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200 listings
  • $17,499
    great price
    $7,984 below market
    • 107,095 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 22 Hwy MPG
    • AutoNation Buick GMC West (63 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Golden, CO / 63 miles away from Fort Collins, CO

    Sunroof; Power; Tilt-SlidingAdaptive Cruise ControlHd Trailering PackageSun/MoonroofLeather SeatsAudio System; 8" Diagonal Color Touch Screen Nav...

    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: 1GKS2GKCXJR366259
    Stock: JR366259
    Certified Pre-Owned: No
    Listed since: 06-16-2025

  • New Listing
    $40,999
    great price
    $8,119 below market
    • 20,853 miles
    • 7 Seats, 14 City / 21 Hwy MPG
    • AutoNation Buick GMC West (63 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Golden, CO / 63 miles away from Fort Collins, CO

    Leather SeatsNavigation System3rd Row SeatLane Keeping AssistKeyless StartHeads-Up DisplayCooled Front Seat(S)Engine; 6.2L Ecotec3 V8This ve...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ0JR177897
    Stock: JR177897
    Certified Pre-Owned: No
    Listed since: 08-04-2025

  • $37,797
    great price
    $5,634 below market
    • 113,894 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 19 Hwy MPG
    • AutoNation Buick GMC Park Meadows (74 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Lone Tree, CO / 74 miles away from Fort Collins, CO

    Leather SeatsNavigation System3rd Row SeatLane Keeping AssistKeyless StartHeads-Up DisplayCooled Front Seat(S)Engine; 6.2L Ecotec3 V8This 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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL1MR183110
    Stock: MR183110
    Certified Pre-Owned: No
    Listed since: 07-28-2025

  • New Listing
    Stock photo**
    $17,999
    great price
    $2,670 below market
    • 116,506 miles
    • 8 Seats, 15 City / 22 Hwy MPG
    • Mercedes-Benz Of Denver (65 mi away)
    • Five Star Dealer
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Third-row seating
    • Power Driver Seat
    Close

    Located in Denver, CO / 65 miles away from Fort Collins, CO

    PREFERRED EQUIPMENT GROUP, VALUE PACKAGE, CONVENIENCE PACKAGE, SUSPENSION PACKAGE, 4WD, 8" diagonal Color Touch Screen with Intellilink, Voice-activat...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2FKC9HR231150
    Stock: MHR231150
    Certified Pre-Owned: No
    Listed since: 07-30-2025

  • Advertisement

    2 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.
  • Price Drop
    $61,800
    good price
    $4,984 below market
    • 48,735 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 19 Hwy MPG
    • Lakeside Auto Brokers (126 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Colorado Springs, CO / 126 miles away from Fort Collins, CO

    Odometer is 24192 miles below market average!Midnight Blue Metallic 2021 GMC Yukon XL Denali Ultimate 4WD 10-Speed Automatic with Overdrive EcoTec3 6...

    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/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL6MR188383
    Stock: P16983
    Certified Pre-Owned: No
    Listed since: 04-30-2025

    • 110,131 miles
    • No accidents, 3 owners, rental vehicle
    • 7 Seats, 14 City / 20 Hwy MPG
    • Auto Aves (63 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lakewood, CO / 63 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4LR196388
    Stock: 14179
    Certified Pre-Owned: No

  • $54,389
    good price
    $4,949 below market
    • 61,838 miles
    • 1 accident, 1 owner, personal use
    • 7 Seats, 14 City / 19 Hwy MPG
    • Johnson Auto Plaza (49 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brighton, CO / 49 miles away from Fort Collins, CO

    **Carfax 1-Owner** **GM Certified Pre-Owned** **Yukon XL Denali** *Denali Premium Package with 22-in Bright-Machined Aluminum Wheels, Power Assist Ste...

    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/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL2MR425970
    Stock: 15733Z
    Certified Pre-Owned: Yes
    Listed since: 06-11-2025

  • Price Drop
    $36,590
    fair price
    $1,029 below market
    • 95,851 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tampa, FL / 1,551 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ6KR387194
    Stock: 2003870532
    Certified Pre-Owned: No
    Listed since: 07-03-2025

  • Advertisement

    2 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.
  • $33,595
    fair price
    $1,773 below market
    • 113,102 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Lindner Chevrolet (151 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Canon City, CO / 151 miles away from Fort Collins, CO

    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: 1GKS2HKJXKR366123
    Stock: 2544281
    Certified Pre-Owned: No
    Listed since: 07-22-2025

    • 60,305 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Dallas, TX / 709 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ0KR139913
    Stock: 2003877358
    Certified Pre-Owned: No
    Listed since: 07-14-2025

  • $28,989
    good price
    $1,971 below market
    • 67,153 miles
    • 3 accidents, 3 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • AutoNation Buick GMC Park Meadows (74 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lone Tree, CO / 74 miles away from Fort Collins, CO

    Open Road PackageEntertainment System; Rear Seat Blu-Ray/DvdSunroof; Power; Tilt-SlidingSun/MoonroofLeather SeatsNavigation System3rd Row SeatL...

    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: 1GKS2HKJ4HR313488
    Stock: HR313488
    Certified Pre-Owned: No
    Listed since: 07-21-2025

  • Stock photo**
    $24,200
    good price
    $1,637 below market
    • 120,374 miles
    • 7 Seats, 14 City / 20 Hwy MPG
    • AutoNation Buick GMC West (63 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Golden, CO / 63 miles away from Fort Collins, CO

    This vehicle includes a Money-Back Guarantee* and passed our precise inspection process. Best of all the price you see is the price you pay. No haggli...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    16 Combined MPG (14 City/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJNHR127249
    Stock: HR127249
    Certified Pre-Owned: No
    Listed since: 07-21-2025

  • Advertisement

    2 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.
  • New Listing
    $41,998
    fair price
    $2,198 below market
    • 56,568 miles
    • 2 accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 23 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from FL to CO*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Brandenton, FL / 1,569 miles away from Fort Collins, CO

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

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJ2KR402843
    Stock: 27638548
    Certified Pre-Owned: No

    • 47,148 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 7 Seats, 14 City / 23 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Dallas, TX / 709 miles away from Fort Collins, CO

    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: 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:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJ8KR184813
    Stock: 2003880541
    Certified Pre-Owned: No
    Listed since: 07-19-2025

  • New Listing
    • 99,470 miles
    • No accidents, 4 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tampa, FL / 1,551 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ4KR404929
    Stock: 2003879634
    Certified Pre-Owned: No
    Listed since: 07-08-2025

  • Price Drop
    $40,590
    fair price
    $804 above market
    • 81,377 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Indianapolis, IN / 996 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ2KR136107
    Stock: 2003906475
    Certified Pre-Owned: No
    Listed since: 07-22-2025

  • Advertisement

    2 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.
  • Price Drop
    $41,590
    fair price
    $1,195 above market
    • 77,790 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Chicago, IL / 869 miles away from Fort Collins, CO

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ5KR266477
    Stock: 2003910339
    Certified Pre-Owned: No
    Listed since: 07-19-2025

    • 54,171 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 23 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Oklahoma City, OK / 543 miles away from Fort Collins, CO

    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:

    17 Combined MPG (14 City/23 Highway)

    Listing Information:

    VIN: 1GKS1HKJ5KR227617
    Stock: 2003840914
    Certified Pre-Owned: No
    Listed since: 06-26-2025

  • New Listing
    • 94,812 miles
    • No accidents, 5 owners, rental vehicle
    • 8 Seats, 14 City / 21 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Charlotte, NC / 1,368 miles away from Fort Collins, CO

    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: 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: 1GKS2GKCXKR346630
    Stock: 2003827207
    Certified Pre-Owned: No
    Listed since: 06-28-2025

  • New Listing
    • 174,877 miles
    • No accidents, 2 owners, personal use only
    • 8 Seats, 14 City / 21 Hwy MPG
    • Big Jons Auto (64 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Denver, CO / 64 miles away from Fort Collins, CO

    2019 GMC Yukon XL SLT - The Ultimate Family and Hauling Machine

    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: 1GKS2GKC4KR271181
    Stock: 271181
    Certified Pre-Owned: No
    Listed since: 08-02-2025

  • New Listing
    $41,990
    fair price
    $933 above market
    • 44,358 miles
    • 7 Seats, 14 City / 23 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Richmond, VA / 1,478 miles away from Fort Collins, CO

    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: 1GKS1HKJ8KR183287
    Stock: 2003877493
    Certified Pre-Owned: No
    Listed since: 07-18-2025

Showing 1 - 21 out of 200 listings

Consumer Reviews for the GMC Yukon XL

Read recent reviews for the GMC Yukon XL
Overall Consumer Rating
4 out of 5 stars42 Reviews
Write a vehicle reviewSee all 42 reviews
  • 5 star
    (62%)
  • 4 star
    (7%)
  • 3 star
    (12%)
  • 2 star
    (7%)
  • 1 star
    (12%)
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 Fort Collins, CO Values

Estimated values
2018 GMC Yukon XL SLT 4dr SUV 4WD (5.3L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$18,018$21,552$24,462
Clean$17,626$21,068$23,896
Average$16,972$20,261$22,952
Rough$16,121$19,212$21,726

The average list price of a used 2018 GMC Yukon XL in Fort Collins, Colorado is $36,531. The average mileage on a used GMC Yukon XL 2018 for sale in Fort Collins, Colorado is 84,115. Based on the average mileage of 84,115 for used 2018 GMC Yukon XL for sale in Fort Collins, CO 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 Fort Collins, Colorado to be $16,972.

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