Home / Pre-Owned Inventory / Used / 2021 / GMC / Sierra 2500HD / AT4 / 1GT49PEY8MF176599
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Used 2021 GMC Sierra 2500HD AT4

VIN: 1GT49PEY8MF176599
Stock #: 25T2540B

55,362 mi.

Vehicle Details

Trans.:10-Speed Automatic
Drivetrain:Four Wheel Drive
Engine: Duramax 6.6L V8 Turbodiesel
Fuel Type:Diesel
Ext. Color:Onyx Black
Int. Color:Jet Black With Kalahari Accents

$60,998

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Description

This 2021 GMC Sierra 2500HD AT4 in Onyx Black includes the following features: Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD AT4 Preferred Package (Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, HD Surround Vision, LED Smoked Amber Roof Marker Lamps, Power Sliding Rear Window w/Defogger, Radio: Premium GMC Infotainment Sys w/Navigation, Universal Home Remote, and Wireless Charging), AT4 Premium Plus Package (20″ Machined Aluminum Wheels, AT4 High Clearance Step (LPO), and Power Sunroof), Driver Alert Package I (Lane Change Alert w/Side Blind Zone Alert, Rear Cross Traffic Alert, and Ultrasonic Front & Rear Park Assist), Driver Alert Package II (Automatic Emergency Braking, Following Distance Indicator, Forward Collision Alert, IntelliBeam Automatic High Beam On/Off, Lane Departure Warning System, and Safety Alert Seat), Preferred Equipment Group 4SB (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2″ Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Compass Located In Instrument Cluster, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Front Prem Floor Liners w/Removable Carpet Insert, GMC Connected Access Capable, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Painted Black Surround Grille, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Rear Windows w/Express Down, Power Windows w/Driver Express Up/Down, Rear Prem Floor Liners w/Removable Carpet Insert, Rear Wheelhouse Liners, Remote Vehicle Starter System, Spray-On Pickup Box Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, and Wireless Phone Projection), Technology Package (8″ Multicolor Driver Information Center, Inside Rearview Auto-Dimming Rear Camera Mirror, and Multicolor 15″ Diagonal Head-Up Display), X31 Off-Road Package (Hill Descent Control), 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 18″ Machined Aluminum Wheels, 220 Amps Alternator, 4-Wheel Disc Brakes, 5th Wheel & Gooseneck Trailer Wiring Provisions, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, 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: body-color, Compass, 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, Exhaust Brake, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, HD Radio, Heated door mirrors, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Low tire pressure warning, Memory seat, Occupant sensing airbag, Off-Road Suspension, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Pickup Box, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio system: Premium GMC Infotainment System, Radio: AM/FM w/Premium GMC Infot
  • ONYX BLACK
  • JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT LEATHER SEAT TRIM
  • ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE

Standard Features

  • Preferred Equipment Group 4SB
  • 18″ Machined Aluminum Wheels
  • 20″ Machined Aluminum Wheels
  • Perforated Leather-Appointed Front Seat Trim
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • Driver Alert Package I
  • Driver Alert Package II
  • Technology Package
  • Radio: AM/FM w/Premium GMC Infotainment System
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • Electric Rear-Window Defogger
  • Front Prem Floor Liners w/Removable Carpet Insert
  • OnStar & GMC Connected Services Capable
  • 120-Volt Instrument Panel Power Outlet
  • Bed View Camera w/2 Trailer Camera Provisions
  • Power Sunroof
  • Spray-On Pickup Box Bed Liner w/AT4 Logo
  • Deep-Tinted Glass
  • Front License Plate Kit
  • LED Smoked Amber Roof Marker Lamps
  • LED Cargo Area Lighting
  • Pickup Box
  • AT4 High Clearance Step (LPO)
  • Integrated Trailer Brake Controller
  • 5th Wheel & Gooseneck Trailer Wiring Provisions
  • 220 Amps Alternator
  • Engine Block Heater
  • Off-Road Suspension
  • 2-Speed Active Transfer Case
  • Inside Rearview Auto-Dimming Rear Camera Mirror
  • SiriusXM w/360L
  • Driver Memory
  • Power Sliding Rear Window w/Defogger
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • GMC Connected Access Capable
  • Power Front Passenger Windows w/Express Up/Down
  • Power Rear Windows w/Express Down
  • Keyless Open & Start
  • Power Door Locks
  • Power Windows w/Driver Express Up/Down
  • Rear Wheelhouse Liners
  • Winter Grille Cover
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Remote Vehicle Starter System
  • Compass Located In Instrument Cluster
  • Floor-Mounted Center Console
  • Painted Black Surround Grille
  • Safety Alert Seat
  • Hill Descent Control
  • Exhaust Brake
  • Wireless Charging
  • Heated Driver & Front Outboard Passenger Seats
  • Heated 2nd Row Outboard Seats
  • 120-Volt Bed Mounted Power Outlet
  • 12-Volt Rear Auxiliary Power Outlet
  • Heated & Ventilated Front Bucket Seats
  • Heavy-Duty 80 Amp Battery
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel/Telescoping Steering Column
  • ProGrade Trailering System
  • Hitch Guidance w/Hitch View
  • IntelliBeam Automatic High Beam On/Off
  • In-Vehicle Trailering System App
  • HD Radio
  • Ultrasonic Front & Rear Park Assist
  • 4.2″ Diagonal Color Display Driver Info Center
  • Following Distance Indicator
  • Forward Collision Alert
  • Rear Cross Traffic Alert
  • Lane Departure Warning System
  • Universal Home Remote
  • 8″ Multicolor Driver Information Center
  • Automatic Emergency Braking
  • Steering Wheel Audio Controls
  • Lane Change Alert w/Side Blind Zone Alert
  • Bose Premium 7 Speaker Sound System
  • 6-Speaker Audio System Feature
  • 2nd Row Dual USB Charge-Only Ports
  • Unauthorized Entry Theft-Deterrent System
  • Multicolor 15″ Diagonal Head-Up Display
  • HD Rear Vision Camera
  • HD Surround Vision
  • 4G LTE Wi-Fi Hotspot Capable
  • Wireless Phone Projection
  • X31 Off-Road Package
  • 4-Wheel Disc Brakes
  • Apple CarPlay/Android Auto
  • Premium audio system: Premium GMC Infotainment System
  • AM/FM radio: SiriusXM with 360L
  • Compass
  • Auto-dimming Rear-View mirror
  • Ventilated front seats
  • Variably intermittent wipers
  • Turn signal indicator mirrors
  • Trip computer
  • Traction control
  • Tilt steering wheel
  • Telescoping steering wheel
  • Steering wheel mounted audio controls
  • Split folding rear seat
  • Speed-sensing steering
  • Speed control
  • Security system
  • Remote keyless entry
  • Rear window defroster
  • Rear step bumper
  • Rear seat center armrest
  • Rear reading lights
  • Power windows
  • Power steering
  • Power passenger seat
  • Power driver seat
  • Power door mirrors
  • Passenger vanity mirror
  • Passenger door bin
  • Panic alarm
  • Overhead console
  • Overhead airbag
  • Outside temperature display
  • Occupant sensing airbag
  • Memory seat
  • Low tire pressure warning
  • Illuminated entry
  • Heated steering wheel
  • Heated rear seats
  • Heated front seats
  • Heated door mirrors
  • Fully automatic headlights
  • Front wheel independent suspension
  • Front reading lights
  • Front fog lights
  • Front dual zone A/C
  • Front anti-roll bar
  • Dual front side impact airbags
  • Dual front impact airbags
  • Driver vanity mirror
  • Driver door bin
  • Delay-off headlights
  • Bumpers: body-color
  • Brake assist
  • Automatic temperature control
  • Auto-dimming door mirrors
  • Alloy wheels
  • ABS brakes
  • Voltmeter
  • Tachometer
  • Front Center Armrest
  • Front Bucket Seats
  • Electronic Stability Control
  • Air Conditioning
  • 6 Speakers

Vehicle Location

Mac Haik Southway Ford
7979 IH-35 South
San Antonio, TX 78224

VEHICLE DATA
Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’). Ā© 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
Vehicle pricing is believed to be accurate. Tax, title, registration and dealer installed accessories (Texas Asset Protection) are not included in prices shown unless otherwise stated. Manufacturer incentives may vary by region and are subject to change. Vehicle information & features are based upon standard equipment and may vary by vehicle. Monthly payments may be higher or lower based upon incentives, qualifying programs, credit qualifications, residency & fees. No claims, or warranties are made to guarantee the accuracy of vehicle pricing, payments or actual equipment. Call to confirm accuracy of any information.

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