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  • New Listing
    $47,000
    good price
    $3,342 below market
    • 69,450 miles
    • 6'10” bed, 6.6l, 8cyl
    • Stocker GMC (124 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in State College, PA / 124 miles away from Baltimore, MD

    CARFAX One-Owner. Clean CARFAX. Onyx Black 2021 GMC Sierra 2500HD SLT 4WD 6-Speed Automatic 6.6L V8 6-Speed Automatic, 4WD, Jet Black Leather.We at St...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 1GT49NE70MF228304
    Stock: 500907A
    Certified Pre-Owned: No
    Listed since: 06-04-2025

  • New Listing
    $51,990
    fair price
    $1,366 below market
    • 92,568 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Chicago, IL / 645 miles away from Baltimore, MD

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY0MF318830
    Stock: 2003634758
    Certified Pre-Owned: No
    Listed since: 04-29-2025

  • Price Drop
    $58,998
    good price
    $2,491 below market
    • 47,374 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Reynolds Subaru (108 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Orange, VA / 108 miles away from Baltimore, MD

    Clean CARFAX. Summit White 2023 GMC Sierra 2500HD Denali 4WD 6-Speed Automatic 6.6L V8 **NAVIGATION/GPS**, **SUNROOF/MOONROOF**, **LEATHER**, ** ACCID...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49RE71PF222135
    Stock: 38855P
    Certified Pre-Owned: No
    Listed since: 04-11-2025

  • $65,395
    fair price
    $1,078 below market
    • 50,878 miles
    • No accidents, 2 owners, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Antwerpen Chevrolet (20 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Sykesville, MD / 20 miles away from Baltimore, MD

    CARFAX One-Owner. *MARYLAND STATE INSPECTION*, *CHEVROLET CERTIFIED*, *WARRANTY INCLUDED*, *ADAPTIVE CRUISE CONTROL*, *ADAPTIVE HEADLIGHTS*, *FORWARD ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49PEY3MF245845
    Stock: P3462
    Certified Pre-Owned: No
    Listed since: 04-19-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • 7,112 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Suttle Buick GMC (149 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Newport News, VA / 149 miles away from Baltimore, MD

    Recent Arrival! 2023 GMC Sierra 2500HD Denali Summit White LEATHER, ONE OWNER CLEAN CARFAX, NAVIGATION / GPS, GM 172 POINT INSPECTION, WIFI, Apple Car...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY8PF186825
    Stock: 450511
    Certified Pre-Owned: Yes
    Listed since: 04-25-2025

  • $49,995
    fair price
    $826 below market
    • 78,966 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Crossroads Auto (174 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Maspeth, NY / 174 miles away from Baltimore, MD

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49RE75MF179771
    Stock: 179771
    Certified Pre-Owned: No
    Listed since: 03-07-2025

  • Price Drop
    $45,000
    fair price
    $99 below market
    • 91,226 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Blaise Alexander GMC of Hazelton (121 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazle Township, PA / 121 miles away from Baltimore, MD

    FOR SALE: 2019 GMC Sierra 2500HD SLT AKA THE SILVERBACK Quicksilver Metallic Tougher than your ex's heart and shinier than your future.You dont buy t...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12REY1KF140771
    Stock: ZG1993A
    Certified Pre-Owned: No
    Listed since: 05-24-2025

    • 46,403 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Suttle Buick GMC (149 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Newport News, VA / 149 miles away from Baltimore, MD

    Recent Arrival! 2023 GMC Sierra 2500HD AT4 Summit White LEATHER, ONE OWNER, NAVIGATION / GPS, GM 172 POINT INSPECTION, PANORAMIC ROOF, WIFI, Apple Car...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49PEY0PF135663
    Stock: 450261
    Certified Pre-Owned: Yes
    Listed since: 04-09-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • $45,999
    fair price
    $261 below market
    • 92,045 miles
    • No accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Tom Hesser Chevrolet (156 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Scranton, PA / 156 miles away from Baltimore, MD

    Check out this 2019! An American Icon. The engine breathes better thanks to a turbocharger, improving both performance and economy. Top features inclu...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12REY5KF238766
    Stock: CT25211A
    Certified Pre-Owned: No
    Listed since: 04-19-2025

  • Price Drop
    $38,000
    good price
    $2,657 below market
    • 155,586 miles
    • 1 accident, 3 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Blaise Alexander GMC of Hazelton (121 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazle Township, PA / 121 miles away from Baltimore, MD

    FOR SALE: The Ultimate Road-Dominating Beast 2019 GMC Sierra 2500HD Denali Onyx Black Because your truck should match your coffee and your soul.Are yo...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12SEY3KF234481
    Stock: ZG1830A
    Certified Pre-Owned: No
    Listed since: 05-13-2025

  • Price Drop
    $53,000
    fair price
    $1,570 below market
    • 46,346 miles
    • 1 accident, 1 owner, rental vehicle
    • 6'10” bed, 6.6l, 8cyl
    • Koons Clarksville Chevy GMC (18 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Clarksville, MD / 18 miles away from Baltimore, MD

    Bluetooth, 4X4, 10-Speed Automatic, 4WD, Black Cloth, 2-Speed Electronic Shift Transfer Case, Chrome Surround Grille w/High Gloss Black Mesh, Compass ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49MEY9PF207555
    Stock: KCCP230145
    Certified Pre-Owned: No
    Listed since: 05-28-2025

  • Price Drop
    $62,500
    fair price
    $226 above market
    • 39,836 miles
    • No accidents, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Auto Giants Mitsubishi (57 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Manassas, VA / 57 miles away from Baltimore, MD

    SPRING INTO THE SAVINGS!2023 GMC Sierra 2500HD Denali Onyx BlackKEY FEATURES INCLUDE:, 4WD, APPLE CARPLAY, ANDROID AUTO, ONE OWNER, ACCIDENT FREE CARF...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT19REY3PF209592
    Stock: U2602
    Certified Pre-Owned: No
    Listed since: 05-07-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • New Listing
    $56,000
    fair price
    $345 below market
    • 51,364 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Blaise Alexander GMC of Hazelton (121 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hazle Township, PA / 121 miles away from Baltimore, MD

    FOR SALE: 2019 GMC Sierra 2500HD Denali 4x4 AKA The Silverback Gorilla Powered by Duramax Diesel Fury and fueled by pure testosterone (and diesel). L...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12SEY0KF179066
    Stock: ZG2010A
    Certified Pre-Owned: No
    Listed since: 05-31-2025

  • $58,290
    fair price
    $1,191 below market
    • 52,205 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Spitzer Ford St. Marys (179 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Marys, PA / 179 miles away from Baltimore, MD

    2021 GMC Sierra 2500HD 4D Crew Cab AT4 4WD, One-Owner. Clean CARFAX.*Customer traded in on a new GMC Sierra 1500 Denali, did not need a 2500 anymore*,...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49PE76MF119616
    Stock: 2959SG
    Certified Pre-Owned: No
    Listed since: 05-28-2025

  • New Listing
    Stock photo**
    $60,895
    fair price
    $191 above market
    • 9,950 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Audi Allentown (105 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Allentown, PA / 105 miles away from Baltimore, MD

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49RE7XMF267442
    Stock: 429353454
    Certified Pre-Owned: No
    Listed since: 06-04-2025

  • $50,997
    fair price
    $1,288 above market
    • 85,413 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Fast Lane Car Sales (62 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hagerstown, MD / 62 miles away from Baltimore, MD

    Step into luxury and power with this sleek Black 2021 GMC Sierra 2500HD Denali. With its striking 20'' Multi-Dimensional Polished Aluminum wheels, For...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49RE72MF186418
    Stock: 5217
    Certified Pre-Owned: No
    Listed since: 10-05-2024

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • Price Drop
    $67,500
    fair price
    $3,511 above market
    • 69,225 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Dealers Trade Outlet (67 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Gainesville, VA / 67 miles away from Baltimore, MD

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49PEY0MF261906
    Stock: D8662
    Certified Pre-Owned: No
    Listed since: 12-15-2024

  • $66,750
    fair price
    $1,322 above market
    • 53,975 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 6'10” bed, 6.6l, 8cyl
    • Country Diesels (75 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Warrenton, VA / 75 miles away from Baltimore, MD

    Vehicle Overview 6.6L L5P Duramax Turbo Diesel.. 10 Speed Automatic Allison Transmission.. 53,000 Miles.. 2500 Series.. Crew Cab.. Standard Bed (6.5 f...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49PEY4MF244770
    Stock: S7292
    Certified Pre-Owned: No
    Listed since: 04-18-2025

  • New Listing
    $54,000
    fair price
    $793 above market
    • 76,200 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Rick Hendrick Chevrolet (170 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Norfolk, VA / 170 miles away from Baltimore, MD

    This vehicle is available for transfer from another Hendrick Automotive Group dealership. All vehicles may not be physically located at this dealershi...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12SEY9KF243315
    Stock: PS32637
    Certified Pre-Owned: No
    Listed since: 05-04-2025

  • $61,800
    fair price
    $1,492 below market
    • 45,280 miles
    • 1 accident, 2 owners, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Dana Ford Lincoln (156 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Staten Island, NY / 156 miles away from Baltimore, MD

    Recent Arrival! 2021 GMC Sierra 2500HD Denali,Ford Blue Certified, *Fully detailed*, *Fresh oil change*, 10-Speed Automatic, 4WD, Dark Walnut/Dark Ash...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49REYXMF108980
    Stock: 108980
    Certified Pre-Owned: No
    Listed since: 05-11-2025

  • $50,998
    good price
    $2,349 below market
    • 71,837 miles
    • 1 accident, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from CA to MD*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Inglewood, CA / 2,324 miles away from Baltimore, MD

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT12SEY8KF226957
    Stock: 26611852
    Certified Pre-Owned: No

Showing 106 - 126 out of 601 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.4 out of 5 stars18 Reviews
Write a vehicle reviewSee all 18 reviews
  • 5 star
    (72%)
  • 4 star
    (11%)
  • 3 star
    (6%)
  • 2 star
    (11%)
  • 1 star
    (0%)
4 out of 5 stars

Love the looks, love the power, love the economy

Rick B., 03/18/2021
2020 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 6A)
I purchased a 2020 Sierra 2500HD AT4 (Duramax) in November of 2020. This thing is a BEAST and a joy to drive. I've put almost 131K miles on it thus far and have not had a single issue. IMHO, the interior is better than a Ford but trails behind the Dodge. However, just because it seems less capable with technology isn't necessarily true. I have physical switches for many things that … the Dodge incorporates in their big screen. I MUCH prefer the switches because I don't have to go through electronic pages to find what I'm looking for. The seats are a bit hard but are very supportive. I'm averaging a 21mpg with it at this point but the majority (80%) of my driving is highway speeds. In an attempt see just how good of gas mileage I could get, I drove a cruise controlled speed of 55 mph on a VERY flat 2 lane road for a little over 75 miles. My results, 29.3mpg, yep, you read that right. As I get up to interstate cruising speed it's much closer to 22mpg. I have hauled my 6,000 pound boat a couple of times with it and it still gets around 14mpg. Speaking of hauling the boat, this thing tows like a dream. The cameras, mirrors and tow-haul mode work great and if I couldn't see the boat in my mirrors, I would hardly know it's there. The voice command menu and responsiveness is great, no issues with it and it has always recognized what I'm asking for. The Bose speakers produce more than I can listen to, and the cab is quiet enough for conference calls when I'm travelling for work. The in-cab outlet is perfect for charging my laptop on the go and allows my wife to use the computer when we travel without killing the battery. I put a hardcover on the bed but with the multipro tailgate I rarely have to do anything with it, and I make a LOT of trips to the lumber yard for 8'+ lumber. All I have to do is drop the upper portion of the tailgate and the long lumber slides right in and is safe and secure. One thing I would criticize. It doesn't match up when compared to the other makers off-roading capabilities (manual/push button locking differentials), but I didn't really buy it for that. If you want something to do some relatively challenging off-road cruising, look elsewhere. I could go on, but suffice it to say that I LOVE this truck and would absolutely recommend it without hesitation.
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Used 2021 GMC Sierra 2500HD in Baltimore, MD Values

Estimated values
2021 GMC Sierra 2500HD SLT 4dr Crew Cab 4WD SB (6.6L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$36,531$40,675$44,841
Clean$35,862$39,890$43,932
Average$34,748$38,583$42,416
Rough$33,299$36,882$40,446

The average list price of a used 2021 GMC Sierra 2500HD in Baltimore, Maryland is $56,574. The average mileage on a used GMC Sierra 2500HD 2021 for sale in Baltimore, Maryland is 63,488. Based on the average mileage of 63,488 for used 2021 GMC Sierra 2500HD for sale in Baltimore, MD and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 2500HD 2021 in Baltimore, Maryland to be $34,748.

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