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  • $24,243
    great price
    $3,263 below market
    • 95,185 miles
    • 5 accidents, 3 owners, corporate fleet vehicle
    • 7 Seats, 15 City / 22 Hwy MPG
    • Maserati of Monmouth (80 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Ocean Township, NJ / 80 miles away from Allentown, PA

    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: 1GKS2GKCXJR228673
    Stock: 1GKS2GKCXJR228673
    Certified Pre-Owned: No
    Listed since: 04-09-2025

  • Price Drop
    $25,674
    fair price
    $397 above market
    • 105,188 miles
    • No accidents, 2 owners, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Excel Auto Lounge (55 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hightstown, NJ / 55 miles away from Allentown, PA

    4WD.Clean CARFAX. Crimson Red Tintcoat 2018 GMC Yukon XL Denali 4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V8Odometer is 3634 miles below m...

    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: 1GKS2HKJ6JR283884
    Stock: JR283884
    Certified Pre-Owned: No
    Listed since: 06-09-2025

  • $18,299
    great price
    $5,654 below market
    • 131,688 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 7 Seats, 14 City / 21 Hwy MPG
    • Auto Spot of Mountain Lakes (57 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Mountain Lakes, NJ / 57 miles away from Allentown, PA

    Price includes all costs to be paid by consumer, except for licensing costs, registration fees, retail package, title and taxes. Any monetary discount...

    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: 1GKS2GKC0KR159316
    Stock: 159316-16
    Certified Pre-Owned: No

  • $23,999
    fair price
    $1,959 below market
    • 97,525 miles
    • 1 accident, 1 owner, personal use only
    • 8 Seats, 16 City / 23 Hwy MPG
    • AutoBay (49 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Burlington, NJ / 49 miles away from Allentown, PA

    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 (16 City/23 Highway)

    Listing Information:

    VIN: 1GKS1GKC8JR337443
    Stock: T2861k1
    Certified Pre-Owned: No

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 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.
  • $26,995
    good price
    $2,145 below market
    • 86,991 miles
    • 2 accidents, 1 owner, personal use
    • 7 Seats, 14 City / 20 Hwy MPG
    • Auto Haus of Irvington (66 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Irvington, NJ / 66 miles away from Allentown, PA

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ1HR400524
    Stock: Hr400524
    Certified Pre-Owned: No
    Listed since: 07-15-2025

  • $24,265
    fair price
    $673 above market
    • 130,160 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Kelly Buick GMC (4 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Emmaus, PA / 4 miles away from Allentown, PA

    Local trade, well-maintained with 16 Service records!! Fully Serviced, new inspection!!Our Risk Free story includes: 1) 3 day or 150 mile money back...

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ6HR194343
    Stock: G252013M
    Certified Pre-Owned: No
    Listed since: 07-24-2025

  • $29,985
    fair price
    $57 above market
    • 99,794 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Fast Track Motors (73 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Paterson, NJ / 73 miles away from Allentown, PA

    2019 GMC YULON!!! XL!!! DENALI!!! 6.2L V8!!! 4X4!!! ONE OWNER!!! CLEAN CARFAX!!! LEATHER INTERIOR...HEATED SEATS...COOLED SEATS...POWER SEATS...MEMORY...

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ1KR387118
    Stock: FT07660
    Certified Pre-Owned: No
    Listed since: 05-01-2025

  • New Listing
    $24,500
    good price
    $3,770 below market
    • 122,899 miles
    • 1 accident, 2 owners, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • CAR2SELL (55 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in East Windsor, NJ / 55 miles away from Allentown, PA

    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: 1GKS2JKC4KR340366
    Stock: KR340366
    Certified Pre-Owned: No

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 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.
  • $21,500
    great price
    $8,584 below market
    • 98,220 miles
    • No accidents, 2 owners, rental vehicle
    • 8 Seats, 15 City / 22 Hwy MPG
    • US Auto Auction (51 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pennsauken, NJ / 51 miles away from Allentown, PA

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKCXJR295354
    Stock: 295354
    Certified Pre-Owned: No
    Listed since: 07-27-2025

  • New Listing
    $25,995
    great price
    $5,893 below market
    • 104,910 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8 Seats, 15 City / 22 Hwy MPG
    • Woodcrest Motors (44 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Stevens, PA / 44 miles away from Allentown, PA

    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 (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC4JR256324
    Stock: 256324
    Certified Pre-Owned: No
    Listed since: 08-01-2025

  • $24,987
    fair price
    $832 below market
    • 111,834 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Speedway Motors (73 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Paterson, NJ / 73 miles away from Allentown, PA

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ6HR271423
    Stock: MZR271423
    Certified Pre-Owned: No

  • $21,900
    great price
    $3,951 below market
    • 147,451 miles
    • 1 accident, 1 owner, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Fuzzy Dice Auto Sales (21 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Harleysville, PA / 21 miles away from Allentown, PA

    2018 GMC YUKON XL DENALI! ONE OWNER, 4WD, NAVIGATIONAL SYSTEM, BACKUP CAMERA, HEATED & COOLED SEATS, LANE KEEP ASSIST, BLUETOOTH WIRELESS, QUAD SEATIN...

    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: 1GKS2HKJ1JR240117
    Stock: 2053
    Certified Pre-Owned: No
    Listed since: 06-09-2025

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 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.
    • 82,969 miles
    • 2 accidents, 2 owners, personal use
    • 7 Seats, 14 City / 20 Hwy MPG
    • Douglas Volkswagen of Summit (59 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Summit, NJ / 59 miles away from Allentown, PA

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ0HR175528
    Stock: 39779U
    Certified Pre-Owned: No
    Listed since: 07-23-2025

  • Price Drop
    $24,511
    good price
    $4,376 below market
    • 120,789 miles
    • No accidents, 2 owners, personal use only
    • 8 Seats, 14 City / 23 Hwy MPG
    • Fred Beans Lincoln (26 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Doylestown, PA / 26 miles away from Allentown, PA

    This 2018 GMC Yukon XL Denali in White Frost Tricoat delivers full-size luxury, advanced safety, and exceptional capability. Powered by a 6.2L EcoTec3...

    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: 1GKS1HKJ4JR299746
    Stock: LD501201
    Certified Pre-Owned: No
    Listed since: 04-30-2025

  • Price Drop
    $24,990
    good price
    $3,499 below market
    • 94,920 miles
    • 2 accidents, 3 owners, personal use
    • 7 Seats, 14 City / 23 Hwy MPG
    • Bomnin Chevrolet Buick GMC Nanuet (85 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Nanuet, NY / 85 miles away from Allentown, PA

    Priced below KBB Fair Purchase Price! Odometer is 13712 miles below market average! 3rd Row DVD Screen, 4-Wheel Antilock Disc Brakes, 5 Auxiliary 12-v...

    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: 1GKS1HKJ8JR190304
    Stock: B190304A
    Certified Pre-Owned: No
    Listed since: 07-03-2025

  • New Listing
    $24,990
    good price
    $3,264 below market
    • 126,946 miles
    • 1 accident, 2 owners, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Bomnin Chevrolet Buick GMC Nanuet (85 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Nanuet, NY / 85 miles away from Allentown, PA

    Recent Arrival! 4WD, 3rd Row DVD Screen, 4-Wheel Antilock Disc Brakes, 4-Wheel Disc & 4-Wheel VAC Power Antilock Brakes, 5 Auxiliary 12-volt Power Out...

    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: 1GKS2HKJ8JR343339
    Stock: B343339A
    Certified Pre-Owned: No
    Listed since: 07-27-2025

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 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.
  • $33,381
    good price
    $2,339 below market
    • 78,339 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 21 Hwy MPG
    • Nielsen Ford of Morristown (55 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Morristown, NJ / 55 miles away from Allentown, PA

    Satin Steel Metallic 2020 GMC Yukon XL SLT Standard Edition 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 4WD.We pride ourselves 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: No

    Features and Specs:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2JKC1LR238721
    Stock: V5316A
    Certified Pre-Owned: No
    Listed since: 06-30-2025

  • $27,283
    good price
    $1,929 below market
    • 102,791 miles
    • No accidents, 1 owner, personal use
    • 8 Seats, 15 City / 22 Hwy MPG
    • Ciocca Hyundai (14 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Quakertown, PA / 14 miles away from Allentown, PA

    Excellent Condition. Third Row Seat, Heated/Cooled Leather Seats, Heated Rear Seat, Rear Air, Power Liftgate, Captains Chairs, 4x4, Chrome Wheels, Tra...

    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: 1GKS2GKC5JR355640
    Stock: 20185640
    Certified Pre-Owned: No
    Listed since: 07-22-2025

  • New Listing
    $16,500
    great price
    $3,598 below market
    • 157,440 miles
    • 7 Seats, 14 City / 20 Hwy MPG
    • NJ Exotic Motors (66 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Elizabeth, NJ / 66 miles away from Allentown, PA

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    16 Combined MPG (14 City/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4GR293595
    Stock: 293595
    Certified Pre-Owned: No

  • Price Drop
    $35,500
    fair price
    $1,470 above market
    • 98,283 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Holman Lincoln Mount Laurel (55 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Mt. Laurel, NJ / 55 miles away from Allentown, PA

    4WD. Originally, Holman Automotive did not stock vehicles like the selection you've clicked on today. Our commitment to our clients is to provide the ...

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4LR181213
    Stock: LR181213
    Certified Pre-Owned: No
    Listed since: 06-23-2025

  • $35,995
    fair price
    $1,528 below market
    • 73,381 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 14 City / 21 Hwy MPG
    • Premier Auto Group NJ (63 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Blackwood, NJ / 63 miles away from Allentown, PA

    Premier Auto Group Calvin Huss 107 Ganttown Rd Turnersville, NJ 0**** 8**-2**-1900 Get ready to elevate your driving experience with this sleek and po...

    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:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4JR191768
    Stock: 2W2336
    Certified Pre-Owned: No
    Listed since: 04-22-2025

Showing 1 - 21 out of 321 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 Allentown, PA Values

Estimated values
2018 GMC Yukon XL SLT 4dr SUV 4WD (5.3L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$17,361$21,279$24,505
Clean$16,983$20,801$23,938
Average$16,353$20,004$22,992
Rough$15,533$18,968$21,763

The average list price of a used 2018 GMC Yukon XL in Allentown, Pennsylvania is $25,969. The average mileage on a used GMC Yukon XL 2018 for sale in Allentown, Pennsylvania is 107,986. Based on the average mileage of 107,986 for used 2018 GMC Yukon XL for sale in Allentown, PA 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 Allentown, Pennsylvania to be $16,353.

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