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2,171 listings
  • Price Drop
    $57,000
    good price
    $7,439 below market
    • 55,458 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Jack Giambalvo Buick GMC (450 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in York, PA / 450 miles away from Conway, SC

    Certified. Summit White 2023 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel GM CERTIFIED! ONE OWNER! CLEAN AUTOCHECK USB / A...

    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: 1GT49PEY0PF206098
    Stock: 743702A
    Certified Pre-Owned: Yes
    Listed since: 04-01-2025

  • New Listing
    $88,500
    good price
    $4,834 below market
    • 6,466 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Jerry Hunt Super Center (154 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Salisbury, NC / 154 miles away from Conway, SC

    Downpour Metallic 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Alpine Umber Leat...

    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: 1GT4UXEY7SF171728
    Stock: SK2598
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • $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 (313 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Union City, GA / 313 miles away from Conway, 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: 1GT49LE74MF127206
    Stock: P1423
    Certified Pre-Owned: No
    Listed since: 04-15-2025

  • Price Drop
    $81,658
    good price
    $3,578 below market
    • 8,699 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Reiselman GMC (479 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Springfield, TN / 479 miles away from Conway, SC

    REARVIEW CAMERA!, BLUETOOTH!, USB PORT!, Apple-Android CAR PLAY!, ONE OWNER!, CLEAN CAR FAX!, SUNROOF/MOONROOF!, SALES PRICE REFLECTS A $1500 DISCOUNT...

    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: 1GT4UPEY0SF187382
    Stock: 1R1026A
    Certified Pre-Owned: No
    Listed since: 05-16-2025

  • 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.
  • $66,995
    good price
    $4,650 below market
    • 51,222 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Griffin Ford (303 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tifton, GA / 303 miles away from Conway, SC

    Summit White 2023 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Bluetooth Smart technology, Hands Free Calling, Navigation,...

    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: 1GT49PEY4PF244613
    Stock: U1708
    Certified Pre-Owned: No
    Listed since: 04-17-2025

  • $69,900
    good price
    $5,201 below market
    • 26,875 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Prince Chevrolet (304 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tifton, GA / 304 miles away from Conway, SC

    Prince Automotive of Valdosta invites you to come see how easy and hassle free buying a pre-owned vehicle can be! Prince has been serving thee automot...

    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: 1GT49PEY9PF256580
    Stock: G300572A
    Certified Pre-Owned: No
    Listed since: 05-23-2025

  • Price Drop
    $62,499
    good price
    $5,531 below market
    • 44,669 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Leesburg Buick GMC (380 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Leesburg, VA / 380 miles away from Conway, SC

    Diesel Power. AT4 Prestige. 2021 GMC Sierra 2500HD AT4 4WD in Pacific Blue MetallicThis 2021 GMC Sierra 2500HD AT4 Crew Cab 4WD is the ultimate ble...

    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: 1GT49PEY8MF219547
    Stock: 40081A
    Certified Pre-Owned: No
    Listed since: 05-09-2025

  • Price Drop
    $61,590
    good price
    $6,075 below market
    • 43,959 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
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Phoenix, AZ / 1,889 miles away from Conway, SC

    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: 1GT49NEYXPF181120
    Stock: 2003756947
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • 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.
  • $59,981
    good price
    $4,411 below market
    • 62,361 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Joyce Koons Honda (360 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Manassas, VA / 360 miles away from Conway, SC

    CARFAX One-Owner. Clean CARFAX. White Frost Tricoat 2023 GMC Sierra 2500HD SLT 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather.Here is another h...

    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: 1GT49NEY8PF151601
    Stock: G242117A
    Certified Pre-Owned: No
    Listed since: 04-26-2025

  • $68,856
    good price
    $5,948 below market
    • 36,107 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Barkley Buick GMC (487 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tuscaloosa, AL / 487 miles away from Conway, SC

    Why Choose the 2023 GMC Sierra 2500 AT4?Low Mileage: This nearly-new Sierra 2500 AT4 has been gently driven, meaning youre getting a like-new truck wi...

    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: 1GT49PEY3PF233893
    Stock: 29488A
    Certified Pre-Owned: No
    Listed since: 05-26-2025

  • New Listing
    $70,835
    good price
    $3,266 below market
    • 11,973 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Dutch Miller Buick GMC (304 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Beckley, WV / 304 miles away from Conway, SC

    Vehicle DetailsExperience the pinnacle of power and luxury with this 2023 GMC Sierra 2500 Denali, a robust yet refined choice for those seeking versat...

    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: 1GT49REY9PF260852
    Stock: BT251522A
    Certified Pre-Owned: No
    Listed since: 06-04-2025

    • 47,782 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Auburndale Motorsports (475 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brooks, KY / 475 miles away from Conway, SC

    Visit Auburndale Motorsports online at www.AuburndaleMotors.com to see more pictures of this vehicle or call us at 5**-8**-2*** today to schedule...

    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: Yes

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY5PF261321
    Stock: 1069
    Certified Pre-Owned: No
    Listed since: 04-16-2025

  • 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
    $77,587
    good price
    $2,745 below market
    • 4,575 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Thornton Chevrolet (318 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lithia Springs, GA / 318 miles away from Conway, SC

    Odometer is 1555 miles below market average!Thank you for considering this beautiful 2025 GMC Sierra 2500HD Denali finished in stunning White Frost...

    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: 1GT4UREY4SF102703
    Stock: P15224
    Certified Pre-Owned: No
    Listed since: 05-09-2025

  • $66,900
    good price
    $5,694 below market
    • 68,731 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Hobson Chevrolet (359 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Cairo, GA / 359 miles away from Conway, SC

    NA

    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: 1GT49PEY2PF137544
    Stock: 137544
    Certified Pre-Owned: No
    Listed since: 12-31-2024

  • Price Drop
    $63,249
    good price
    $6,035 below market
    • 60,182 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Master Buick GMC (174 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Augusta, GA / 174 miles away from Conway, SC

    This vehicle is located at Master Chevrolet Cadillac in Aiken, SC! It is equipped with AT4 Preferred Package (Bed View Camera w/2 Trailer Camera Provi...

    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: 1GT49PEY4PF216942
    Stock: 6942SP
    Certified Pre-Owned: No
    Listed since: 04-10-2025

  • Price Drop
    $60,981
    good price
    $5,179 below market
    • 64,900 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • George Moore Chevrolet (276 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Jacksonville, FL / 276 miles away from Conway, SC

    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

  • 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
    $51,998
    great price
    $5,049 below market
    • 67,422 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from AZ to SC*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Gilbert, AZ / 1,875 miles away from Conway, SC

    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: 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: 1GT49MEY1PF256555
    Stock: 27451450
    Certified Pre-Owned: No

  • $64,089
    good price
    $3,586 below market
    • 46,701 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Parrish Ford (280 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Goochland, VA / 280 miles away from Conway, SC

    Apple CarPlay/Android Auto, Backup Camera, Bluetooth , Leather Seats, 10-Speed Automatic, 4WD, Jet Black Leather, Automatic Emergency Braking, Denali...

    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: 1GT49REY0PF144164
    Stock: P44164
    Certified Pre-Owned: No
    Listed since: 02-23-2025

  • Price Drop
    $68,068
    good price
    $2,728 below market
    • 27,350 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Thompson Buick GMC (145 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Raleigh, NC / 145 miles away from Conway, SC

    This GMC won't be on the lot long! It just arrived on our lot this past week! A turbocharger is also included as an economical means of increasing per...

    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: 1GT49REY1PF180459
    Stock: 252753A
    Certified Pre-Owned: No
    Listed since: 05-15-2025

  • $58,498
    good price
    $3,387 below market
    • 27,517 miles
    • No accidents, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Sutherland Chevrolet (421 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Nicholasville, KY / 421 miles away from Conway, SC

    A NON-SMOKER UNIT. LOADED WITH THE POPULAR SLE EDITION, H.D. 3/4 TON CHASSIS, PUSH-BUTTON 4 WHEEL-DRIVE, H.D. ALLSION 10-SPEED AUTOMATIC TRANSMISSION,...

    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: 1GT19MEY7PF227371
    Stock: P27371
    Certified Pre-Owned: No
    Listed since: 05-17-2025

  • $71,995
    good price
    $2,366 below market
    • 10,065 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Timberland Ford (365 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Perry, FL / 365 miles away from Conway, SC

    Bed Liner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Denali logo repla...

    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: 1GT49REY7PF145795
    Stock: C23023A
    Certified Pre-Owned: No
    Listed since: 03-24-2025

Showing 358 - 378 out of 2,171 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.3 out of 5 stars35 Reviews
Write a vehicle reviewSee all 35 reviews
  • 5 star
    (71%)
  • 4 star
    (11%)
  • 3 star
    (3%)
  • 2 star
    (6%)
  • 1 star
    (9%)
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 2023 GMC Sierra 2500HD in Conway, SC Values

Estimated values
2023 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$47,619$50,441$53,621
Clean$46,993$49,692$52,734
Average$45,950$48,444$51,257
Rough$44,593$46,821$49,336

The average list price of a used 2023 GMC Sierra 2500HD in Conway, South Carolina is $64,860. The average mileage on a used GMC Sierra 2500HD 2023 for sale in Conway, South Carolina is 38,614. Based on the average mileage of 38,614 for used 2023 GMC Sierra 2500HD for sale in Conway, SC 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 2023 in Conway, South Carolina to be $45,950.

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