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2,019 listings
  • $40,315
    great price
    $6,518 below market
    40,949 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Al Piemonte Chevrolet of Dundee (89 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in East Dundee, IL / 89 miles away from Madison, WI

    Clean CARFAX.New Price! Certified.Summit White 4D Crew Cab 2020 GMC Sierra 2500HD SLE 4WD 6.6L V8 6-Speed AutomaticGMC Certified Pre-Owned Details: * ...

    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: 1GT19ME79LF255450
    Stock: K8028
    Certified Pre-Owned: No
    Listed since: 03-15-2024

  • $59,994
    great price
    $11,213 below market
    42,284 miles
    No accidents, 2 Owners, Personal use
    6'10” Bed, 6.6L, 8cyl
    Sapaugh GM Country (338 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Herculaneum, MO / 338 miles away from Madison, WI

    ** We are 15 minutes south of St. Louis. Everyone leaves happy! Priced below KBB Fair Purchase Price! Carbon Black Metallic 2020 GMC Sierra 2500HD Den...

    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: 1GT49REY5LF309457
    Stock: 2430562
    Certified Pre-Owned: No
    Listed since: 03-09-2024

  • Price Drop
    $42,600
    great price
    $6,734 below market
    24,726 miles
    No accidents, 1 Owner, Personal use
    6'10” Bed, 6.6L, 8cyl
    Lunghamer Buick GMC (304 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Waterford, MI / 304 miles away from Madison, WI

    2020 GMC Sierra 2500HD SLE REAR BACK UP CAMERA, APPLE CAR PLAY ANDROID AUTO, GOOD BRAKES, RECENT TRADE IN, Sierra 2500HD SLE, 4D Crew Cab, 6.6L V8, 6-...

    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: 1GT19ME72LF176217
    Stock: 455247
    Certified Pre-Owned: No
    Listed since: 02-12-2024

  • $63,000
    great price
    $6,160 below market
    28,493 miles
    No accidents, 3 Owners, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Ed Martin Chevrolet (284 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Anderson, IN / 284 miles away from Madison, WI

    10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim.Odometer is 37789 miles below market average!Ed M...

    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: 1GT19PEYXLF340470
    Stock: 436046C
    Certified Pre-Owned: No
    Listed since: 03-23-2024

  • Advertisement
    Also Consider

    Special offers available

    2024 GMC Sierra HD
    • 6 Colors
    • 2 Trims
    • 6 Packages
    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
    $53,800
    great price
    $5,193 below market
    83,585 miles
    No accidents, 2 Owners, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Ed Napleton Honda St Peters (302 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Saint Peters, MO / 302 miles away from Madison, WI

    Clean CARFAX. Summit White 2020 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel ALARM SYSTEM, APPLE CARPLAY/ANDROID AUTO, AUX...

    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: 1GT49PEY7LF272755
    Stock: PJP11011
    Certified Pre-Owned: No
    Listed since: 03-25-2024

  • $52,995
    great price
    $9,990 below market
    74,942 miles
    1 Accident, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Laura's Chrysler Dodge Jeep Ram (348 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sullivan, MO / 348 miles away from Madison, WI

    Recent Arrival! 2020 GMC Sierra 2500HD Denali Duramax 6.6L V8, 4WD 10-Speed Automatic, Denali Ultimate Package, Gooseneck/5th Wheel Prep, Power Sunroo...

    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: 1GT49REYXLF199232
    Stock: CFCF23540B
    Certified Pre-Owned: No
    Listed since: 04-13-2024

  • $49,980
    great price
    $4,937 below market
    129,197 miles
    No accidents, 3 Owners, Personal use
    6'10” Bed, 6.6L, 8cyl
    Don Franklin Bardstown Chevrolet Buick (417 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bardstown, KY / 417 miles away from Madison, WI

    Freshly Detailed, Ready for immediate delivery. Clean CARFAX. Quicksilver Metallic 2020 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V...

    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: 1GT49REY4LF125160
    Stock: LF125160
    Certified Pre-Owned: No
    Listed since: 04-18-2024

  • $65,140
    good price
    $3,319 below market
    40,484 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Jeff Perry Buick GMC (119 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Peru, IL / 119 miles away from Madison, WI

    Recent Arrival! 2020 GMC Sierra 2500HD AT4 Summit White LEATHER SEATS, HEATED SEATS, COOLED SEATS, BLUETOOTH, TRAILER PACKAGE, REMOTE START, *LOCAL TR...

    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: 1GT49PEY6LF185252
    Stock: 24277A
    Certified Pre-Owned: Yes
    Listed since: 04-17-2024

  • Advertisement
    Also Consider

    Special offers available

    2024 GMC Sierra HD
    • 6 Colors
    • 2 Trims
    • 6 Packages
    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
    $55,500
    good price
    $3,836 below market
    85,218 miles
    No accidents, 3 Owners, Personal use
    6'10” Bed, 6.6L, 8cyl
    Driveway (438 mi away)
    Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lexington, KY / 438 miles away from Madison, WI

    Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Heads-Up Display,Heated Seats,Heated Steering Wheel,Keyless Start,Leather Seats,Navigation S...

    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: 1GT49REYXLF254651
    Stock: LF254651A
    Certified Pre-Owned: No

  • Stock photo © eVox Productions**
    $42,900
    good price
    $3,902 below market
    118,195 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Junction Buick GMC (432 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Chardon, OH / 432 miles away from Madison, 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: 1GT49NE76LF102074
    Stock: B102074L
    Certified Pre-Owned: No
    Listed since: 04-09-2024

  • $59,611
    fair price
    $2,055 below market
    68,397 miles
    No accidents, 2 Owners, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Wetzel Honda (321 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Richmond, IN / 321 miles away from Madison, WI

    ***TO SCHEDULE YOUR VIP APPOINTMENT** Contact store manager, Chris Casebolt at (765) 598-4492 or email ccasebolt@wetzelauto.com. 10-Speed Automatic, 4...

    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: 1GT49REY9LF185239
    Stock: 92917A
    Certified Pre-Owned: No
    Listed since: 03-08-2024

  • New Listing
    $65,998
    fair price
    $2,766 below market
    22,716 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    CarMax Lexington - Now offering Express Pickup (436 mi away)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lexington, KY / 436 miles away from Madison, WI

    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: 1GT49PEY4LF137216
    Stock: 25730809
    Certified Pre-Owned: No

  • New Listing
    $42,672
    fair price
    $3,132 below market
    53,048 miles
    No accidents, 1 Owner, Corporate fleet vehicle
    6'10” Bed, 6.6L, 8cyl
    Bob Caldwell Chrysler Jeep Dodge Ram (391 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Columbus, OH / 391 miles away from Madison, WI

    This GMC Sierra 2500HD delivers a Gas V8 6.6L/ engine powering this Automatic transmission. ENGINE, 6.6L V8 with Direct Injection and Variable Valve...

    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: 1GT49ME73LF209898
    Stock: 45853
    Certified Pre-Owned: No
    Listed since: 04-29-2024

  • Price Drop
    $42,117
    fair price
    $2,700 below market
    60,966 miles
    No accidents, 1 Owner, Rental vehicle
    6'10” Bed, 6.6L, 8cyl
    Deery Brothers Chevrolet (233 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Pleasant Hill, IA / 233 miles away from Madison, WI

    * 4WD *, * HEATED SEATS *, * NAVIGATION *, * BACK-UP CAMERA *, * REMOTE START *, * APPLE CARPLAY *, * ANDROID AUTO *, * HEATED STEERING WHEEL *, * BLU...

    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: 1GT49ME70LF189612
    Stock: PJ7042
    Certified Pre-Owned: No
    Listed since: 03-27-2024

  • $59,975
    good price
    $2,673 below market
    61,975 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Ray Skillman Auto Center Buick GMC (291 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Indianapolis, IN / 291 miles away from Madison, WI

    2020 GMC Sierra 2500HD Denali 4WD Red Quartz Tintcoat 10-Speed Automatic, 4WD, Jet Black w/Forge Perforated Leather-Appointed Front Seat Trim.10-Speed...

    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: 1GT49REY3LF261506
    Stock: N0144A
    Certified Pre-Owned: No
    Listed since: 11-21-2023

  • $55,987
    good price
    $2,302 below market
    53,518 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Serra Buick GMC (323 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Washington, MI / 323 miles away from Madison, WI

    20" ALUMINUM WHEELS, 4WD, POWER SUNROOF, NAVIGATION, HEATED LEATHER WRAPPED STEERING WHEEL W/ MOUNTED CONTROLS & CRUISE CONTROL, HEATED & COOLED FRONT...

    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: 1GT49RE77LF156975
    Stock: T501361A
    Certified Pre-Owned: No
    Listed since: 04-16-2024

  • $49,997
    fair price
    $536 above market
    150,870 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Shawnee Mission Ford (395 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Shawnee, KS / 395 miles away from Madison, WI

    2020 GMC Sierra 2500HD Denali Sierra 2500HD Denali, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 4WD, Quicksilver Metallic, Front dual zone A/C, Heated...

    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: 1GT49REY5LF281238
    Stock: 70274A
    Certified Pre-Owned: No
    Listed since: 03-19-2024

  • New Listing
    $40,998
    good price
    $2,142 below market
    106,973 miles
    No accidents, 1 Owner, Personal use
    6'10” Bed, 6.6L, 8cyl
    CarMax Kansas City - Now offering Express Pickup (394 mi away)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Merriam, KS / 394 miles away from Madison, WI

    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: 1GT49LEY0LF265722
    Stock: 24330110
    Certified Pre-Owned: No

  • Price Drop
    $48,830
    good price
    $3,208 below market
    134,045 miles
    2 Accidents, 2 Owners, Corporate fleet vehicle
    6'10” Bed, 6.6L, 8cyl
    Cambridge Truck (453 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Cambridge, OH / 453 miles away from Madison, WI

    2020 Carbon Black Metallic GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel This GMC Sierra 2500HD has many features and is we...

    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: 1GT49PEY8LF200835
    Stock: CAM-200835
    Certified Pre-Owned: No
    Listed since: 04-10-2024

  • Price Drop
    $56,785
    fair price
    $2,051 below market
    67,450 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Frankman Motor Company (367 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sioux Falls, SD / 367 miles away from Madison, WI

    Certification Program Details: This vehicle comes with our Frankman Certified 8 Point 3 Month/3,000 Mile Warranty at no additional charge. This warran...

    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: 1GT49RE72LF207962
    Stock: 207962
    Certified Pre-Owned: No
    Listed since: 02-29-2024

  • New Listing
    $61,385
    fair price
    $1,917 below market
    65,361 miles
    No accidents, 1 Owner, Personal use only
    6'10” Bed, 6.6L, 8cyl
    Jeff Wyler Chrysler Dodge Jeep Ram of Springfield (359 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Springfield, OH / 359 miles away from Madison, WI

    Dark Sky Metallic 2020 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel SPRINGFIELD WYLER HOTLINE 937-325-4601, VIP APPOINT...

    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: 1GT49REY4LF273129
    Stock: 5574265A
    Certified Pre-Owned: No
    Listed since: 04-27-2024

Showing 1 - 21 out of 2,019 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 2020 GMC Sierra 2500HD in Madison, WI Values

Estimated values
2020 GMC Sierra 2500HD SLE 4dr Crew Cab 4WD SB (6.6L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$31,017$32,936$34,865
Clean$30,449$32,301$34,158
Average$29,503$31,242$32,980
Rough$28,273$29,865$31,448

The average list price of a used 2020 GMC Sierra 2500HD in Madison, Wisconsin is $52,885. The average mileage on a used GMC Sierra 2500HD 2020 for sale in Madison, Wisconsin is 72,066. Based on the average mileage of 72,066 for used 2020 GMC Sierra 2500HD for sale in Madison, WI 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 2020 in Madison, Wisconsin to be $29,503.

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Edmunds' ratings are backed by 15+ years of pricing research done by our data scientistsHow are ratings determined?We analyze millions of data points to generate our ratings. We look at vehicle configuration, options, history, nearby transactions, market pricing and more — the ratings are up-to-date and relevant to your search area.

Trim

Truck Details

Cabin Size

Bed Length

Displacement

Mileage

to
Mileage

Vehicle History

Engine & Drivetrain

Transmission

Engine Type

Drivetrain

Cylinders

Exterior Color

Interior Color

Total Seating

Features

Comfort & Convenience

Safety

Engine & Exterior

Entertainment

Options & Packages

MPG

to
MPG

Vehicle Listing Details


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