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2,038 listings
    • 132,574 miles
    • No accidents, 3 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Commerce Chevrolet (487 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Commerce, TX / 487 miles away from Mobile, AL

    Clean CARFAX.10-Speed Automatic, 4WD, Jet Black Leather.For Sale: 2021 GMC Sierra 2500HD SLT Texas Edition Rugged Luxury with Duramax Diesel Power!Rea...

    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: 1GT49NEY5MF231336
    Stock: SF272247A
    Certified Pre-Owned: No
    Listed since: 04-23-2025

  • $61,900
    great price
    $9,095 below market
    • 34,918 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Gwatney Buick GMC Sherwood (369 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sherwood, AR / 369 miles away from Mobile, AL

    Clean CARFAX. Ebony Twilight Metallic 2021 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel This Price may require financin...

    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: 1GT49REYXMF243909
    Stock: 31478A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • $53,550
    great price
    $7,142 below market
    • 91,071 miles
    • 1 accident, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Lexus of Wesley Chapel (389 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Wesley Chapel, FL / 389 miles away from Mobile, AL

    Onyx Black 2021 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel **PLATINUM DETAIL**, **ACCESS TO OUR CAR WASH**, 10-Speed Aut...

    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: 1GT49PEY6MF201225
    Stock: T201225A
    Certified Pre-Owned: No
    Listed since: 04-23-2025

  • $49,852
    great price
    $5,833 below market
    • 116,459 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Thornton Buick GMC (271 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Carrollton, GA / 271 miles away from Mobile, AL

    Recent Arrival! Thank you for considering this beautiful 2021 GMC Sierra 2500HD Denali finished in stunning Onyx Black with Dark Walnut/Dark Ash Grey ...

    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: 1GT49REY4MF177776
    Stock: SG1235A
    Certified Pre-Owned: No
    Listed since: 05-31-2025

  • 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.
  • Price Drop
    $36,990
    great price
    $4,456 below market
    • 105,755 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Sterling Buick GMC (232 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Opelousas, LA / 232 miles away from Mobile, AL

    WiFi Hotspot, Onboard Communications System, Running Boards, Hitch, X31 OFF-ROAD PACKAGE, SEAT, CLOTH REAR WITH STORAGE PACKAGE... AND MORE!KEY FEATUR...

    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: 1GT49ME76MF260510
    Stock: G21588A
    Certified Pre-Owned: No
    Listed since: 03-14-2025

  • $50,900
    great price
    $6,464 below market
    • 78,490 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Starling Chevrolet GMC (449 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Saint Cloud, FL / 449 miles away from Mobile, AL

    2021 GMC Sierra 2500HD Denali ONE OWNER, NAVIGATION, SUNROOF, LEATHER, ALLOY WHEELS, BACKUP CAMERA, LANE ASSIST, FORWARD COLLISION ALERT, REAR CROSS T...

    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: 1GT49RE77MF241560
    Stock: 241560T
    Certified Pre-Owned: No
    Listed since: 03-13-2025

  • $55,900
    great price
    $6,040 below market
    • 86,031 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Don Franklin Chevrolet Buick GMC (487 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Somerset, KY / 487 miles away from Mobile, AL

    CARFAX One-Owner. Fully Detailed. Clean CARFAX. Ebony Twilight Metallic 2021 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodies...

    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: 1GT49REY9MF125494
    Stock: MF125494
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • $41,989
    great price
    $1,982 below market
    • 37,875 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Bella Nissan (292 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Union City, GA / 292 miles away from Mobile, AL

    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: 1GT49LE74MF127206
    Stock: P1423
    Certified Pre-Owned: No
    Listed since: 04-15-2025

  • 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.
  • Stock photo**
    $47,900
    good price
    $5,652 below market
    • 128,569 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Stan King GM SuperStore (149 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brookhaven, MS / 149 miles away from Mobile, AL

    Come see this 2021 GMC Sierra 2500HD AT4. Its Automatic transmission and Turbocharged Diesel V8 6.6L/403 engine will keep you going. This GMC Sierra 2...

    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: 1GT49PEY0MF137795
    Stock: 727125A
    Certified Pre-Owned: No
    Listed since: 06-02-2025

  • Price Drop
    $60,981
    good price
    $5,062 below market
    • 64,900 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • George Moore Chevrolet (397 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Jacksonville, FL / 397 miles away from Mobile, AL

    GMC Certified Pre-Owned Certified, 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat...

    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: 1GT49REY5MF267373
    Stock: 299915A
    Certified Pre-Owned: No
    Listed since: 05-26-2025

  • $57,788
    fair price
    $528 below market
    • 84,634 miles
    • No accidents, 2 owners, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Don Franklin Chrysler Dodge Jeep Ram FIAT (486 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Somerset, KY / 486 miles away from Mobile, AL

    2021 GMC 4WD Sierra 2500HD Denali Summit White

    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: 1GT49REY7MF172667
    Stock: MF172667
    Certified Pre-Owned: No
    Listed since: 04-26-2025

  • $43,993
    good price
    $2,194 below market
    • 25,950 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Mitch Smith Chevrolet (252 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Cullman, AL / 252 miles away from Mobile, AL

    Summit White 2021 GMC Sierra 2500HD SLE 4WD 6-Speed Automatic 6.6L V8 6-Speed Automatic, 4WD, Dark Walnut/Slate Cloth.Call 256-841-4410 today to sc...

    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: 1GT39ME72MF213048
    Stock: P5668
    Certified Pre-Owned: No
    Listed since: 03-10-2025

  • 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.
  • $61,928
    fair price
    $2,547 above market
    • 23,539 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Advantage Chrysler Jeep Dodge Ram (411 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Mount Dora, FL / 411 miles away from Mobile, AL

    Summit White 2021 GMC Sierra 2500HD AT4 Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD Sierra 2500HD AAT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiese...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT49PEY4MF316504
    Stock: 371390A
    Certified Pre-Owned: No
    Listed since: 04-23-2025

  • New Listing
    • 89,861 miles
    • No accidents, 4 owners, corporate fleet vehicle
    • 6'10” bed, 6.6l, 8cyl
    • Mac Haik Toyota (423 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in League City, TX / 423 miles away from Mobile, AL

    Ebony Twilight Metallic 2021 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black Leather, A...

    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: 1GT49REY1MF139826
    Stock: P14772
    Certified Pre-Owned: No
    Listed since: 06-05-2025

  • Price Drop
    $58,498
    fair price
    $1,639 below market
    • 82,974 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Hampton Hyundai (94 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Fort Walton Beach, FL / 94 miles away from Mobile, AL

    Clean CARFAX. 10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather.Hampton Has it! Hampton's Hot!** MAY REQUIRE FINANCING THROUGH DEALER FO...

    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: 1GT49REY5MF146715
    Stock: H25445C
    Certified Pre-Owned: No
    Listed since: 05-03-2025

  • Price Drop
    $54,995
    fair price
    $1,901 below market
    • 104,246 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Sullivan Cadillac (374 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Ocala, FL / 374 miles away from Mobile, AL

    Quicksilver Metallic 2021 GMC Sierra 2500HD Denali Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD 12-Volt Rear Auxiliary Power Outlet, 120-Volt Be...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY0MF275865
    Stock: C24M461G
    Certified Pre-Owned: No
    Listed since: 02-28-2025

  • 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
    $55,995
    fair price
    $3,085 above market
    • 98,786 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Sterling Buick GMC West (269 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Jennings, LA / 269 miles away from Mobile, AL

    Auto Check One Owner! CARFAX 1-Owner. NAV, Heated/Cooled Leather Seats, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL C...

    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: 1GT49PEY0MF274011
    Stock: GW2137A
    Certified Pre-Owned: No
    Listed since: 04-21-2025

  • $54,048
    fair price
    $431 below market
    • 114,800 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Campbell Chevrolet of Bowling Green (445 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bowling Green, KY / 445 miles away from Mobile, AL

    2021 GMC Sierra 2500HD Denali 4D Crew Cab White Frost Tricoat 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselAt Campbell Chevrolet- We make it ea...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY6MF275093
    Stock: T25430A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • Stock photo**
    $67,222
    fair price
    $1,265 below market
    • 21,963 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Megel Chevrolet (348 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Dawsonville, GA / 348 miles away from Mobile, AL

    10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrumen...

    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: 1GT49REYXMF208125
    Stock: 20086
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • Stock photo**
    $59,900
    fair price
    $2,196 below market
    • 64,372 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Stan King GM SuperStore (149 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Brookhaven, MS / 149 miles away from Mobile, AL

    Look at this 2021 GMC Sierra 2500HD Denali. Its Automatic transmission and Turbocharged Diesel V8 6.6L/403 engine will keep you going. This GMC Sierra...

    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: 1GT49REY1MF295218
    Stock: 738425A
    Certified Pre-Owned: No
    Listed since: 06-02-2025

  • Stock photo**
    $49,900
    fair price
    $1,889 below market
    • 131,593 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Lowery Brothers Motors (269 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Boaz, AL / 269 miles away from Mobile, AL

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY2MF132173
    Stock: 132173-T
    Certified Pre-Owned: No
    Listed since: 05-16-2025

Showing 1 - 21 out of 2,038 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.4 out of 5 stars24 Reviews
Write a vehicle reviewSee all 24 reviews
  • 5 star
    (75%)
  • 4 star
    (8%)
  • 3 star
    (4%)
  • 2 star
    (8%)
  • 1 star
    (4%)
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 Mobile, AL Values

Estimated values
2021 GMC Sierra 2500HD SLT 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$34,093$37,160$40,243
Clean$33,469$36,443$39,427
Average$32,429$35,248$38,067
Rough$31,077$33,695$36,299

The average list price of a used 2021 GMC Sierra 2500HD in Mobile, Alabama is $53,584. The average mileage on a used GMC Sierra 2500HD 2021 for sale in Mobile, Alabama is 81,874. Based on the average mileage of 81,874 for used 2021 GMC Sierra 2500HD for sale in Mobile, AL 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 Mobile, Alabama to be $32,429.

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