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935 listings
  • Price Drop
    $39,590
    good price
    $2,485 below market
    36,553 miles
    5'9” Bed, 5.3L, 8cyl
    Carvana (In-stock online)
    Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Charlotte, NC / 335 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 3GTU2NER5JG384211
    Stock: 2002867205
    Certified Pre-Owned: No
    Listed since: 04-22-2024

  • Price Drop
    $22,483
    great price
    $2,393 below market
    72,578 miles
    No accidents, 3 Owners, Corporate fleet vehicle
    6'7” Bed, 5.3L, 8cyl
    Pride Auto Sales (60 mi away)
    • AWD/4WD
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Fredericksburg, VA / 60 miles away from Rockville, MD

    3 months or 3,000 miles warranty included on selected inventory based on one-time full purchase price. We hand pick the best of the best inventory and...

    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: 1GTV2LEC2GZ370943
    Stock: 370943
    Certified Pre-Owned: No

  • $37,519
    good price
    $4,421 below market
    106,704 miles
    No accidents, 1 Owner, Personal use only
    6'7” Bed, 3L, 6cyl
    Tappahannock Chevrolet (83 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tappahannock, VA / 83 miles away from Rockville, MD

    2020 GMC Sierra 1500 Satin Steel Metallic 3.0L I6 ONE OWNER CARFAX!, SUPER CLEAN!!!, 3.0L DURAMAX DIESEL ENGINE!!! 10 SPEED TRANS!!! HEATED & VENTED P...

    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: 3GTU9DET2LG285897
    Stock: C2934
    Certified Pre-Owned: No
    Listed since: 04-08-2024

  • $43,310
    good price
    $3,674 below market
    34,028 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 5.3L, 8cyl
    John Sauder Chevrolet of New Holland (88 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in New Holland, PA / 88 miles away from Rockville, MD

    Check out this 2020 GMC Sierra 1500 with the following charming features **Professionally Detailed**, **Passed 172 Point Inspection**, BLUETOOTH, and ...

    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: 1GTU9DED3LZ134382
    Stock: 16869PB
    Certified Pre-Owned: No
    Listed since: 04-02-2024

  • 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.
  • $26,498
    good price
    $2,653 below market
    108,959 miles
    No accidents, 3 Owners, Corporate fleet vehicle
    5'9” Bed, 5.3L, 8cyl
    Koons of Woodbridge (33 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Woodbridge, VA / 33 miles away from Rockville, MD

    Visit Koons Automotive of Woodbridge online at www.koonsofwoodbridge.com to see more pictures of this vehicle or call us at 571-285-3277 today to sch...

    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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC8GG245730
    Stock: 33532
    Certified Pre-Owned: No

  • Price Drop
    $28,998
    good price
    $1,807 below market
    53,450 miles
    No accidents, 1 Owner, Personal use only
    6'7” Bed, 5.3L, 8cyl
    CarMax (In-stock online)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Waukesha, WI / 637 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: 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: 1GTV2LEC0JZ361276
    Stock: 24828104
    Certified Pre-Owned: No

  • Price Drop
    $42,000
    good price
    $4,316 below market
    70,835 miles
    1 Accident, 1 Owner, Personal use only
    6'7” Bed, 6.2L, 8cyl
    Lexus of Wilmington (95 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wilmington, DE / 95 miles away from Rockville, MD

    10-Speed Automatic, 4WD, Jet Black w/Perforated Leather-Appointed Front Seat Trim. CARFAX One-Owner. 4WD 10-Speed Automatic EcoTec3 6.2L V8 *Your ...

    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: 1GTU9FELXLZ173215
    Stock: RU173215
    Certified Pre-Owned: No
    Listed since: 04-01-2024

  • New Listing
    $42,998
    fair price
    $1,224 below market
    14,434 miles
    No accidents, 1 Owner, Personal use only
    5'9” Bed, 5.3L, 8cyl
    CarMax (In-stock online)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tallahassee, FL / 722 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: 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: 3GTU2NER6JG238514
    Stock: 25140866
    Certified Pre-Owned: No

  • 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
    $37,590
    good price
    $2,816 below market
    43,621 miles
    6'7” Bed, 5.3L, 8cyl
    Carvana (In-stock online)
    Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Philadelphia, PA / 126 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC5JG306829
    Stock: 2002794607
    Certified Pre-Owned: No
    Listed since: 03-17-2024

  • $38,998
    good price
    $2,188 below market
    32,755 miles
    1 Accident, 1 Owner, Personal use only
    5'9” Bed, 5.3L, 8cyl
    CarMax (In-stock online)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Greenville, SC / 412 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC1JG466996
    Stock: 25469727
    Certified Pre-Owned: No

  • $35,494
    good price
    $2,426 below market
    57,082 miles
    No accidents, 2 Owners, Personal use only
    5'9” Bed, 5.3L, 8cyl
    Lindsay Volvo Cars of Alexandria (17 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Alexandria, VA / 17 miles away from Rockville, MD

    Priced below KBB Fair Purchase Price! Clean CARFAX. Onyx Black 2018 GMC Sierra 1500 SLT 4WD 8-Speed Automatic with Overdrive EcoTec3 5.3L V8 8-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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC4JG639202
    Stock: SP2184
    Certified Pre-Owned: No
    Listed since: 09-09-2023

  • $34,900
    fair price
    $350 below market
    101,339 miles
    No accidents, 2 Owners, Personal use
    5'9” Bed, 6.2L, 8cyl
    Driveway (In-stock online)
    Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Smyrna, GA / 545 miles away from Rockville, MD

    CarFax No Accidents Reported,Rare Find,Back-Up Camera,Bluetooth,Brake Assist,Heated Seats,Heated Steering Wheel,Lane Keeping Assist,Leather Seats,Navi...

    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: 3GTU2PEJ5JG186671
    Stock: JG186671P
    Certified Pre-Owned: No

  • Price Drop
    $26,905
    good price
    $1,700 below market
    46,381 miles
    No accidents, 2 Owners, Personal use only
    6'7” Bed, 4.3L, 6cyl
    Floyd A Megee Motor (97 mi away)
    • AWD/4WD
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Georgetown, DE / 97 miles away from Rockville, MD

    You won't want to miss this excellent value! Ensuring composure no matter the driving circumstances! With fewer than 50,000 miles on the odometer, thi...

    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 (17 City/22 Highway)

    Listing Information:

    VIN: 1GTV2LEH1JZ264096
    Stock: 13493A
    Certified Pre-Owned: No
    Listed since: 03-15-2024

  • $37,999
    good price
    $1,838 below market
    32,149 miles
    No accidents, 1 Owner, Personal use only
    5'10” Bed, 5.3L, 8cyl
    John Sauder Chevrolet of New Holland (88 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in New Holland, PA / 88 miles away from Rockville, MD

    Check out this 2020 GMC Sierra 1500 with the following alluring features **Professionally Detailed**, **Passed 172 Point Inspection**, BLUETOOTH, and ...

    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: 3GTU9BED8LG263285
    Stock: 16875PB
    Certified Pre-Owned: No
    Listed since: 04-15-2024

  • Price Drop
    $36,590
    fair price
    $759 below market
    63,941 miles
    No accidents, 3 Owners, Personal use only
    5'9” Bed, 5.3L, 8cyl
    Carvana (In-stock online)
    Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Atlanta, GA / 546 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC3JG468264
    Stock: 2002866664
    Certified Pre-Owned: No
    Listed since: 04-25-2024

  • $24,995
    fair price
    $671 below market
    72,233 miles
    No accidents, 3 Owners, Corporate fleet vehicle
    6'7” Bed, 5.3L, 8cyl
    InTouch Auto Outlet (61 mi away)
    • AWD/4WD
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Spotsylvania Courthouse, VA / 61 miles away from Rockville, MD

    *** ELEVATION EDITION, TOUCH SCREEN DISPLAY, CLEAN CARFAX REPORT *** 20 Inch Plus Wheels Cloth Seats 4WD/AWD Rear View Camera Alloy Wheels Satellite R...

    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: 1GTV2LEC8GZ207486
    Stock: A4432
    Certified Pre-Owned: No

  • $31,300
    fair price
    $1,361 below market
    107,755 miles
    No accidents, 2 Owners, Personal use only
    5'9” Bed, 5.3L, 8cyl
    Driveway (In-stock online)
    Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in New Port Richey, FL / 815 miles away from Rockville, MD

    CarFax No Accidents Reported,Back-Up Camera,Bluetooth,Brake Assist,Heated Seats,Heated Steering Wheel,Lane Departure Warning,Lane Keeping Assist,Leath...

    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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC9JG304050
    Stock: JG304050
    Certified Pre-Owned: No

  • New Listing
    $22,471
    fair price
    $84 below market
    128,699 miles
    No accidents, 1 Owner, Personal use only
    6'7” Bed, 5.3L, 8cyl
    AutoNation Buick GMC Laurel (15 mi away)
    Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Laurel, MD / 15 miles away from Rockville, MD

    All Terrain Slt Premium Package All-Terrain Package Wheels; 20" X 9" (50.8 Cm X 22.9 Cm) Ultra Bright Machined Aluminum Lpo; Assist Steps; Chromed Tub...

    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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 1GTV2NEC8GZ386463
    Stock: GZ386463
    Certified Pre-Owned: No
    Listed since: 04-29-2024

  • New Listing
    $33,488
    fair price
    $1,002 below market
    73,358 miles
    No accidents, 2 Owners, Corporate fleet vehicle
    5'9” Bed, 5.3L, 8cyl
    Fitzgerald Toyota Chambersburg (64 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Chambersburg, PA / 64 miles away from Rockville, MD

    You won't want to miss this excellent value! It just arrived on our lot this past week! It includes heated seats, a built-in garage door transmitter, ...

    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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NEC9JG527110
    Stock: WA27110
    Certified Pre-Owned: No
    Listed since: 04-04-2024

  • $25,998
    fair price
    $870 above market
    96,161 miles
    No accidents, 2 Owners, Personal use
    6'7” Bed, 5.3L, 8cyl
    CarMax (In-stock online)
    Delivery available*
    • AWD/4WD
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Clearwater, FL / 835 miles away from Rockville, MD

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: 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: 1GTV2LEC5JZ268267
    Stock: 25554288
    Certified Pre-Owned: No

  • $35,199
    fair price
    $504 below market
    75,332 miles
    No accidents, 2 Owners, Personal use
    6'7” Bed, 5.3L, 8cyl
    Brian Hoskins Ford (96 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Coatesville, PA / 96 miles away from Rockville, MD

    ENGINE, 5.3L ECOTEC3 V8 WHEELS, 20" AUDIO SYSTEM, 8" DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH GMC INFOTAINMENT SYSTEM, AM/FM/SIRIUSXM, HD RADIO HD ...

    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:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2NECXJG192052
    Stock: 5551P
    Certified Pre-Owned: No
    Listed since: 02-06-2024

Showing 43 - 63 out of 935 listings

Consumer Reviews for the GMC Sierra 1500

Read recent reviews for the GMC Sierra 1500
Overall Consumer Rating
3.5 out of 5 stars40 Reviews
Write a vehicle reviewSee all 40 reviews
  • 5 star
    (43%)
  • 4 star
    (10%)
  • 3 star
    (23%)
  • 2 star
    (10%)
  • 1 star
    (15%)
3 out of 5 stars

Rethink the 8sp trans.

Don P, 06/21/2018
2018 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 6.5 ft. SB (5.3L 8cyl 6A)
18' GMC has the best looks, ride is good, stability in wind is amazing. I love the comfort and they made the cabin very quiet, road noise is not noticed. That said, the 8spd trans clunks, bangs 2nd to 3rd to 4th. Under throttle I hear no issues, city driving idling along, say 10 15mph, roll on and off the throttle and there are serious bangs going on, up and down. Its reminds me of a old … drive line ready to spit u joints at any time, its not in the rear end(ring n pinion lash), seems to be in the tranny. I have parked the truck, sits for +-2hrs, level, on start up the rear tires jerk the truck hard, defiantly gets your attention. Does this about once every 10 15 start ups. Took to the dealer and of course they say there is nothing wrong. Do your homework, look on social media about the 8spd trans, they are a problem. Buyer beware. Such a shame, love the truck otherwise.
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Used 2018 GMC Sierra 1500 in Rockville, MD Values

Estimated values
2018 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 8A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$28,927$32,696$36,047
Clean$28,225$31,891$35,149
Average$27,054$30,551$33,651
Rough$25,532$28,807$31,704

The average list price of a used 2018 GMC Sierra 1500 in Rockville, Maryland is $33,587. The average mileage on a used GMC Sierra 1500 2018 for sale in Rockville, Maryland is 68,017. Based on the average mileage of 68,017 for used 2018 GMC Sierra 1500 for sale in Rockville, MD and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 1500 2018 in Rockville, Maryland to be $27,054.

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