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1,586 listings
    • 107,867 miles
    • No accidents, 3 owners, personal use only
    • 5'10” bed, 3l, 6cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Abilene, TX / 683 miles away from Apache Junction, AZ

    CarFax No Accidents Reported,Rare Find,Apple CarPlay,Back-Up Camera,Bluetooth,Turbo/Supercharged,WiFi Hotspot,Diesel Fuel,Power Door Locks,Floor Mats,...

    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: 3GTU9BET0LG340254
    Stock: 38498TV
    Certified Pre-Owned: No

  • New Listing
    • 135,505 miles
    • Trucks Only - Mesa (17 mi away)
    Close

    Located in Mesa, AZ / 17 miles away from Apache Junction, AZ

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 1GTU9FED7KZ187645
    Stock: 5-1221
    Certified Pre-Owned: No
    Listed since: 06-03-2025

  • New Listing
    • 85,159 miles
    • 1 accident, 1 owner, personal use only
    • 5'10” bed, 5.3l, 8cyl
    • Henry Brown Buick GMC (15 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Gilbert, AZ / 15 miles away from Apache Junction, AZ

    Leather, 1 Owner, Local Trade, 8-Speed Automatic, Dark Walnut/Slate Leather. Recent Arrival! CARFAX One-Owner. Clean CARFAX. 2021 White Frost Tricoat ...

    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:

    19 Combined MPG (17 City/23 Highway)

    Listing Information:

    VIN: 3GTP8DED9MG203660
    Stock: 25T2309A
    Certified Pre-Owned: No
    Listed since: 07-15-2025

  • New Listing
    Stock photo**
    • 82,295 miles
    • 6'7” bed, 4.3l, 6cyl
    • Henry Brown Buick GMC (15 mi away)
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Gilbert, AZ / 15 miles away from Apache Junction, AZ

    NA.

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    17 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 1GTR8AEH1MZ279982
    Stock: 25T306B
    Certified Pre-Owned: No
    Listed since: 07-14-2025

  • 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
    • 102,802 miles
    • 5'10” bed, 5.3l, 8cyl
    • Nation AutoHub (32 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Phoenix, AZ / 32 miles away from Apache Junction, AZ

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 1GTU9BEDXKZ383040
    Stock: 383040
    Certified Pre-Owned: No
    Listed since: 07-18-2025

  • $35,499
    great price
    $10,427 below market
    • 95,015 miles
    • 1 accident, 2 owners, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wexford, PA / 1,796 miles away from Apache Junction, AZ

    Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Chrome Wheels,Heads-Up Display,Heated Seats,Heated Steering Wheel,Keyless Start...

    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: 1GTU9FEL5LZ159142
    Stock: V159142A
    Certified Pre-Owned: No

  • Price Drop
    $44,032
    great price
    $5,524 below market
    • 60,725 miles
    • 1 accident, 1 owner, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Liberty GMC (43 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Peoria, AZ / 43 miles away from Apache Junction, AZ

    Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4 4WD 10-Speed Automatic EcoTec3 6.2L V8 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.O...

    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: 1GTP9EEL9LZ326738
    Stock: G51238A
    Certified Pre-Owned: No
    Listed since: 06-29-2025

  • Price Drop
    $38,052
    good price
    $3,766 below market
    • 38,217 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 5.3l, 8cyl
    • Quebedeaux Buick GMC (90 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Keyless Entry/Start
    Close

    Located in Tucson, AZ / 90 miles away from Apache Junction, AZ

    Onyx Black 2022 GMC Sierra 1500 Elevation 4WD 10-Speed Automatic EcoTec3 5.3L V8 10-Speed Automatic, 4WD, Black Cloth.DAILY INTERNET SPECIALS FOUND ON...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GTRUCED0NZ622254
    Stock: 35953A
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • 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.
  • $42,530
    good price
    $3,730 below market
    • 67,639 miles
    • 1 accident, 1 owner, personal use only
    • 5'10” bed, 3l, 6cyl
    • Henry Brown Buick GMC (15 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Gilbert, AZ / 15 miles away from Apache Junction, AZ

    Back Up Camera, 1 Owner, Local Trade, 10-Speed Automatic, 4WD, Jet Black Cloth. Recent Arrival! CARFAX One-Owner. Clean CARFAX. 2022 Titanium Rush Met...

    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: 3GTUUCET9NG534739
    Stock: 25T1874A
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • Price Drop
    $46,762
    good price
    $3,691 below market
    • 22,720 miles
    • No accidents, 1 owner, personal use only
    • 5'10” bed, 3l, 6cyl
    • AutoNation USA Phoenix (36 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Phoenix, AZ / 36 miles away from Apache Junction, AZ

    Slt Premium PackageSlt Convenience Package3 Years Of Onstar & Connected Services PlanX31 Off-Road PackageWheels; 20" Polished Aluminum WheelsEngi...

    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: 3GTUUDETXNG632099
    Stock: NG632099
    Certified Pre-Owned: No
    Listed since: 05-12-2025

    • 22,212 miles
    • No accidents, 1 owner, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in San Antonio, TX / 817 miles away from Apache Junction, AZ

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 3GTU9DEL1LG343109
    Stock: 2003857370
    Certified Pre-Owned: No
    Listed since: 07-05-2025

  • $41,960
    good price
    $3,320 below market
    • 27,972 miles
    • No accidents, 1 owner, personal use only
    • 5'10” bed, 2.7l, 4cyl
    • Henry Brown Buick GMC (15 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Keyless Entry/Start
    Close

    Located in Gilbert, AZ / 15 miles away from Apache Junction, AZ

    1 Owner, Local Trade, 8-Speed Automatic, 4WD, Black Cloth. Recent Arrival! Odometer is 11195 miles below market average! CARFAX One-Owner. Clean CARFA...

    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 (17 City/20 Highway)

    Listing Information:

    VIN: 3GTPUCEK1NG675129
    Stock: 25T1075C
    Certified Pre-Owned: No
    Listed since: 05-23-2025

  • 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.
    • 93,906 miles
    • No accidents, 1 owner, personal use only
    • 5'10” bed, 5.3l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Houston, TX / 977 miles away from Apache Junction, AZ

    Apple CarPlay,Back-Up Camera,Bluetooth,Keyless Start,Remote Start,Turbo/Supercharged,WiFi Hotspot,Power Door Locks,Floor Mats,Gasoline Fuel,ABS,Rear W...

    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: 3GTP8CED6LG176250
    Stock: LG176250P
    Certified Pre-Owned: No

  • $43,444
    fair price
    $163 below market
    • 86,652 miles
    • No accidents, 2 owners, personal use only
    • 5'10” bed, 3l, 6cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Medford, OR / 867 miles away from Apache Junction, AZ

    CarFax No Accidents Reported,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heads-Up Display,Heated Seats,Heated Ste...

    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: 1GTU9EET1LZ326705
    Stock: LZ326705H
    Certified Pre-Owned: No

  • New Listing
    $43,998
    good price
    $4,793 below market
    • 64,035 miles
    • No accidents, 2 owners, personal use
    • 5'10” bed, 6.2l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from VA to AZ*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Virginia Beach, VA / 2,005 miles away from Apache Junction, AZ

    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: 3GTP9EEL0LG412391
    Stock: 26918638
    Certified Pre-Owned: No

  • $39,998
    fair price
    $1,595 below market
    • 76,841 miles
    • No accidents, 2 owners, personal use only
    • 5'10” bed, 3l, 6cyl
    • CarMax (In-stock online)
    • Transfer available from GA to AZ*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Norcross, GA / 1,570 miles away from Apache Junction, AZ

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 3GTU9DET8LG425371
    Stock: 27250973
    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
    $35,818
    good price
    $3,998 below market
    • 101,369 miles
    • No accidents, 2 owners, personal use only
    • 5'10” bed, 3l, 6cyl
    • Ed Morse Honda (149 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Sierra Vista, AZ / 149 miles away from Apache Junction, AZ

    Clean Auto Check Report, 2 Owners, Arizona Vehicle, 2020 GMC Sierra 1500 SLT, Convenience Package, Premium Plus Package, Keyless Start, Power Rear Win...

    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: 3GTU9DET4LG388562
    Stock: 25H200A
    Certified Pre-Owned: No
    Listed since: 06-12-2025

  • New Listing
    $32,900
    good price
    $3,482 below market
    • 129,841 miles
    • 1 accident, 1 owner, personal use only
    • 5'10” bed, 3l, 6cyl
    • 1st Class Motors (33 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Phoenix, AZ / 33 miles away from Apache Junction, AZ

    ***** 2020 GMC SIERRA 1500 AT4 4X4***** 3.0L I6 Turbocharger DIESEL BLUETOOTH BACK-UP CAMERA NAVIGATION SYSTEM HEATED SEATS SUNROOF REARVIEW M...

    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: 3GTU9EET8LG260539
    Stock: 260539
    Certified Pre-Owned: No
    Listed since: 05-07-2025

  • Price Drop
    $41,006
    good price
    $4,543 below market
    • 52,568 miles
    • No accidents, 2 owners, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Cranberry, PA / 1,798 miles away from Apache Junction, AZ

    CarFax 1-Owner,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Chrome Wheels,Heads-Up Display,Heated Seats,Heated Steering Whee...

    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: 3GTU9FEL7LG442626
    Stock: T442626A
    Certified Pre-Owned: No

    • 81,366 miles
    • 1 accident, 1 owner, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Abilene, TX / 683 miles away from Apache Junction, AZ

    CarFax 1-Owner,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heads-Up Display,Heated Seats,Heated Steering Wheel,Ke...

    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: 3GTP9EEL9LG222203
    Stock: 38645TV
    Certified Pre-Owned: No

  • $52,195
    fair price
    $1,439 above market
    • 41,647 miles
    • No accidents, 1 owner, personal use only
    • 5'10” bed, 6.2l, 8cyl
    • Henry Brown Buick GMC (15 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Gilbert, AZ / 15 miles away from Apache Junction, AZ

    Leather, Back Up Camera, Local Trade, 10-Speed Automatic, 4WD, Leather. Recent Arrival! CARFAX One-Owner. 2022 White GMC Sierra 1500 AT4 4WD Henry Bro...

    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: 3GTPUEEL2NG553304
    Stock: 25T1884A
    Certified Pre-Owned: No
    Listed since: 06-04-2025

Showing 484 - 504 out of 1,586 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 2020 GMC Sierra 1500 in Apache Junction, AZ Values

Estimated values
2020 GMC Sierra 1500 SLE 4dr Crew Cab 4WD 5.8 ft. SB (3.0L 6cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$25,042$27,691$30,246
Clean$24,512$27,088$29,569
Average$23,627$26,083$28,442
Rough$22,478$24,777$26,977

The average list price of a used 2020 GMC Sierra 1500 in Apache Junction, Arizona is $39,478. The average mileage on a used GMC Sierra 1500 2020 for sale in Apache Junction, Arizona is 75,064. Based on the average mileage of 75,064 for used 2020 GMC Sierra 1500 for sale in Apache Junction, AZ 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 Apache Junction, Arizona to be $23,627.

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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.