2021 GMC Sierra 1500 Denali Truck Crew Cab

  • Used
$34,997Price
$35,476Final Price
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Northwest Hills Chrysler Jeep Dodge Ram
Location Details
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    The overview

    Exterior Color
    Cayenne Red Tintcoat
    Interior Color
    Jet Black
    Odometer
    84,436 miles
    Body/Seating
    Truck Crew Cab/5 seats
    Seats
    5 seats
    Fuel Economy
    16/22 MPG City/Hwy
    Transmission
    10-Speed Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    3GTU9FED0MG175579
    Stock Number
    X26-739A

      The highlights

      • Navigation system
      • Leather upholstery
      • Automatic temperature control
      • Premium audio system
      • Wireless phone connectivity
      • Parking sensors
      • Front dual zone A/C
      • Auto-dimming rearview mirror
      • Split folding rear seat
      • Memory seat
      • Heated front seats
      • Ventilated front seats

      A closer look at what’s included

      Technology Package

      • HD Surround Vision w/2 Trailer View Camera Provisions
        Provides the driver with an overhead view of the scene around the vehicle on a center stack display.
      • Rear Camera Mirror
        Inside rearview auto-dimming with full camera display.
      • Bed View Camera
        Camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen. Includes 2 trailer camera provisions.
      • Multicolor 15" Diagonal Head-Up Display

      Driver Alert Package II

      • Forward Collision Alert
      • Lane Keep Assist w/Lane Departure Warning
      • Automatic Emergency Braking
      • Front Pedestrian Braking

      Preferred Equipment Group 5SA

      • Driver Alert Package I
      • Safety Alert Seat
      • Radio: Premium GMC Infotainment Sys w/Navigation
        Includes 8" diagonal 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, advanced voice recognition, in-vehicle apps, personalized profiles for Infotainment and vehicle settings and greater memory.
      • Floor-Mounted Center Console
        Includes cup holders, cell phone storage, power cord management and hanging file holder capability.

      Radio: Premium GMC Infotainment Sys w/Navigation

      • Premium Bose 7-Speaker Sound System
        Includes Richbass woofer.
      • SiriusXM w/360L
        Enjoy a trial subscription of the All Access package for the full 360L experience, with a greater variety of SiriusXM content, a more personalized experience and easier navigation. With the All Access package, you can also enjoy your favorites everywhere you go, with the SiriusXM app, online and at home on compatible connected devices. Important: the SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM customer agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.

      Front Bucket Seats

      • 10-Way Power Driver Seat Adjuster w/Lumbar
      • 10-Way Power Passenger Seat Adjuster w/Lumbar
      • Driver Memory
        Recalls driver presets for power driver seat and outside mirrors.

      Driver Alert Package I

      • Ultrasonic Front & Rear Park Assist
      • Lane Change Alert w/Side Blind Zone Alert
      • Rear Cross Traffic Alert

      120-Volt Instrument Panel Power Outlet

      • 120-Volt Bed Mounted Power Outlet
        400 watts shared with (KI4) instrument panel mounted power outlet.

      Trailering Package

      • Hitch Guidance

      ProGrade Trailering System

      • Hitch Guidance w/Hitch View
        Includes image adjustment, pan/zoom/tilt.
      • In-Vehicle Trailering App
        Includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder and trailer electrical diagnostics.

      More pre-installed items

      • Navigation System
      • 7 Speakers
      • AM/FM radio: SiriusXM with 360L
      • Premium audio system: GMC Infotainment System
      • 1-touch down
      • 1-touch up
      • Air conditioning
      • Auto-dimming rearview mirror
      • Automatic temperature control
      • Driver door bin
      • Driver vanity mirror
      • 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: keyfob
      • Remote keyless entry
      • Speed control
      • 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
      • Premium audio system: GMC Infotainment System
      • Primary LCD size: 8.0"
      • Radio data system
      • Smart device integration: Android Auto/Apple CarPlay
      • Speaker type: Bose
      • Speakers: 7
      • Steering wheel mounted audio controls
      • Wireless phone connectivity: Bluetooth
      • Front center armrest
      • Front seats: bucket
      • Genuine wood console insert
      • Genuine wood door panel insert
      • Heated front seats
      • Leather upholstery
      • Max seating capacity: 5
      • Power 2-way driver lumbar support
      • Power 2-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: 16mpg
      • Fuel economy combined: 19mpg
      • Fuel economy highway: 22mpg
      • Fuel tank capacity: 24.0gal.
      • 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): 205mm (8.1")
      • Auto-dimming door mirrors
      • Bedliner
      • Bumpers: body-color
      • Door mirrors: chrome
      • Heated door mirrors
      • Left rear passenger door: conventional
      • Power door mirrors
      • Rear cargo: tailgate
      • Rear step bumper
      • Right rear passenger: conventional
      • Trailer hitch receiver
      • Trailer sway control
      • Exterior body width: 2,063mm (81.2")
      • Exterior height: 1,918mm (75.5")
      • Exterior length: 5,885mm (231.7")
      • 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: 1,655mm (65.2")
      • Wheelbase: 3,744mm (147.4")
      • Appearance: analog
      • Blind spot: Trailer Side Blind Zone Alert warning
      • Compass
      • Delay-off headlights
      • Front fog lights
      • Front reading lights
      • Fully automatic headlights
      • Low tire pressure warning
      • Oil pressure gauge
      • Outside temperature display
      • Parking sensors: Front and Rear Park Assist front and rear
      • 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
      • Ignition disable
      • Occupant sensing airbag
      • Overhead airbag
      • Panic alarm
      • Perimeter/approach lights
      • Rear collision: Rear Cross-Traffic Alert warning
      • Security system
      • Traction control
      2021 GMC Sierra 1500 Denali
      This 2021 GMC Sierra 1500 Denali delivers premium luxury, advanced technology, and impressive truck capability. Equipped with Adaptive Ride Control, Adaptive Cruise Control, Technology Package, 15" Head-Up Display, HD Surround Vision, power sunroof, Bose premium audio, heated and ventilated leather seating, and ProGrade Trailering, this Denali is exceptionally well equipped.
      DENALI LUXURY & COMFORT
      • Forge Perforated Leather-Appointed Seating
      • Heated & Ventilated Front Seats
      • Heated 2nd-Row Outboard Seats
      • Heated Steering Wheel
      • 10-Way Power Driver & Passenger Seats with Lumbar
      • Driver Memory
      • Dual-Zone Automatic Climate Control
      • Power Sunroof
      • Genuine Wood Interior Trim
      • Power Sliding Rear Window with Defogger
      • Remote Vehicle Start
      • Chrome Wheel-to-Wheel Assist Steps
      • Signature Denali Grille
      • 20" Multi-Dimensional Polished Aluminum Wheels
      PREMIUM TECHNOLOGY
      • 15" Multicolor Head-Up Display
      • GMC Infotainment System with Navigation
      • Bose® Premium 7-Speaker Sound System
      • Rear Camera Mirror
      • Wireless Apple CarPlay® & Android Auto™
      • Wireless Phone Charging
      • SiriusXM® with 360L
      • 4G LTE Wi-Fi Hotspot Capability
      • 120-Volt Interior & Bed Power Outlets
      SAFETY & DRIVER ASSISTANCE
      • Adaptive Cruise Control
      • HD Surround Vision
      • Bed View Camera
      • Automatic Emergency Braking
      • Forward Collision Alert
      • Lane Keep Assist with Lane Departure Warning
      • Lane Change Alert with Side Blind Zone Alert
      • Rear Cross Traffic Alert
      • Front Pedestrian Braking
      • Front & Rear Park Assist
      • Following Distance Indicator
      • IntelliBeam® Automatic High Beams
      • Safety Alert Seat
      TRAILERING & TRUCK CAPABILITY
      • ProGrade Trailering System
      • Trailering Package
      • Integrated Trailer Brake Controller
      • In-Vehicle Trailering App
      • Hitch Guidance with Hitch View
      • Trailer View Camera Provisions
      • Auto-Locking Rear Differential
      • 3.23 Rear Axle Ratio
      • Adaptive Ride Control Suspension
      • Hill Descent Control
      • Heavy-Duty Air Filter
      • Spray-On Bedliner with Denali Logo
      • Chrome Recovery Hooks
      • LED Cargo Area Lighting
      With its Denali luxury, Adaptive Ride Control, premium leather interior, advanced camera technology, Head-Up Display, Bose audio, and ProGrade trailering equipment, this 2021 GMC Sierra 1500 Denali offers an outstanding combination of refinement, technology, and truck capability.
      Say Yes to Sullivan! Our Dealer Conveyance Fee is only $479!

      KBB.com Consumer Reviews

      Kelley Blue Book Logo4.0out of 5 overall
      • 4.0

        Depreciation of 50%

        by Manny A on 10/28/2026 10:06:36 AM

        This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again.…
      • 5.0

        2021 GMC SLT 4WD SIERRA, Great Truck

        by Ransom1 on 10/15/2026 4:18:42 PM

        This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime.…
      • 5.0

        Great 4 cylinder truck

        by Steve on 9/23/2026 2:01:15 AM

        I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.…
      All reviews on KBB.com
      Based on 71 consumer ratings for 2019–2026 models. Privacy
        While Sullivan Automotive tries to make sure all information posted here is accurate, we cannot be responsible for typographical and other errors (e.g., data transmission) that may appear on the site. If the posted price (including finance and lease payments) for a vehicle is incorrect, Sullivan will endeavor to provide you with the correct prices as soon as we become aware of the error. In the event a vehicle is priced incorrectly, Sullivan shall have the right to refuse or cancel any orders placed for the vehicle presented with the incorrect price. In addition, vehicle prices are subject to change, and all vehicles are subject to prior sale and may not be available when you are ready to purchase.