seats
    • Heated 2nd Row Outboard Seats
    • Chrome Recovery Hooks
    • Hitch Guidance
    • Hitch View
    • Integrated Trailer Brake Controller
    • Deep-Tinted Glass
    • Front Rain-Sensing Wipers

    Included Packages & Options

    Included Options
    • Power Sunroof$995
    • Dual Active Exhaust$395

    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: OnStar
    • Front beverage holders
    • Front dual zone A/C
    • Garage door transmitter
    • Heated steering wheel
    • Illuminated entry
    • Memory seat
    • Navigation system
    • 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
    • Remote keyless entry
    • Speed control
    • Surround View Monitor: HD Surround Vision w/Hitch View yes
    • Telescoping steering wheel
    • Tilt steering wheel
    • Adaptive suspension
    • Alloy wheels
    • Front anti-roll bar
    • Front wheel independent suspension
    • Power steering
    • Speed-sensing steering
    • Tires: all-terrain
    • 1st row LCD monitors: 2
    • Primary LCD size: 13.4"
    • Radio data system
    • 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 console insert
    • Genuine wood dashboard insert
    • Genuine wood door panel insert
    • Heated front seats
    • Heated rear seats
    • Leather upholstery
    • Max seating capacity: 5
    • Power 4-way driver lumbar support
    • Power 4-way passenger lumbar support
    • 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 deactivation
    • Drive type: four-wheel
    • Engine location: front
    • Fuel economy city: 15mpg
    • Fuel economy combined: 17mpg
    • Fuel economy highway: 19mpg
    • Fuel tank capacity: 24.0gal.
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Rear locking differential
    • Transmission: 10 speed automatic
    • Variable valve control
    • Approach angle: 19 deg
    • Departure angle: 24 deg
    • Ground clearance (min): 206mm (8.1")
    • Ramp breakover angle: 18 deg
    • 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
    • Tailpipe finisher: chrome
    • Trailer hitch
    • Trailer sway control
    • Exterior body width: 2,063mm (81.2")
    • Exterior height: 1,918mm (75.5")
    • Exterior length: 5,890mm (231.9")
    • Front headroom: 1,092mm (43.0")
    • Front hiproom: 1,544mm (60.8")
    • Front legroom: 1,131mm (44.5")
    • Front shoulder room: 1,638mm (64.5")
    • Greenhouse Gas Score (GG): 3
    • Rear headroom: 1,019mm (40.1")
    • Rear hiproom: 1,505mm (59.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,656mm (65.2")
    • Turning radius: 7.1m (23.5')
    • Wheelbase: 3,744mm (147.4")
    • Appearance: 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 Keep Assist with Lane Departure Warning active
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: Front and Rear Park Assist 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 Braking mitigation
    • Security system
    • Traction control

    Standard Features

    • Rear Cross Traffic Braking
    • Rear Pedestrian Detection
    • Premium Bose 7-Speaker Sound System
    • Floor-Mounted Center Console
    • Electric Rear-Window Defogger
    • Power Door Locks
    • Push Button Start
    • Remote Vehicle Starter System
    • Color-Keyed Carpeting Floor Covering
    • OnStar Services Capable
    • Wi-Fi Hotspot Capable
    • 120-Volt Interior Power Outlet
    • 2 Type-C Charge-Only Rear USB Ports
    • 2 USB Ports
    • 2 Charge/Data USB Ports Inside Center Console
    • HD Surround Vision
    • Trailer Side Blind Zone Alert
    • Trailer Camera Provisions
    • Bed View Camera
    • Heated 2nd Row Outboard Seats
    • Steering Wheel Audio Controls
    • Universal Home Remote
    • Wireless Charging
    • Deep-Tinted Glass
    • LED Cargo Area Lighting
    • Perimeter Lighting
    • Chrome Recovery Hooks
    • Rear Wheelhouse Liners
    • Front Rain-Sensing Wipers
    • Trailering Package
    • Hitch View
    • 170 Amp Alternator
    • Heavy-Duty Air Filter
    • Auxiliary External Transmission Oil Cooler
    • Auto-Locking Rear Differential
    • Hill Descent Control
    • Integrated Trailer Brake Controller
    • 120-Volt Bed Mounted Power Outlet
    • Driver Memory
    • Hitch Guidance
    • Premium Bose 7-Speaker Sound System
    • Wireless Apple CarPlay/Wireless Android Auto

    Dealer Notes

    2025 GMC SIERRA 1500 DENALI 4WD 6.2L V8 ONYX BLACK 22-INCH WHEELS LANCASTER PA

    BLACKED-OUT DENALI LUXURY WITH REAL V8 MUSCLE

    This 2025 GMC Sierra 1500 Denali 4WD in Onyx Black is the definition of premium truck dominance. Powered by the legendary EcoTec3 6.2L V8 paired with a 10-Speed Automatic transmission, this Sierra delivers serious horsepower, smooth towing capability, and Denali-level refinement.

    Finished off with aggressive 22-inch wheels, this truck has the presence buyers search for.

    This is not a standard pickup.
    This is Denali power and luxury done right.

    6.2L V8 PERFORMANCE + DENALI CAPABILITY

    • EcoTec3 6.2L V8 engine
    • 10-Speed Automatic transmission
    • 4WD with auto-locking rear differential
    • Auxiliary external transmission oil cooler
    • Hill Descent Control
    • Integrated trailer brake controller
    • Hitch guidance + hitch view

    Built to tow, travel, and command the road.

    DENALI PREMIUM EXTERIOR PRESENCE

    • Signature Denali chrome grille
    • Chrome recovery hooks
    • Chrome wheel-to-wheel assist steps
    • Deep-tinted glass
    • LED cargo bed lighting
    • Spray-in bedliner with GMC logo
    • Onyx Black finish with upgraded 22-inch wheels

    LUXURY INTERIOR COMFORT

    • Jet Black perforated leather-appointed seating
    • Heated and ventilated front seats
    • Heated second-row outboard seats
    • Power sunroof
    • Power-adjustable steering column
    • Universal home remote

    TECHNOLOGY + DRIVER ASSIST

    • HD Surround Vision
    • Bed View Camera + trailer camera provisions
    • Navigation system
    • Rear cross-traffic braking
    • Rear pedestrian detection
    • Ultrasonic front and rear park assist
    • Wireless charging + Wi-Fi hotspot capable
    • Premium Bose 7-speaker audio system

    WHY THIS 2025 SIERRA DENALI STANDS OUT

    This Sierra delivers the full package:
    6.2L V8 power, Denali luxury, upgraded wheel presence, and advanced towing technology in one of the most desirable full-size trucks on the market.

    Big V8. Bold Denali style. 22-inch stance. No compromises.

    AVAILABLE NOW AT MARK MARTIN MOTORS LANCASTER, PENNSYLVANIA

    Serving truck buyers across Central PA, Harrisburg, York, Reading, and the Mid-Atlantic region.

    NO HAGGLE PRICING - 106 POINT CERTIFIED INSPECTION FINANCING AVAILABLE NATIONWIDE - WE WELCOME YOUR TRADES NO PRICING GAMES WITH HIDDEN FEES! CALL US FOR YOUR OUT THE DOOR PRICE. Call Us Today @ 717-664-2222! We are located in Lancaster PA near Harrisburg and Philadelphia. Disclaimer: We do our best to make sure this information is accurate; however, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Mark Martin Motors.

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall4Out of 5

    • Nice truck

      By froggy on Sunday, December 06, 2020

      3.0
      I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.…

    • Great Truck

      By Mel on Sunday, April 25, 2021

      5.0
      I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.…

    • Well done GM

      By Tony on Thursday, November 26, 2020

      5.0
      This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!…
    Based on 89 consumer ratings for 2019–2026 models. | Privacy
    Price
    $60,700
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