Home / Pre-Owned Inventory / Used / 2021 / GMC / Sierra 1500 / SLT / 3GTU9DETXMG312720
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Used 2021 GMC Sierra 1500 SLT

VIN: 3GTU9DETXMG312720
Stock #: MG312720

86,846 mi.

Vehicle Details

Engine: 3.0L I6
Exterior Color:Onyx Black
Interior Color:Jet Black
Mileage: 86,846 mi
MPG:22/26 (City/Hwy)
Drivetrain:Four Wheel Drive
Transmission:10-Speed Automatic
Fuel Type:Diesel
Price
$36,995
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Description

10-Speed Automatic, 4WD, Jet Black Leather. Onyx Black 2021 GMC Sierra 1500 SLT 4WD 10-Speed Automatic 3.0L I6

Equipped with Driver Alert Package I (Lane Change Alert w/Side Blind Zone Alert, Perimeter Lighting, Rear Cross Traffic Alert, and Ultrasonic Front & Rear Park Assist), Driver Alert Package II (Adaptive Cruise Control, Automatic Emergency Braking, Following Distance Indicator, Forward Collision Alert, Front Pedestrian Braking, IntelliBeam Automatic High Beam On/Off, Lane Keep Assist w/Lane Departure Warning, and Safety Alert Seat), Preferred Equipment Group 4SA (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 4G LTE Wi-Fi Hotspot Capable, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Chrome Grille, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Front Frame-Mounted Black Recovery Hooks, GMC Connected Access Capable, Heated Driver & Front Outboard Passenger Seating, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, ProGrade Trailering System, Rear Dual USB Charging-Only Ports, Rear Wheelhouse Liners, Remote Vehicle Starter System, Steering Wheel Audio Controls, and Theft Deterrent System (Unauthorized Entry)), SLT Convenience Package (2 USB Ports (1st Row), Floor-Mounted Center Console, Front Bucket Seats, Heated 2nd Row Outboard Seats, Power Sliding Rear Window w/Rear Defogger, Universal Home Remote, and Ventilated Driver & Front Passenger Seats), SLT Preferred Package (Premium Bose 7-Speaker Sound System, Radio: Premium GMC Infotainment Sys w/Navigation, SiriusXM w/360L, and Wireless Charging), SLT Premium Plus Package (20″ x 9″ Polished Aluminum Wheels, Chrome Wheel To Wheel Assist Steps, and Spray-On Pickup Bed Liner w/GMC Logo), Technology Package (8″ Driver Information Center, Bed View Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Multicolor 15″ Diagonal Head-Up Display, and Rear Camera Mirror), Trailering Package (Hitch Guidance), X31 Off-Road Package (Dual Exhaust w/Premium Tips, Heavy-Duty Air Filter, Hill Descent Control, Off-Road Suspension, and X31 Hard Badge), 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 220 Amp Alternator, 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Acknowledgement: CWM Tech Pkg requires DQS Mirrors, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Brake assist, Bumpers: chrome, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Engine Block Heater, Front 40/20/40 Split-Bench Seat, Front anti-roll bar, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated front seats, Heated steering wheel, Heavy Duty Suspension, Illuminated entry, Low tire pressure warning, Memory seat, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perf Leather-Appointed Front Outboard Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio system: GMC Infotainment System, Pwr-Ad
  • ONYX BLACK
  • JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEAT TRIM
  • ENGINE, DURAMAX 3.0L TURBO-DIESEL I6

Standard Features

  • Driver Alert Package I
  • Driver Alert Package II
  • Preferred Equipment Group 4SA
  • SLT Convenience Package
  • SLT Preferred Package
  • SLT Premium Plus Package
  • Technology Package
  • Trailering Package
  • X31 Off-Road Package
  • 6 Speakers
  • 6-Speaker Audio System Feature
  • AM/FM radio: SiriusXM with 360L
  • Premium audio system: GMC Infotainment System
  • Premium Bose 7-Speaker Sound System
  • Radio data system
  • Radio: Premium GMC Infotainment Sys w/Multi-Touch
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • SiriusXM w/360L
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 12-Volt Rear Auxiliary Power Outlet
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • Driver Memory
  • 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
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • Auto-Locking Rear Differential
  • Electrical Lock Control Steering Column
  • Heavy Duty Suspension
  • Manual Tilt-Wheel & Telescoping Steering Column
  • Off-Road Suspension
  • 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
  • Keyless Open & Start
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Power Door Locks
  • Brake assist
  • Electronic Stability Control
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Perimeter Lighting
  • Dual Exhaust w/Premium Tips
  • Panic alarm
  • Security system
  • Theft Deterrent System (Unauthorized Entry)
  • Adaptive Cruise Control
  • Speed control
  • 170 Amp Alternator
  • 220 Amp Alternator
  • Auxiliary External Transmission Oil Cooler
  • Engine Block Heater
  • Heavy-Duty Air Filter
  • Auto-dimming door mirrors
  • Bumpers: chrome
  • Chrome Grille
  • Chrome Wheel To Wheel Assist Steps
  • Front License Plate Kit
  • Heated door mirrors
  • IntelliBeam Automatic High Beam On/Off
  • LED Cargo Area Lighting
  • Power door mirrors
  • ProGrade Trailering System
  • Pwr-Adjustable Vertical Trailering Outside Mirrors
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-On Pickup Bed Liner w/GMC Logo
  • X31 Hard Badge
  • 2 USB Ports (1st Row)
  • 4G LTE Wi-Fi Hotspot Capable
  • 8″ Driver Information Center
  • Acknowledgement: CWM Tech Pkg requires DQS Mirrors
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Automatic Emergency Braking
  • Bed View Camera
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Following Distance Indicator
  • Forward Collision Alert
  • Front Pedestrian Braking
  • Front reading lights
  • GMC Connected Access Capable
  • HD Surround Vision w/2 Trailer View Camera Provisions
  • Heated steering wheel
  • Illuminated entry
  • 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
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Camera Mirror
  • Rear Cross Traffic Alert
  • Rear Dual USB Charging-Only Ports
  • 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
  • Wireless Charging
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Front 40/20/40 Split-Bench Seat
  • Front Bucket Seats
  • Heated 2nd Row Outboard Seats
  • Heated Driver & Front Outboard Passenger Seating
  • Heated front seats
  • Perf Leather-Appointed Front Outboard Seat Trim
  • Power passenger seat
  • Split folding rear seat
  • Ventilated Driver & Front Passenger Seats
  • Front Center Armrest w/Storage
  • Passenger door bin
  • Front Frame-Mounted Black Recovery Hooks
  • Hitch Guidance
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering App
  • Integrated Trailer Brake Controller
  • 20″ x 9″ Polished Aluminum Wheels
  • Alloy wheels
  • Wheels: 18″ x 8.5″ 6-Spoke Machined Aluminum
  • Deep-Tinted Glass
  • Power Sliding Rear Window w/Rear Defogger
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio

Vehicle Location

Monumental Ford
13452 GA-251
Darien, GA 31305

VEHICLE DATA

Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’). © 2025 Chrome Data Solutions, LP. All Rights Reserved. This information is supplied for personal use only and may not be used for any commercial purpose whatsoever without the express written consent of Chrome Data. Chrome Data makes no guarantee or warranty, either expressed or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

ESTIMATE MPG

EPA mileage ratings are supplied by Chrome Data Solutions, LP for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.

Based on 2019 EPA mileage ratings. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery-pack age/condition, and other factors.

PRICING

Our prices include all applicable manufacturer rebates available at the time you are shopping. Any additional rebates you may qualify for—such as the Military Recognition or First Responder Recognition—are yours to use as you wish, whether to further reduce your purchase price or keep for yourself. (We appreciate all active service members and public service professionals for their dedication and sacrifice.)

All pricing is valid when financing is arranged through the dealership at competitive rates, either through Ford Motor Credit or one of our affiliated finance sources. Please note that some rebates and low APR offers from Ford Motor Credit require financing through Ford Motor Credit.

All internet prices are plus tax, tag, title, registration, and a documentation fee of $999 which is not included in the sales price. Monumental Ford reserves the right to sell new Ford vehicles to retail customers only—we do not sell to wholesalers or other dealers.

Our prices include any and all applicable rebates that the manufacturer offers at the time you are looking. Any other rebates that you may qualify for that come from Ford are yours to keep or use to further reduce the price such as the Military Recognition or the First Responder Recognition. (We appreciate all active service members in all public service fields and that’s why it’s yours to use as you wish). All of our prices are valid with financing options provided thru the dealership at competitive rates either thru Ford Motor Credit or one of the dealerships affiliate finance sources. Some rebates and low APR programs offered thru Ford Motor Credit require financing thru Ford Motor Credit. All internet prices are plus tax, tag, title and registration. Monumental Ford reserves the right to sell new Fords to “retail customers” only. We do not sell to wholesalers or other dealers.

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