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1,646 listings
  • New Listing
    $29,000
    great price
    $5,066 below market
    • 91,842 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Auto Fanatics (327 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Fredericksburg, VA / 327 miles away from Myrtle Beach, SC

    2018 GMC Yukon XL Denali 4WD! CLEAN CARFAX, 2 previous owners, 15 documented service records, and loaded with luxury, space, and capability this full-...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ3JR312029
    Stock: AF1200
    Certified Pre-Owned: No
    Listed since: 05-04-2025

  • New Listing
    Stock photo**
    $27,611
    great price
    $5,384 below market
    • 85,972 miles
    • No accidents, 3 owners, personal use
    • 7 Seats, 15 City / 22 Hwy MPG
    • John Thornton Buick GMC (354 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Carrollton, GA / 354 miles away from Myrtle Beach, SC

    Recent Arrival! Thank you for considering this beautiful 2018 GMC Yukon XL SLT finished in stunning White Frost Tricoat with Cocoa/Dune Leather.Odomet...

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC8JR132007
    Stock: SG719A
    Certified Pre-Owned: No
    Listed since: 08-27-2025

  • $22,900
    great price
    $3,428 below market
    • 135,641 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Safford Brown Subaru Manassas (362 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Manassas, VA / 362 miles away from Myrtle Beach, SC

    2018 GMC Yukon XL Onyx Black SLT 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 Back up Camera, Bluetooth, Leather Seats, Navigation ...

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC2JR384741
    Stock: P378
    Certified Pre-Owned: No
    Listed since: 07-22-2025

  • $28,450
    great price
    $5,369 below market
    • 94,064 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Waldorf Chevrolet (363 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Waldorf, MD / 363 miles away from Myrtle Beach, SC

    ***ONSTAR, ****NAVIGATION, ***AUTOMATIC, **BACKUP CAMERA, **SUNROOF, **LEATHER, **USB PORTS, ***BLUE TOOTH CAPABLE, ***FOUR WHEEL DRIVE, ***ALLOY 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:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC1JR327575
    Stock: 00PG4137
    Certified Pre-Owned: No
    Listed since: 08-07-2025

  • Price Drop
    $20,000
    great price
    $3,095 below market
    • 127,381 miles
    • 2 accidents, 2 owners, rental vehicle
    • 7 Seats, 15 City / 22 Hwy MPG
    • Hyundai of St Augustine (301 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Saint Augustine, FL / 301 miles away from Myrtle Beach, SC

    ***OPEN ROAD, MEMORY, ENHANCED DRIVER ALERT, & PREMIUM SMOOTH RIDE SUSPENSION PACKAGES! ODOMETER IS 9,671 MILES BELOW MARKET AVERAGE!***KEY FEATURES I...

    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:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC0JR357781
    Stock: SA76021A
    Certified Pre-Owned: No
    Listed since: 07-31-2025

  • $35,697
    good price
    $2,961 below market
    • 71,447 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Honda Carland (312 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Roswell, GA / 312 miles away from Myrtle Beach, SC

    #1 PRICE IN ATLANTA W/UNDER 100K MILES!! Receive a LIFETIME Limited Powertrain Warranty - FREE OF CHARGE!! Clean CARFAX. Summit White 2018 GMC Yukon X...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJXJR393935
    Stock: JR393935
    Certified Pre-Owned: No
    Listed since: 07-26-2025

  • New Listing
    $30,000
    good price
    $3,039 below market
    • 100,287 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Farrish Chrysler Dodge Jeep Ram (371 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Fairfax, VA / 371 miles away from Myrtle Beach, SC

    Recent Arrival! 2018 GMC Yukon XL Denali Onyx Black 10-Speed Automatic with Overdrive EcoTec3 6.2L V8 4WD4WD.Farrish of Fairfax, Stop Clicking and com...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ1JR364002
    Stock: PZ12807A
    Certified Pre-Owned: No
    Listed since: 08-22-2025

  • Price Drop
    $28,777
    fair price
    $1,541 below market
    • 114,424 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 7 Seats, 14 City / 21 Hwy MPG
    • Koons of Woodbridge (354 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Woodbridge, VA / 354 miles away from Myrtle Beach, SC

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ5JR271726
    Stock: 36454
    Certified Pre-Owned: No

  • $23,995
    fair price
    $31 above market
    • 124,857 miles
    • 3 accidents, 1 owner, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Wholesale Direct Auto (74 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wilmington, NC / 74 miles away from Myrtle Beach, SC

    CARFAX One-Owner. Onyx Black 2018 GMC Yukon XL SLT 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V820" x 9" Polished Aluminum Wheels...

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC7JR396514
    Stock: 13177
    Certified Pre-Owned: No
    Listed since: 07-16-2025

  • Price Drop
    $27,863
    fair price
    $1,084 below market
    • 121,373 miles
    • 1 accident, 2 owners, personal use
    • 8 Seats, 14 City / 21 Hwy MPG
    • Gastonia Chevrolet Buick GMC (166 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lowell, NC / 166 miles away from Myrtle Beach, SC

    2018 GMC Yukon XL Denali 4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V8 Dark Sapphire Blue Metallic4WD.THIS VEHICLE INCLUDES THE FOLLOWING F...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ1JR316984
    Stock: T10945A
    Certified Pre-Owned: No
    Listed since: 08-08-2025

  • New Listing
    Stock photo**
    $29,577
    fair price
    $579 below market
    • 105,681 miles
    • No accidents, 3 owners, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Starling Chevrolet GMC (399 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Saint Cloud, FL / 399 miles away from Myrtle Beach, SC

    2018 GMC Yukon XL Denali CLEAN CARFAX, NAVIGATION, SUNROOF, REAR CLIMATE PACKAGE, DVD ENTERTAINMENT SYSTEM, LEATHER, 3RD ROW SEATING, 2ND ROW BUCKET 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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ0JR194957
    Stock: 194957T
    Certified Pre-Owned: No
    Listed since: 08-27-2025

  • New Listing
    $27,000
    fair price
    $321 below market
    • 123,763 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Auto Giants Nissan (355 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Woodbridge, VA / 355 miles away from Myrtle Beach, SC

    NEW PHOTOS ADDED.2018 GMC Yukon XL SLT Quicksilver MetallicKEY FEATURES INCLUDED:, 4WD, 20" x 9" Polished Aluminum Wheels, 3.08 Rear Axle Ratio, 3.42 ...

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKCXJR337022
    Stock: G2352
    Certified Pre-Owned: No
    Listed since: 08-26-2025

  • $31,500
    fair price
    $766 above market
    • 83,623 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Byers Volvo Cars (488 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Columbus, OH / 488 miles away from Myrtle Beach, SC

    2018 Dark Sapphire Blue Metallic GMC Yukon XL 4D Sport Utility Denali 4WD EcoTec3 6.2L V8 This GMC Yukon XL has many features and is well equipped inc...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ9JR309460
    Stock: V266069A
    Certified Pre-Owned: No
    Listed since: 08-20-2025

  • Price Drop
    $11,595
    great price
    $5,447 below market
    • 186,522 miles
    • No accidents, 2 owners, personal use only
    • 8 Seats, 16 City / 23 Hwy MPG
    • Carplug of Alexandria (370 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Alexandria, VA / 370 miles away from Myrtle Beach, SC

    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: 1GKS1GKC0HR288037
    Stock: COA2122
    Certified Pre-Owned: No

  • New Listing
    $31,590
    fair price
    $661 above market
    • 100,846 miles
    • 7 Seats, 14 City / 23 Hwy MPG
    • Carvana - Atlanta (317 mi away)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Atlanta, GA / 317 miles away from Myrtle Beach, SC

    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:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJXJR303606
    Stock: 2003885405
    Certified Pre-Owned: No
    Listed since: 07-29-2025

    • 109,765 miles
    • No accidents, 3 owners, personal use only
    • 7 Seats, 14 City / 23 Hwy MPG
    • Auto Boutique Florida (280 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Jacksonville, FL / 280 miles away from Myrtle Beach, SC

    WHITE FROST TRICOAT, TRANSMISSION, 10-SPEED AUTOMATIC electronically controlled with overdrive, tow/haul mode and tap up/tap down shifting (STD), THEF...

    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:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJ7JR402917
    Stock: 16809B
    Certified Pre-Owned: No
    Listed since: 07-30-2025

  • New Listing
    $25,900
    good price
    $2,433 below market
    • 112,362 miles
    • No accidents, 3 owners, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Autosphere Georgia (293 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Buford, GA / 293 miles away from Myrtle Beach, SC

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC4JR294698
    Stock: 294698
    Certified Pre-Owned: No

  • New Listing
    • 96,326 miles
    • No accidents, 2 owners, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Carvana - Birmingham (454 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Birmingham, AL / 454 miles away from Myrtle Beach, SC

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4JR199577
    Stock: 2003842736
    Certified Pre-Owned: No
    Listed since: 07-01-2025

    • 87,755 miles
    • No accidents, 4 owners, corporate fleet vehicle
    • 7 Seats, 14 City / 21 Hwy MPG
    • Griffin Buick GMC (132 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Monroe, NC / 132 miles away from Myrtle Beach, SC

    Certified.Quicksilver Metallic 2018 GMC Yukon XL Denali4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V8 14/21 City/Highway MPGYukon XL Denali, 4D...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ2JR120293
    Stock: 180293
    Certified Pre-Owned: Yes
    Listed since: 08-16-2025

    • 142,996 miles
    • 1 accident, 1 owner, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • D'NX Motors (257 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Forest, VA / 257 miles away from Myrtle Beach, SC

    For even more great pictures of our inventory, please visit us @ http://DnxMotorSales.com. DNX is one of the Most Competitive Dealers in our area, an...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJXJR346033
    Stock: 4337
    Certified Pre-Owned: No

  • New Listing
    $26,495
    great price
    $6,803 below market
    • 110,156 miles
    • 3 accidents, 1 owner, personal use
    • 7 Seats, 14 City / 23 Hwy MPG
    • Kargar Motors (362 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Manassas, VA / 362 miles away from Myrtle Beach, SC

    BUYING A CAR HAS NEVER BEEN THIS EASY.We specialize in 100% GUARANTEED APPROVAL. BAD CREDIT, NO CREDIT, BANKRUPTCY, REPO, FORECLOSURE...NO PROBLEM. NO...

    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:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJ7KR111836
    Stock: KMM13651
    Certified Pre-Owned: No

Showing 1 - 21 out of 1,646 listings

Consumer Reviews for the GMC Yukon XL

Read recent reviews for the GMC Yukon XL
Overall Consumer Rating
3.9 out of 5 stars36 Reviews
Write a vehicle reviewSee all 36 reviews
  • 5 star
    (58%)
  • 4 star
    (6%)
  • 3 star
    (14%)
  • 2 star
    (8%)
  • 1 star
    (14%)
5 out of 5 stars

XL for empty nesters

Robert Bob, 02/10/2017
2016 GMC Yukon XL Denali 4dr SUV (6.2L 8cyl 8A)
This is a big SUV that doesn't feel big when driving. Easy to park and has a small turning radius. We often have our kids and grandkids with us and routinely haul 7 people in this and love the legroom and cargo room with everyone on board. The ride and quiet cabin are spectacular and the fuel mileage is better than expected. Has tons of torque and pulling our 4,000 lb boat is … effortless. It is easy to back the boat up too with large mirrors and good backup camera. Like the auto leveling rear shocks. My only disappointment in the vehicle is GM's decision to eliminate the ability to pause and rewind live radio that my previous vehicles had. This was available before 2016 but GM eliminated it which is a shame. My 2015 GMC Canyon had this feature but a $70,000 vehicle doesn't. Doesn't make sense! Had trouble with torque converter clutch but dealer was able to resolve with fluid flush and new transmission fluid type. Problem caused shudder or vibration in 8th gear that felt like going over rumble strips. RPM fluctuated between 1600 and 1800 when TCC clutch was not happy. Downshifting into 7th gear would eliminate problem at the expense of poorer gas milage. Problem started at 16,000 miles. Have 17,000 miles on it now and problem is gone after fluid flush and change. Car is very quiet and subsequently any rattles are heard very easily. Chased a problem with a rattling/popping noise that sounded like is was coming from the right side dash area. Disassembled many components inside the glove box/dash area looking for it and finally found the noise was coming from the right front inner fender well! The noise could be duplicated by standing on and off the front part of the running board. The noise was from a loose spot weld on inner fender metal. Placing a section of close cell foam under panel solved the noise! Fixed by owner! Still not happy with GMC 22" wheels that cause harsh and rough ride. 22" wheels should not be an option on this car! Changed to Michelin Defender tires and solved vibration problems with original Bridgestone Dueler tires but this 22" size tire has low profile sidewalls which contributes to tires not absorbing bumps well and transmitting the bumps to the passengers. Car would ride much smoother on 18" or maybe 20" wheels. These wheels were a $2,400 option from GMC and it was a waste of money in my opinion. They are also very hard to keep clean and not very happy with the chrome plastic inserts on the wheels. Just learned the owner can't rotate tires and reset TPMS system without a special tool! This tool should be included with a $70,000 vehicle. Unfortunate that a simple routine simple maintenance task can't be accomplished without the $100 tool or a trip to the dealer or tire shop. If the TPMS system is not updated after wheel rotation, tire positions will not agree with dash display in the event of a tire problem. Have recent issue with powered running boards installed by GMC. They fail to extend when doors are opened occasionally. Both sides are affected. They have been lubricated and problem still exists. Car sits very high on 22” wheels and the running boards are critical for wife or kids to get in. Dealer service visit scheduled to diagnose/repair. Finally got dealer to recognize my intermittent running board problem by taking multiple video captures when they failed to extend or retract. They replaced the motors on both sides and they are now working normally. Torque converter clutch shudder returned at 35,000 miles. Dealer replaced trans fluid with a newer updated fluid that doesn’t absorb moisture. Problem has been resolved for now, again! Noticed leaking left axle seal while rotating tires. Taking back to dealer again to repair! Too bad the dealer didn’t notice this problem while changing trans fluid a week earlier! Still love the car and there is nothing comparable in the marketplace. Average MPG on Hwy is 23 and 19 around town. Added oil "catch can" at 37,000 miles and cleaned intake manifold and valves prior to addition. The catch can captures about 4 oz of breather oil every 4,000 miles. Running Amsoil Signature 0W-20 oil full synthetic with once a year change. Catch can should be installed when new to keep intake valves and manifold clean. GDI engines are prone to carbon buildup on valves due to design.
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Used 2018 GMC Yukon XL in Myrtle Beach, SC Values

Estimated values
2018 GMC Yukon XL Denali 4dr SUV 4WD (6.2L 8cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$22,575$26,663$30,029
Clean$22,083$26,064$29,334
Average$21,263$25,066$28,176
Rough$20,198$23,768$26,670

The average list price of a used 2018 GMC Yukon XL in Myrtle Beach, South Carolina is $27,563. The average mileage on a used GMC Yukon XL 2018 for sale in Myrtle Beach, South Carolina is 110,813. Based on the average mileage of 110,813 for used 2018 GMC Yukon XL for sale in Myrtle Beach, 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 Yukon XL 2018 in Myrtle Beach, South Carolina to be $21,263.

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