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6,505 listings
  • Price Drop
    $42,842
    great price
    $8,243 below market
    52,386 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    John Thornton Buick GMC (231 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Carrollton, GA / 231 miles away from Columbia, SC

    Recent Arrival! 4X4/FOUR WHEEL DRIVE, REAR BACK UP CAMERA, BLUETOOTH HANDS FREE CELL PHONE, NAVIGATION/GPS, DEALERSHIP INSPECTED, HEATED LEATHER SEATS...

    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: 3GTU9FEL1LG455033
    Stock: RG680A
    Certified Pre-Owned: Yes
    Listed since: 03-11-2024

  • $26,995
    great price
    $5,611 below market
    75,586 miles
    No accidents, 3 Owners, Corporate fleet vehicle
    5'10” Bed, 2.7L, 4cyl
    Gulf Coast Auto Brokers of Sarasota (466 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Sarasota, FL / 466 miles away from Columbia, SC

    Thank you for your interest in one of Gulf Coast Auto Brokers Inc's online offerings. Please continue for more information regarding this 2020 GMC SIE...

    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:

    20 Combined MPG (20 City/23 Highway)

    Listing Information:

    VIN: 3GTP8BEK5LG319410
    Stock: LG319410
    Certified Pre-Owned: No
    Listed since: 03-18-2024

  • Price Drop
    $28,395
    great price
    $4,072 below market
    68,835 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 2.7L, 4cyl
    Bob Caldwell Chrysler Jeep Dodge Ram (438 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Columbus, OH / 438 miles away from Columbia, SC

    Boasts 22 Highway MPG and 19 City MPG! This GMC Sierra 1500 delivers a Gas I4 2.7L/166 engine powering this Automatic transmission. ENGINE, 2.7L TURB...

    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: 1GTP9AEK5LZ241105
    Stock: 45645C
    Certified Pre-Owned: No
    Listed since: 03-10-2024

  • $36,499
    great price
    $5,445 below market
    82,736 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 3L, 6cyl
    Rivard Buick GMC (419 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 419 miles away from Columbia, SC

    CARFAX One-Owner. Satin Steel Metallic 2020 GMC Sierra 1500 SLT 3.0L I6 4WD 10-Speed Automatic Leather Seats, Heated/Cooled Seats, Backup/Rearview Cam...

    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: 3GTU9DET2LG163069
    Stock: R1901A
    Certified Pre-Owned: No
    Listed since: 03-19-2024

  • Advertisement
    Also Consider

    10 Offers Nearby

    2024 GMC Sierra 1500 Denali
    • 6 Colors
    • 1 Trim
    • 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
    $41,500
    great price
    $4,696 below market
    47,134 miles
    No accidents, 2 Owners, Personal use only
    5'10” Bed, 5.3L, 8cyl
    Starling Buick GMC Stuart (468 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Stuart, FL / 468 miles away from Columbia, SC

    2020 GMC Sierra 1500 SLT, Deep Mahogany Metallic, EcoTec3 5.3L V8 10-Speed Automatic 4WD Clean CARFAX. Bluetooth, Power Package, CLEAN CARFAX, NAVIGAT...

    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:

    19 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU9DED9LG147895
    Stock: 147895T
    Certified Pre-Owned: No
    Listed since: 03-13-2024

  • Price Drop
    $37,795
    great price
    $4,894 below market
    37,261 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 5.3L, 8cyl
    Radley Cadillac (362 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Fredericksburg, VA / 362 miles away from Columbia, SC

    CARFAX One-Owner. Clean CARFAX. 16/22 City/Highway MPG Cardinal Red 2020 GMC Sierra 1500 Elevation w/X31 OFF-ROAD PACKAGE EcoTec3 5.3L V8 4WD 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: 3GTU9CED2LG134514
    Stock: CT4025A
    Certified Pre-Owned: No
    Listed since: 03-20-2024

  • $44,979
    great price
    $6,353 below market
    35,766 miles
    No accidents, 2 Owners, Personal use only
    5'10” Bed, 5.3L, 8cyl
    Jim Hudson Toyota (14 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Irmo, SC / 14 miles away from Columbia, SC

    Recent Arrival! Odometer is 35799 miles below market average! Clean CARFAX.Clean CarFax, Local Trade, Well Maintained, 10-Speed Automatic, 4WD, Jet Bl...

    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:

    19 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 1GTU9DED4LZ252148
    Stock: T52236A
    Certified Pre-Owned: No
    Listed since: 04-22-2024

  • $37,841
    great price
    $6,643 below market
    89,007 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    Courtesy Buick GMC (390 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Louisville, KY / 390 miles away from Columbia, SC

    ONE OWNER NEW TRUCK TRADE IN***, 6.2 V8!, $5,000 BELOW MARKET VALUE, Sierra 1500 AT4, 4D Crew Cab, EcoTec3 6.2L V8, 4WD, Satin Steel Metallic, 8"" Dri...

    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: 3GTP9EEL3LG176707
    Stock: F331296B
    Certified Pre-Owned: No
    Listed since: 04-09-2024

  • Advertisement
    Also Consider

    10 Offers Nearby

    2024 GMC Sierra 1500 Denali
    • 6 Colors
    • 1 Trim
    • 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.
  • New Listing
    $27,981
    great price
    $3,186 below market
    126,383 miles
    No accidents, 2 Owners, Personal use only
    5'10” Bed, 5.3L, 8cyl
    Buick GMC Pensacola (432 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Pensacola, FL / 432 miles away from Columbia, SC

    Sierra 1500 SLE, 4D Crew Cab, EcoTec3 5.3L V8, 8-Speed Automatic, RWD, Quicksilver Metallic, Black Cloth, 120-Volt Bed Mounted Power Outlet, 120-Volt ...

    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: 3GTP8BED5LG212245
    Stock: TLG212245
    Certified Pre-Owned: No
    Listed since: 03-15-2024

  • $49,929
    great price
    $9,958 below market
    30,995 miles
    No accidents, 2 Owners, Personal use
    5'10” Bed, 3L, 6cyl
    CarDirect USA (347 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Virginia Beach, VA / 347 miles away from Columbia, SC

    STATUS - AVAILABLE IN STOCK ON LOT FOR SALEWARRANTY INCLUDED - YESCERTIFIED UNIT - YESINCLUDED IN SALE - YES - APRIL MAKE IT RAIN SALES EVENT!!!AVAILA...

    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: 1GTU9FET8LZ282871
    Stock: ZC5221
    Certified Pre-Owned: No
    Listed since: 02-21-2024

  • $43,500
    great price
    $5,399 below market
    58,241 miles
    No accidents, 1 Owner, Personal use
    5'10” Bed, 3L, 6cyl
    Bleecker Buick GMC (125 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Red Springs, NC / 125 miles away from Columbia, SC

    NAV, Sunroof, Heated Seats, Onboard Communications System, Satellite Radio, Back-Up Camera, Alloy Wheels, Tow Hitch, X31 OFF-ROAD PACKAGE, SLT PREFERR...

    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: 3GTU9DET5LG222700
    Stock: P32541
    Certified Pre-Owned: No
    Listed since: 04-03-2024

  • $35,860
    great price
    $5,497 below market
    73,757 miles
    No accidents, 2 Owners, Personal use only
    5'10” Bed, 5.3L, 8cyl
    Rivard Buick GMC (419 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 419 miles away from Columbia, SC

    Recent Arrival! Dark Sky Metallic 2020 GMC Sierra 1500 SLT EcoTec3 5.3L V8 4WD 10-Speed Automatic Leather Seats, Backup/Rearview Camera, Apple Car Pla...

    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:

    19 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU9DED5LG394492
    Stock: R2546A
    Certified Pre-Owned: No
    Listed since: 04-18-2024

  • $40,995
    great price
    $7,074 below market
    48,230 miles
    No accidents, 2 Owners, Personal use only
    5'10” Bed, 6.2L, 8cyl
    Auto Trademark (393 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Manassas, VA / 393 miles away from Columbia, SC

    2020 GMC SIERRA 1500 SLT 4X4 CREW CAB W/Camper Shell Call 703-361-6882, Super Clean, 1 Owner, Clean Carfax, Well Maintained, 48K Miles Only, Factory...

    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: 3GTU9DEL0LG357986
    Stock: AT16475
    Certified Pre-Owned: No

  • Price Drop
    $46,488
    great price
    $5,773 below market
    30,258 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    Porsche of Ocala (337 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Ocala, FL / 337 miles away from Columbia, SC

    4WD, -Priced below the market average!- Low miles for a 2020! Navigation, Back-up Camera, Bluetooth, This 2020 GMC Sierra 1500 Denali, has a great Whi...

    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: 1GTU9FEL9LZ224204
    Stock: MW09937A
    Certified Pre-Owned: No
    Listed since: 03-25-2024

  • $45,999
    great price
    $11,763 below market
    64,863 miles
    3 Accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    Richard Kay Chevrolet Buick GMC (103 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Anderson, SC / 103 miles away from Columbia, SC

    Check out all these great option's Denali Ultimate Package (GMC MultiPro Power Steps and Power Sunroof), Driver Alert Package I (Lane Change Alert w/S...

    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: 1GTU9FELXLZ280202
    Stock: M151310A
    Certified Pre-Owned: No
    Listed since: 04-24-2024

  • Price Drop
    $44,998
    great price
    $5,929 below market
    41,130 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 3L, 6cyl
    CarMax Raleigh - Now offering Express Pickup and Home Delivery (190 mi away)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Raleigh, NC / 190 miles away from Columbia, 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: 1GTU9DET2LZ214716
    Stock: 25788337
    Certified Pre-Owned: No

  • Stock photo © eVox Productions**
    $44,500
    great price
    $8,818 below market
    85,997 miles
    No accidents, 1 Owner, Personal use
    5'10” Bed, 6.2L, 8cyl
    Richard Kay Chevrolet Buick GMC (103 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Anderson, SC / 103 miles away from Columbia, SC

    Check out all these great option's Denali Ultimate Package (GMC MultiPro Power Steps and Power Sunroof), Driver Alert Package I (Lane Change Alert w/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: 1GTU9FEL6LZ298423
    Stock: P298423
    Certified Pre-Owned: No
    Listed since: 04-23-2024

  • $46,998
    great price
    $7,549 below market
    54,744 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    CarMax Sanford - Now offering Express Pickup and Home Delivery (354 mi away)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sanford, FL / 354 miles away from Columbia, 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: 1GTU9FEL8LZ183127
    Stock: 24873614
    Certified Pre-Owned: No

  • New Listing
    $43,633
    great price
    $5,890 below market
    67,407 miles
    No accidents, 4 Owners, Personal use only
    5'10” Bed, 3L, 6cyl
    Rivard Buick GMC (419 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Tampa, FL / 419 miles away from Columbia, SC

    Recent Arrival! Onyx Black 2020 GMC Sierra 1500 AT4 3.0L I6 4WD 10-Speed Automatic Leather Seats, Heated/Cooled Seats, Backup/Rearview Camera, Apple 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: 1GTU9EETXLZ262423
    Stock: R1413B
    Certified Pre-Owned: No
    Listed since: 04-29-2024

  • Price Drop
    $41,998
    great price
    $6,113 below market
    46,526 miles
    No accidents, 3 Owners, Personal use only
    6'7” Bed, 3L, 6cyl
    Sullivan Auto Trading Used Car Dealership (341 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Norfolk, VA / 341 miles away from Columbia, SC

    Priced below KBB Fair Purchase Price! 22/26 City/Highway MPG CARFAX One-Owner. Clean CARFAX.2020 GMC Sierra 1500 Denali White Frost TricoatSullivan Au...

    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: 3GTU9FET8LG334158
    Stock: 140907
    Certified Pre-Owned: No
    Listed since: 02-06-2024

  • $41,926
    great price
    $6,937 below market
    73,295 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 6.2L, 8cyl
    Bowser Hyundai (447 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pleasant Hills, PA / 447 miles away from Columbia, SC

    Recent Arrival! Priced below KBB Fair Purchase Price! CARFAX One-Owner. Clean CARFAX. 2020 GMC Certified. 4WD Sierra 1500 AT4 Satin Steel Metallic 10-...

    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: 3GTP9EEL7LG401551
    Stock: G24508A
    Certified Pre-Owned: No
    Listed since: 04-23-2024

Showing 1 - 21 out of 6,505 listings

Consumer Reviews for the GMC Sierra 1500

Read recent reviews for the GMC Sierra 1500
Overall Consumer Rating
3.7 out of 5 stars35 Reviews
Write a vehicle reviewSee all 35 reviews
  • 5 star
    (51%)
  • 4 star
    (14%)
  • 3 star
    (6%)
  • 2 star
    (9%)
  • 1 star
    (20%)
4 out of 5 stars

Good but not class leading

Davelv, 07/08/2020
2020 GMC Sierra 1500 Denali 4dr Crew Cab 6.6 ft. SB (5.3L 8cyl 8A)
Just put 8500 miles in 7 weeks on a new 2020 Sierra 1500 Denali with the 3.0 Duramax. Overall mpg was 24 with highway speeds at 75 to 80 mph. Driving at 55 mph in construction zones netted 40 to 50 mpg. Fantastic engine. Ride is smooth. Seats are comfortable. Easy to drive all day. However.... the navigation voice input is useless as it can't recognize most requests. Navigation … also will try to send you down a goat path which might be on the maps but is not a real road. And worse it still has the 2016-2018's occasional problem of saying go right when the direction is really left, and vice-versa. Expect to always have to use Apple Carplay as backup for finding stuff and getting good directions. Also the screen is small and can't adequately display maps and music info at the same time. Tailgate is very heavy, as is its subdoor which is tough to close when the gate is down. Truck came with an electrical cable hanging from underneath that if it had caught on something would have torn it away - but was easily re-positioned to tuck it out of harms way. Heads-up display is nice, but the navigation map doesn't fully translate to it, just arrows and road numbers. Radio when it starts in a garage says no satellite signal message which doesn't go away until the channel is changed in the clear. DEF usage about 1 gallon/1000 miles. The 3.0 Duramax starts quickly and idles at 300 rpm and is almost unnoticeable at stop lights. Definitely suggest getting a start/stop eliminator since otherwise it resets every time the engine starts. Lane keeping is weaker than the 2016-2018 models, and severely lags other manufacturer's capabilities to self-drive for extended periods. Adaptive cruse control uses camera and shuts off when driving into the sun, but the standard cruise can still be used - a radar unit would eliminate this problem. Interior has a lot of plastic on the doors and dash that scratches easily. Sunroof is still only a small single pane instead of dual pane. It is a nice vehicle but would be fantastic with technology upgrades, higher interior quality availability, and some luxury options, e.g. dual pane sunroof, rear window shades, 20 way seats. Note that Model selected was for the 5.3L, not 3.0 Duramax as Edmunds doesn't list it, but this review is for the 3.0 Duramax.
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Used 2020 GMC Sierra 1500 in Columbia, SC Values

Estimated values
2020 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (6.2L 8cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$37,039$40,424$43,828
Clean$36,361$39,644$42,940
Average$35,231$38,345$41,459
Rough$33,762$36,655$39,533

The average list price of a used 2020 GMC Sierra 1500 in Columbia, South Carolina is $40,555. The average mileage on a used GMC Sierra 1500 2020 for sale in Columbia, South Carolina is 61,454. Based on the average mileage of 61,454 for used 2020 GMC Sierra 1500 for sale in Columbia, 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 1500 2020 in Columbia, South Carolina to be $35,231.

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