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Used 2021 GMC Sierra 1500 AT4 Truck Crew Cab Photo 1 of 13

Used 2021 GMCSierra 1500 AT4

    Exterior Color
    Dark Sky
    Interior Color
    Jet Black
    Odometer
    43,214 miles
    Body/Seating
    Truck Crew Cab/5 seats
    Fuel Economy
    16/21 MPG City/Hwy
    Transmission
    10-Speed Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    1GTP9EEL5MZ204914
    Stock Number
    T8125A
    GMC Sierra 1500
    • Show Me the CARFAX 1-Owner Badge

    Highlighted Features

    • Leather upholstery
    • Automatic temperature control
    • Wireless phone connectivity
    • Front dual zone A/C
    • Auto-dimming rearview mirror
    • Split folding rear seat
    • Memory seat
    • Heated front seats
    • Ventilated front seats
    • Perimeter/approach lights
    • Remote keyless entry
    • Heated steering wheel

    Included Packages & Accessories

    • 6 Speakers
    • AM/FM radio: SiriusXM with 360L
    • Premium audio system: GMC Infotainment System
    • Radio data system
    • 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
    • Front anti-roll bar
    • Front wheel independent suspension
    • Low tire pressure warning
    • Occupant sensing airbag
    • Overhead airbag
    • Power Sunroof
    • Brake assist
    • Electronic Stability Control
    • Delay-off headlights
    • Front fog lights
    • Fully automatic headlights
    • Panic alarm
    • Security system
    • Theft Deterrent System (Unauthorized Entry)
    • Speed control
    • 220 Amp Alternator
    • Engine Block Heater
    • AT4 High Clearance Step (LPO)
    • Auto-dimming door mirrors
    • Bumpers: body-color
    • Front License Plate Kit
    • Heated door mirrors
    • Power door mirrors
    • Rear step bumper
    • 2 USB Ports (1st Row)
    • Apple CarPlay/Android Auto
    • Auto-dimming Rear-View mirror
    • Driver door bin
    • Driver vanity mirror
    • Front reading lights
    • 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
    • Trip computer
    • Voltmeter
    • Front Center Armrest
    • Heated front seats
    • Perforated Leather-Appointed Front Seat Trim
    • Power passenger seat
    • Split folding rear seat
    • Ventilated front seats
    • Passenger door bin
    • 18" x 8.5" Machined Aluminum Wheels
    • Alloy wheels
    • Wheel Locks (Set of 4) (LPO)
    • Wheels: 20" x 9" Machined Aluminum
    • Variably intermittent wipers
    • 3.23 Rear Axle Ratio
    • AT4 Preferred Package
    • AT4 Premium Package
    • Driver Alert Package I
    • Driver Alert Package II
    • Preferred Equipment Group 4SB
    • Technology Package
    • Trailering Package
    • 6-Speaker Audio System Feature
    • Premium Bose 7-Speaker Sound System
    • Radio: Premium GMC Infotainment Sys w/Multi-Touch
    • Radio: Premium GMC Infotainment Sys w/Navigation
    • SiriusXM w/360L
    • Steering Wheel Audio Controls
    • Electric Rear-Window Defogger
    • 12-Volt Rear Auxiliary Power Outlet
    • 120-Volt Bed Mounted Power Outlet
    • 120-Volt Instrument Panel Power Outlet
    • Driver Memory
    • Power Front Passenger Windows w/Express Up/Down
    • Power Front Windows w/Driver Express Up/Down
    • Power Rear Windows w/Express Down
    • Remote Vehicle Starter System
    • Universal Home Remote
    • Auto-Locking Rear Differential
    • Electrical Lock Control Steering Column
    • Manual Tilt-Wheel & Telescoping Steering Column
    • Off-Road Suspension
    • Keyless Open & Start
    • Power Door Locks
    • Hill Descent Control
    • Perimeter Lighting
    • Adaptive Cruise Control
    • 170 Amp Alternator
    • Auxiliary External Transmission Oil Cooler
    • Heavy-Duty Air Filter
    • Body-Color Surround Grille
    • IntelliBeam Automatic High Beam On/Off
    • LED Cargo Area Lighting
    • ProGrade Trailering System
    • Rear Wheelhouse Liners
    • Spray-On Pickup Bed Liner w/AT4 Logo
    • 2 USB Ports
    • 4.2" Diagonal Color Display Driver Info Center
    • 4G LTE Wi-Fi Hotspot Capable
    • 8" Driver Information Center
    • Automatic Emergency Braking
    • Bed View Camera
    • Color-Keyed Carpeting Floor Covering
    • Compass
    • Floor-Mounted Center Console
    • Following Distance Indicator
    • Forward Collision Alert
    • Front Pedestrian Braking
    • Front Prem Floor Liners w/Removable Carpet Insert
    • GMC Connected Access Capable
    • HD Rear Vision Camera
    • HD Surround Vision w/2 Trailer View Camera Provisions
    • Lane Change Alert w/Side Blind Zone Alert
    • Lane Keep Assist w/Lane Departure Warning
    • Multicolor 15" Diagonal Head-Up Display
    • OnStar & GMC Connected Services Capable
    • Rear Camera Mirror
    • Rear Cross Traffic Alert
    • Rear Dual USB Charging-Only Ports
    • Rear Prem Floor Liners w/Removable Carpet Insert
    • Safety Alert Seat
    • Ultrasonic Front & Rear Park Assist
    • Wireless Charging
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Front Bucket Seats
    • Heated Driver & Front Outboard Passenger Seating
    • Ventilated Driver & Front Passenger Seats
    • Hitch Guidance
    • Hitch Guidance w/Hitch View
    • In-Vehicle Trailering App
    • Integrated Trailer Brake Controller
    • Red Recovery Hooks
    • Deep-Tinted Glass
    • Power Sliding Rear Window w/Rear Defogger

    Included Packages & Options

    • AT4 Premium Package$3,700
      • AT4 Preferred Package
      • Driver Alert Package I
    • Technology Package$2,075
      • HD Surround Vision w/2 Trailer View Camera Provisions
      • Rear Camera Mirror
      • Bed View Camera
      • Multicolor 15" Diagonal Head-Up Display
      • 8" Driver Information Center
    • AT4 Preferred Package$1,420
      • Universal Home Remote
      • Power Sliding Rear Window w/Rear Defogger
      • Radio: Premium GMC Infotainment Sys w/Navigation
      • Premium Bose 7-Speaker Sound System
      • Wireless Charging
    • Driver Alert Package II$1,095
      • Forward Collision Alert
      • Lane Keep Assist w/Lane Departure Warning
      • Automatic Emergency Braking
      • Front Pedestrian Braking
      • IntelliBeam Automatic High Beam On/Off
      • Adaptive Cruise Control
      • Following Distance Indicator
      • Safety Alert Seat
    • Driver Alert Package I$890
      • Ultrasonic Front & Rear Park Assist
      • Lane Change Alert w/Side Blind Zone Alert
      • Rear Cross Traffic Alert
      • Perimeter Lighting
    Included Options
    • Power Sunroof$995
    • Engine Block Heater$100
    • Wheels: 20" x 9" Machined Aluminum$800

    Detailed Specifications

    • 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
    • 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
    • Telescoping steering wheel
    • Tilt steering wheel
    • 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: 8.0"
    • Radio data system
    • Smart device integration: Apple CarPlay/Android Auto
    • Steering wheel mounted audio controls
    • Wireless phone connectivity: Bluetooth
    • Front center armrest
    • Front seats: bucket
    • 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: 18mpg
    • Fuel economy highway: 21mpg
    • 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): 276mm (10.9")
    • Auto-dimming door mirrors
    • Bedliner
    • Bumpers: body-color
    • Heated door mirrors
    • Left rear passenger door: conventional
    • Power door mirrors
    • Rear cargo: tailgate
    • Rear step bumper
    • Right rear passenger: conventional
    • Skid plates
    • Trailer hitch receiver
    • Trailer sway control
    • Exterior body width: 2,063mm (81.2")
    • Exterior height: 1,990mm (78.3")
    • 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
    • Compass
    • Delay-off headlights
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • 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
    • Security system
    • Traction control

    Standard Features

    • AT4 Preferred Package
    • Driver Alert Package I
    • HD Surround Vision w/2 Trailer View Camera Provisions
    • Rear Camera Mirror
    • Bed View Camera
    • Multicolor 15" Diagonal Head-Up Display
    • 8" Driver Information Center
    • Universal Home Remote
    • Power Sliding Rear Window w/Rear Defogger
    • Radio: Premium GMC Infotainment Sys w/Navigation
    • Premium Bose 7-Speaker Sound System
    • Wireless Charging
    • Forward Collision Alert
    • Lane Keep Assist w/Lane Departure Warning
    • Automatic Emergency Braking
    • Front Pedestrian Braking
    • IntelliBeam Automatic High Beam On/Off
    • Adaptive Cruise Control
    • Following Distance Indicator
    • Safety Alert Seat
    • Ultrasonic Front & Rear Park Assist
    • Lane Change Alert w/Side Blind Zone Alert
    • Rear Cross Traffic Alert
    • Perimeter Lighting
    • SiriusXM w/360L
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Driver Memory
    • Rear Prem Floor Liners w/Removable Carpet Insert
    • 120-Volt Bed Mounted Power Outlet
    • 6-Speaker Audio System Feature
    • SiriusXM w/360L
    • Radio: Premium GMC Infotainment Sys w/Multi-Touch
    • Floor-Mounted Center Console
    • Compass
    • 4.2" Diagonal Color Display Driver Info Center
    • Electric Rear-Window Defogger
    • Power Door Locks
    • Remote Vehicle Starter System
    • Keyless Open & Start
    • Color-Keyed Carpeting Floor Covering
    • Front Prem Floor Liners w/Removable Carpet Insert
    • OnStar & GMC Connected Services Capable
    • 4G LTE Wi-Fi Hotspot Capable
    • GMC Connected Access Capable
    • 12-Volt Rear Auxiliary Power Outlet
    • 120-Volt Instrument Panel Power Outlet
    • 2 USB Ports
    • Rear Dual USB Charging-Only Ports
    • HD Rear Vision Camera
    • Heated Driver & Front Outboard Passenger Seating
    • Ventilated Driver & Front Passenger Seats
    • Steering Wheel Audio Controls
    • Manual Tilt-Wheel & Telescoping Steering Column
    • Electrical Lock Control Steering Column
    • Power Front Windows w/Driver Express Up/Down
    • Power Front Passenger Windows w/Express Up/Down
    • Power Rear Windows w/Express Down
    • Spray-On Pickup Bed Liner w/AT4 Logo
    • Deep-Tinted Glass
    • Body-Color Surround Grille
    • LED Cargo Area Lighting
    • Red Recovery Hooks
    • Rear Wheelhouse Liners
    • Trailering Package
    • ProGrade Trailering System
    • 170 Amp Alternator
    • Heavy-Duty Air Filter
    • Auxiliary External Transmission Oil Cooler
    • Auto-Locking Rear Differential
    • Hill Descent Control
    • Off-Road Suspension
    • Integrated Trailer Brake Controller
    • Hitch Guidance
    • Hitch Guidance w/Hitch View
    • In-Vehicle Trailering App

    Dealer Notes

    Elevate your driving experience with this exceptional 2021 GMC Sierra 1500 AT4. Boasting a powerful EcoTec3 6.2L V8 engine, this truck delivers exceptional performance and capability, with 420 horsepower and 460 lb-ft of torque. Paired with a smooth-shifting 10-speed automatic transmission and robust 4-wheel drive system, the Sierra AT4 is ready to tackle any terrain with confidence.

    Highlighted features include:
    • AT4 Premium Package
    • Driver Alert Package I and II
    • Technology Package
    • Power Sunroof
    • Multicolor 15" Diagonal Head-Up Display
    • HD Surround Vision with Bed View Camera
    • Rear Camera Mirror
    • Adaptive Cruise Control
    • Automatic Emergency Braking
    • Lane Keep Assist with Lane Departure Warning
    • Front Pedestrian Braking
    • Wireless Charging
    • Ventilated and Heated Front Seats
    • Bose Premium Audio System

    The Sierra AT4's rugged yet refined exterior is highlighted by 20-inch machined aluminum wheels, a bold grille, and a spray-on bedliner with the AT4 logo. Inside, the premium leather-appointed interior and advanced technology features create a truly luxurious and connected driving experience.

    Whether you're tackling the daily commute or exploring the great outdoors, this 2021 GMC Sierra 1500 AT4 is the ultimate blend of power, capability, and sophistication. With its impressive array of advanced safety and convenience features, this truck is ready to elevate your driving experience to new heights.

    We invite you to visit our showroom and experience the exceptional quality and capabilities of this remarkable Sierra AT4 for yourself. Our knowledgeable sales team is here to answer any questions you may have and help you discover why this truck is the perfect fit for your lifestyle. Don't miss your chance to make this impressive Sierra 1500 AT4 your own.

    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 88 consumer ratings for 2019–2026 models. | Privacy
    Base MSRP excludes transportation and handling charges, destination charges, taxes, title, registration, preparation and documentary fees, tags, labor and installation charges, insurance, and optional equipment, products, packages and accessories. Options, model availability and actual dealer price may vary. See dealer for details, costs and terms.

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    Price
    $45,989
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