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1,233 listings
  • New Listing
    Stock photo**
    $18,769
    good price
    $2,646 below market
    • 177,551 miles
    • No accidents, 1 owner, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • John Thornton Buick GMC (51 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Carrollton, GA / 51 miles away from Atlanta, GA

    Recent Arrival! Thank you for considering this beautiful 2015 GMC Sierra 1500 SLT finished in stunning Onyx Black with Jet Black Leather.16/22 City/Hi...

    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: 3GTU2VEC2FG522032
    Stock: SG852A
    Certified Pre-Owned: No
    Listed since: 04-25-2025

  • New Listing
    $16,998
    fair price
    $462 below market
    • 198,497 miles
    • 1 accident, 4 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Billy Cain Ford (49 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Commerce, GA / 49 miles away from Atlanta, GA

    Denali Equipment Group, Local Trade, Super Nice Truck, Spray in  Bedliner, Bed Mat, Bed Cover, Running Boards, Loaded

    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: 3GTU2WEC5FG124884
    Stock: UT4884
    Certified Pre-Owned: No
    Listed since: 04-26-2025

    • 119,967 miles
    • 1 accident, 2 owners, personal use
    • 8'2” bed, 5.3l, 8cyl
    • Southtowne Chevrolet Buick GMC (46 mi away)
    • Tire Pressure Warnin...
    • USB Inputs
    • Upgraded Engine
    • Trip Computer
    • Stability Control
    Close

    Located in Newnan, GA / 46 miles away from Atlanta, GA

    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: 1GTN1TEC7FZ906853
    Stock: 2E60701A
    Certified Pre-Owned: No
    Listed since: 03-28-2025

  • $24,800
    fair price
    $469 below market
    • 101,545 miles
    • No accidents, 4 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Countryside Pre-Owned Super Center (48 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Upgraded Headlights
    Close

    Located in Jackson, GA / 48 miles away from Atlanta, GA

    Vehicle DetailsIntroducing the 2016 GMC Sierra 1500 SLT, a robust and reliable pickup designed for those who demand both performance and comfo...

    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/23 Highway)

    Listing Information:

    VIN: 3GTP1NEC5GG276868
    Stock: 3LP668
    Certified Pre-Owned: No
    Listed since: 03-20-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 1500
    $65,400
    starting MSRP
    • 1 Trim
    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
    $19,890
    fair price
    $1,238 below market
    • 152,640 miles
    • 2 accidents, 3 owners, personal use only
    • 5'9” bed, 6.2l, 8cyl
    • AutoNation USA Kennesaw (18 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Kennesaw, GA / 18 miles away from Atlanta, GA

    Engine; 6.2L Ecotec3 V8 With Active Fuel ManagementLeather SeatsNavigation SystemDriver Alert PackageSuspension Package; Off-RoadTrailer Brake Co...

    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: 3GTU2WEJ3EG276319
    Stock: EG276319
    Certified Pre-Owned: No
    Listed since: 04-26-2025

  • $17,800
    fair price
    $95 above market
    • 151,423 miles
    • No accidents, 1 owner, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Countryside Pre-Owned Super Center (48 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    Close

    Located in Jackson, GA / 48 miles away from Atlanta, GA

    Vehicle DetailsIntroducing the 2014 GMC Sierra 1500 SLE, a robust and reliable pickup designed to tackle both work and play with ease. This ve...

    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: 3GTU2UEC4EG399343
    Stock: 3P707
    Certified Pre-Owned: No
    Listed since: 02-03-2025

  • New Listing
    • 71,670 miles
    • No accidents, 1 owner, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • CarMax Town Center (18 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Upgraded Headlights
    Close

    Located in Kennesaw, GA / 18 miles away from Atlanta, GA

    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: 3GTP1MEC8GG141345
    Stock: 26162000
    Certified Pre-Owned: No

  • New Listing
    $22,995
    great price
    $3,308 below market
    • 123,878 miles
    • 2 accidents, 1 owner, personal use only
    • 5'9” bed, 6.2l, 8cyl
    • Los Plebes Auto Sales (34 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Gainesville, GA / 34 miles away from Atlanta, GA

    Visit Los Plebes Auto Sales online at plebesautosales.com to see more pictures of this vehicle or call us at 6**-9**-1*** today to schedule your t...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/22 Highway)

    Listing Information:

    VIN: 3GTU2WEJ6FG367246
    Stock: 367246
    Certified Pre-Owned: No
    Listed since: 03-31-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 1500
    $65,400
    starting MSRP
    • 1 Trim
    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
    $17,300
    good price
    $2,802 below market
    • 69,829 miles
    • 1 accident, 2 owners, personal use only
    • 6'7” bed, 5.3l, 8cyl
    • Jim Ellis Buick GMC (2 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Atlanta, GA / 2 miles away from Atlanta, GA

    2013 GMC Sierra 1500 SLE Quicksilver MetallicBluetooth, Trailer System Tow, Running Boards, 6-Speed Automatic, 4WD, Light Titanium/Dark Titanium Accen...

    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: 1GTR2VE7XDZ217528
    Stock: S155020A
    Certified Pre-Owned: No
    Listed since: 04-09-2025

  • Price Drop
    $17,895
    good price
    $2,928 below market
    • 125,559 miles
    • 1 accident, 2 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Bill's Cars and Trucks (49 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Griffin, GA / 49 miles away from Atlanta, GA

    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: 3GTP1UEC4FG305009
    Stock: 14716
    Certified Pre-Owned: No

  • $18,390
    good price
    $1,696 below market
    • 137,150 miles
    • No accidents, 3 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Legacy Motorcars (12 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Marietta, GA / 12 miles away from Atlanta, GA

    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: 3GTP1UEC0FG120259
    Stock: P0259
    Certified Pre-Owned: No

  • $15,500
    fair price
    $946 below market
    • 200,386 miles
    • No accidents, 3 owners, personal use only
    • 6'7” bed, 5.3l, 8cyl
    • Precision Automotive Sales llc (22 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    Close

    Located in Conyers, GA / 22 miles away from Atlanta, GA

    Very nice truck, smooth ride and drives great, clean inside and out,Aluminum/Alloy Wheels, Automatic Climate Control, Back Up Camera, Bluetooth Connec...

    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: 3GTU2UECXFG189170
    Stock: 189170
    Certified Pre-Owned: No
    Listed since: 03-20-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 1500
    $65,400
    starting MSRP
    • 1 Trim
    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.
  • $23,987
    good price
    $2,496 below market
    • 115,238 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 5'9” bed, 5.3l, 8cyl
    • CarsNow (90 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Cleveland, TN / 90 miles away from Atlanta, GA

    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: 3GTU2VEC4FG516376
    Stock: 141
    Certified Pre-Owned: No

  • New Listing
    $17,995
    good price
    $2,191 below market
    • 189,375 miles
    • 1 accident, 2 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • William D Auto Sales (3 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Norcross, GA / 3 miles away from Atlanta, GA

    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: 3GTU2VECXFG418680
    Stock: 418680
    Certified Pre-Owned: No
    Listed since: 12-03-2024

  • $15,900
    fair price
    $1,022 below market
    • 169,544 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 5'9” bed, 5.3l, 8cyl
    • Motor Max (43 mi away)
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Griffin, GA / 43 miles away from Atlanta, GA

    The 2015 GMC Sierra SLE is a versatile and reliable pickup truck that offers a blend of rugged capability and modern technology. With No Accidents 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:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 3GTP1UEC0FG469289
    Stock: 11133
    Certified Pre-Owned: No
    Listed since: 12-07-2024

  • Price Drop
    $24,095
    good price
    $1,162 below market
    • 83,778 miles
    • No accidents, 1 owner, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Vehicle Deans (13 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Power Driver Seat
    Close

    Located in Marietta, GA / 13 miles away from Atlanta, GA

    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/23 Highway)

    Listing Information:

    VIN: 3GTP1VEC0FG236339
    Stock: 236339
    Certified Pre-Owned: No

  • Advertisement

    Special offers available

    2025 GMC Sierra 1500
    $65,400
    starting MSRP
    • 1 Trim
    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
    $14,995
    fair price
    $654 below market
    • 153,731 miles
    • 1 accident, 4 owners, corporate fleet vehicle
    • 6'7” bed, 4.3l, 6cyl
    • LGM Motors (15 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Snellville, GA / 15 miles away from Atlanta, GA

    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:

    19 Combined MPG (17 City/22 Highway)

    Listing Information:

    VIN: 1GTV2UEH7FZ433843
    Stock: 433843
    Certified Pre-Owned: No

  • New Listing
    $26,990
    fair price
    $445 above market
    • 102,782 miles
    • No accidents, 3 owners, personal use only
    • 5'9” bed, 5.3l, 8cyl
    • Carvana - Atlanta (14 mi away)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Upgraded Headlights
    Close

    Located in Atlanta, GA / 14 miles away from Atlanta, GA

    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:

    19 Combined MPG (16 City/23 Highway)

    Listing Information:

    VIN: 3GTP1NECXHG213556
    Stock: 2003438035
    Certified Pre-Owned: No
    Listed since: 01-18-2025

  • New Listing
    $16,450
    fair price
    $17 below market
    • 137,056 miles
    • 2 accidents, 3 owners, personal use
    • 6'7” bed, 5.3l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Tire Pressure Warnin...
    • USB Inputs
    • Upgraded Engine
    • Trip Computer
    Close

    Located in Salem, OR / 2,178 miles away from Atlanta, GA

    Bluetooth,Tow Hitch,4-Wheel Disc Brakes,6-Speed A/T,8 Cylinder Engine,A/C,A/T,ABS,Adjustable Steering Wheel,AM/FM Stereo,Auxiliary Audio Input,Bluetoo...

    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: 1GTV2TEC0FZ369269
    Stock: V369269
    Certified Pre-Owned: No

  • Price Drop
    Stock photo**
    $13,973
    fair price
    $360 below market
    • 158,736 miles
    • 1 accident, 3 owners, personal use
    • 6'7” bed, 5.3l, 8cyl
    • MSinco's Auto Broker (15 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Snellville, GA / 15 miles away from Atlanta, GA

    This 2015 GMC Sierra 1500 SLE is loaded with great features!!! Has a clean AutoCheck vehicle history report, plus it comes with the AutoCheck BuyBack ...

    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: 1GTR1UEC8FZ381129
    Stock: 381129
    Certified Pre-Owned: No
    Listed since: 03-29-2025

  • $24,990
    fair price
    $865 above market
    • 67,489 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
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Johnston, IA / 743 miles away from Atlanta, GA

    CarFax No Accidents Reported,Low Mileage,Back-Up Camera,Bluetooth,Satellite Radio,WiFi Hotspot,4-Wheel Disc Brakes,6-Speed A/T,A/C,ABS,Adjustable Stee...

    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: 3GTU2UEC8FG201784
    Stock: FG201784D
    Certified Pre-Owned: No

Showing 1 - 21 out of 1,233 listings

Consumer Reviews for the GMC Sierra 1500

Read recent reviews for the GMC Sierra 1500
Overall Consumer Rating
3.4 out of 5 stars72 Reviews
Write a vehicle reviewSee all 72 reviews
  • 5 star
    (33%)
  • 4 star
    (24%)
  • 3 star
    (11%)
  • 2 star
    (10%)
  • 1 star
    (22%)
5 out of 5 stars

2015 GMC Sierra 1500 Crew Cab SLT

papanav, 11/02/2014
2015 GMC Sierra 1500 SLT 4dr Crew Cab 5.8 ft. SB (5.3L 8cyl 6A)
Purchased a 2015 Sierra 1500 SLT (crew cab) and traded in my 2014 Sierra 1500 SLE (double cab). I usually keep a vehicle for 10 years or more however, the only reason I traded was because of the very good incentive on the 2015 and the excellent deal I had gotten on the 2014 and the reasonable trade in price on the 2014. I now have 13,000 miles on the 2015 and feel that it is also an … excellent truck with many more amenities. The safety features to include back-up camera, parking warning, lane changing, navigation and hands free make for a very safe truck. I have not been able to attain quite the mileage I got on my 2014 even though I have a tonneau cover and drive the truck in a similar manner. The best I have been able to attain is 21.6 on a long trip. The advantage of a large vehicle with plenty of interior comfort, good mileage numbers, tons of room for luggage and smooth ride made this vehicle my vehicle of choice over a sedan or suv. I will add on to the information above which has not changed. I took a long trip to Michigan and pretty much backed up what I ha determined in the first review that I sent to you. I did attain 22mpg on one leg of the trip and 21.5 on the second leg of the trip. Truck still very comfortable, spacious and has given me absolutely no problems. I have had the oil, filter and tires rotated on schedule and had one recall corrected on the airbag system. I have owned the truck now for 25 months and still feel that it is a nice looking well made vehicle. I took a recent trip and was able to get 23.0 mpg which is slightly higher than advertised. The sweet spot is right about 70mph when the 5.3L engine is in 4v and on flat terrain. In that configuration it gets excellent mileage. The other sweet spot is driving a steady 55mph when the truck is in 4v. Presently I have 22,500 miles on the odometer and I am very satisfied with the vehicle. This is my third review after owning the truck for two and a half years. I have over 27,000 miles on the truck so far with no problems. I did notice that my transmission temp was running much hotter than the allison transmission that I have in my diesel but in looking into it further I found that 190 degrees is not an unusual temperature for this engine and transmission combination. This is my fourth review of my Sierra 1500 Crew Cab with just over 37,000 miles. So far so good, the truck continues to run very well with no complaints.. I changed the oil and filter myself and was surprised to see that the 5.3 liter engine takes 8.5 quarts of 0w-20 oil. In looking at the new GMC Sierra's as well as Ford and Ram 1500 series trucks I am amazed at how many gadgets they have placed in these vehicles with a corresponding price increase. Almost all of these vehicles are now priced in the mid 60 thousand dollar price range and the manufacturers are offering 10 year financing. Unbelievable!!! I recently replaced all four tires at 46,000 miles. They were original equipment and wore well. They were Goodyear Wrangler 275/55R20's. There was still probably 10.000 miles of wear left but I am not sure they would have been good for winter 9 months from now. My first check engine light came on indicating an evaporations leak code po455. I replaced the gas cap which of course did not fix it so I will find out what the problem is when I get the truck inspected this month. The evap system leak was found and determined to be a crack in a hose that was replaced and check engine light disappeared. I have taken trips using the range plug in unit that keeps my engine running on 8 cylinders all the time and I still was getting 21.5 mpg. Still no problems to speak of and still a handsome truck. At 51,000 miles I had all the fluids changed to include transmission, coolant, differential and transaxles. I now have 63,000 on the truck. I did have to replace the battery about 6 months ago but other than that absolutely no problems.
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Used 2015 GMC Sierra 1500 in Atlanta, GA Values

Estimated values
2015 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$15,708$18,636$20,574
Clean$15,100$17,874$19,690
Average$14,086$16,605$18,215
Rough$12,769$14,955$16,298

The average list price of a used 2015 GMC Sierra 1500 in Atlanta, Georgia is $19,679. The average mileage on a used GMC Sierra 1500 2015 for sale in Atlanta, Georgia is 133,706. Based on the average mileage of 133,706 for used 2015 GMC Sierra 1500 for sale in Atlanta, GA 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 2015 in Atlanta, Georgia to be $14,086.

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