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  • New Listing
    $48,590
    fair price
    $1,952 above market
    • 80,853 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 15 City / 19 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Los Angeles, CA / 2,283 miles away from Port Saint Lucie, FL

    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 (15 City/19 Highway)

    Listing Information:

    VIN: 1GKS2HKD7MR296397
    Stock: 2003691646
    Certified Pre-Owned: No
    Listed since: 05-08-2025

  • $46,791
    fair price
    $1,723 above market
    • 101,090 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Gerald Jones GMC (439 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Graniteville, SC / 439 miles away from Port Saint Lucie, FL

    2021 GMC Yukon XL Denali Onyx Black 4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V84WD.CARFAX One-Owner. Clean CARFAX.

    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: 1GKS2JKL9MR222770
    Stock: 620791A
    Certified Pre-Owned: No
    Listed since: 06-01-2025

  • Price Drop
    • 86,193 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Roseburg, OR / 2,617 miles away from Port Saint Lucie, FL

    CarFax No Accidents Reported,CarFax 1-Owner,Rare Find,3rd Row Seat,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Brake Assist,Heated Seats,Heated St...

    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: 1GKS2JKL3MR212672
    Stock: 29209B
    Certified Pre-Owned: No

  • Price Drop
    • 38,570 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 19 Hwy MPG
    • Sullivan Buick GMC Trucks (166 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Ocala, FL / 166 miles away from Port Saint Lucie, FL

    Tan 2023 GMC Yukon XL SLT 3.0L I6 10-Speed Automatic with Overdrive 4WD Fully Serviced and Detailed, 2 Presets For Power Driver Seat, Apple CarPlay/An...

    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 (15 City/19 Highway)

    Listing Information:

    VIN: 1GKS2GKT1PR479705
    Stock: 25M385G
    Certified Pre-Owned: No
    Listed since: 04-30-2025

    • 31,696 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 18 Hwy MPG
    • Delray Buick GMC (65 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Delray Beach, FL / 65 miles away from Port Saint Lucie, FL

    CARFAX One-Owner. Clean CARFAX. Priced below KBB Fair Purchase Price!4WD, 15 Diagonal Multi-Color Head-Up Display, 2 Presets For Outside Rearview Mirr...

    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/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL4PR358373
    Stock: P358373U
    Certified Pre-Owned: No
    Listed since: 03-18-2025

    • 186,982 miles
    • No accidents, 2 owners, rental vehicle
    • 8 Seats, 15 City / 21 Hwy MPG
    • Rodgers Enterprises (386 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Third-row seating
    • Power Driver Seat
    Close

    Located in North Charleston, SC / 386 miles away from Port Saint Lucie, FL

    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 (15 City/21 Highway)

    Listing Information:

    VIN: 1GKS1KE02DR326995
    Stock: 326995
    Certified Pre-Owned: No
    Listed since: 03-26-2025

  • Price Drop
    • 29,178 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 14 City / 18 Hwy MPG
    • Mullinax Ford of Central Florida (114 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Apopka, FL / 114 miles away from Port Saint Lucie, FL

    **FACTORY CERTIFIED WARRANTY**, **FREE DELIVERY WITHIN 200 MILES IN FLORIDA**, **NO DEALER FEES**, **4.6 STAR CUSTOMER RATED DEALERSHIP**, **20in 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:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKLXPR466416
    Stock: 466416
    Certified Pre-Owned: No
    Listed since: 05-27-2025

  • Price Drop
    $52,985
    fair price
    $575 above market
    • 52,967 miles
    • 1 accident, 2 owners, rental vehicle
    • 7 Seats, 14 City / 19 Hwy MPG
    • Tomlinson Motor Company (200 mi away)
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    • Upgraded Headlights
    Close

    Located in Gainesville, FL / 200 miles away from Port Saint Lucie, FL

    Yukon Denali With Leather Wireless Android Auto/Apple Carplay Birds Eye Backup Camera Power Memory Seats Heated And Cooled Seats Heated Steering Wheel...

    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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS1JKL9PR308488
    Stock: 13146
    Certified Pre-Owned: No
    Listed since: 01-25-2025

  • $43,300
    fair price
    $572 above market
    • 83,530 miles
    • 1 accident, 2 owners, rental vehicle
    • 8 Seats, 16 City / 20 Hwy MPG
    • Way Bros Buick Chevrolet GMC (389 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Hawkinsville, GA / 389 miles away from Port Saint Lucie, FL

    HEATED AND A/C SEATS - BENCH IN THE MIDDLE HURRY !!Visit Way Brothers Chevy Buick GMC online at www.waybroschevy.com to see more pictures of this ...

    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 (16 City/20 Highway)

    Listing Information:

    VIN: 1GKS1GKD4MR368010
    Stock: 368010
    Certified Pre-Owned: No
    Listed since: 09-14-2024

  • $50,990
    fair price
    $1,270 above market
    • 68,078 miles
    • 2 accidents, 4 owners, personal use
    • 7 Seats, 14 City / 19 Hwy MPG
    • Lorenzo Buick GMC (106 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Doral, FL / 106 miles away from Port Saint Lucie, FL

    4WD. White Frost Tricoat 2021 GMC Yukon XL Denali EcoTec3 6.2L V8 10-Speed Automatic with OverdrivePreferred Equipment Group 5SA (12-Way Power Seat Ad...

    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: 1GKS2JKL1MR288813
    Stock: PB4171A
    Certified Pre-Owned: No
    Listed since: 06-14-2025

  • Price Drop
    $50,899
    fair price
    $631 above market
    • 69,842 miles
    • 1 accident, 2 owners, corporate fleet vehicle
    • 7 Seats, 14 City / 20 Hwy MPG
    • Hennessy Buick GMC (490 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Morrow, GA / 490 miles away from Port Saint Lucie, FL

    Hennessy of Southlake is Proud to offer you this Exceptional 2021 GMC Yukon XL, Appointed with the Denali Trim and is finished in Satin Steel Metallic...

    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:

    16 Combined MPG (14 City/20 Highway)

    Listing Information:

    VIN: 1GKS1JKL0MR241016
    Stock: S2028PA
    Certified Pre-Owned: No
    Listed since: 03-13-2025

  • $50,999
    fair price
    $1,699 above market
    • 62,710 miles
    • 2 accidents, 1 owner, rental vehicle
    • 7 Seats, 14 City / 19 Hwy MPG
    • Amazing Luxury Cars Snellville (500 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Snellville, GA / 500 miles away from Port Saint Lucie, FL

    Vehicle Overview Options: DENALI PREMIUM PACKAGE - This 2021 GMC Yukon XL Denali is offered to you for sale by Amazing Luxury Cars. This GMC includes:...

    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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL3MR274525
    Stock: 274525
    Certified Pre-Owned: No
    Listed since: 03-20-2025

  • New Listing
    • 44,374 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 20 Hwy MPG
    • CarMax Ft. Myers (101 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Fort Myers, FL / 101 miles away from Port Saint Lucie, FL

    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:

    17 Combined MPG (15 City/20 Highway)

    Listing Information:

    VIN: 1GKS1GKD8PR247405
    Stock: 26916433
    Certified Pre-Owned: No

    • 59,336 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Tasca Buick GMC of Melbourne (55 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Melbourne, FL / 55 miles away from Port Saint Lucie, FL

    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: 1GKS2JKL0MR472463
    Stock: YC1770A
    Certified Pre-Owned: No
    Listed since: 06-06-2025

    • 46,039 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Dale Earnhardt JR. Buick GMC Cadillac (317 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Tallahassee, FL / 317 miles away from Port Saint Lucie, FL

    Hendrick Certified, CARFAX 1-Owner, ONLY 46,039 Miles! Denali trim. Heated Leather Seats, Nav System, Third Row Seat, Heated Rear Seat, Rear Air, Powe...

    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: 1GKS1JKL4MR485400
    Stock: XH85400
    Certified Pre-Owned: No
    Listed since: 06-05-2025

  • New Listing
    • 121,615 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats
    • C & J Auto Sales (139 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Tampa, FL / 139 miles away from Port Saint Lucie, FL

    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: 1GKS1GKT5MR467099
    Stock: 9218
    Certified Pre-Owned: No
    Listed since: 06-20-2025

    • 170,003 miles
    • No accidents, 2 owners, personal use
    • 8 Seats, 16 City / 20 Hwy MPG
    • Five Star Auto Sales of Tampa (135 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Tampa, FL / 135 miles away from Port Saint Lucie, FL

    2021 GMC YUKON SLT EXCELENT CONDITIONS IN AND OUT GREAT DEAL COPERING TO A MARKET OF OVER 40,000 FOR THE SAME VEHICLE !!!!Our prices have no hidden c...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/20 Highway)

    Listing Information:

    VIN: 1GKS1GKD2MR258492
    Stock: 258492
    Certified Pre-Owned: No
    Listed since: 05-22-2025

    • 62,376 miles
    • No accidents, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Dale Earnhardt JR. Buick GMC Cadillac (317 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tallahassee, FL / 317 miles away from Port Saint Lucie, FL

    CARFAX 1-Owner. DVD Entertainment System, Heated Leather Seats, Third Row Seat, Navigation, 4x4, Captains Chairs, Chrome Wheels, Trailer Hitch, REAR 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/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL3MR154014
    Stock: S86652A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • Price Drop
    • 61,013 miles
    • No accidents, 1 owner, rental vehicle
    • 7 Seats, 14 City / 18 Hwy MPG
    • Gary Yeomans Ford of Ocala (168 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Ocala, FL / 168 miles away from Port Saint Lucie, FL

    Certified.2023 GMC Yukon XL Denali 4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V8 Onyx Black4WD.THIS VEHICLE INCLUDES THE FOLLOWING FEATURES...

    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/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL2PR340826
    Stock: TM40826
    Certified Pre-Owned: No
    Listed since: 05-08-2025

    • 90,943 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Daniels Chevrolet (382 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Swainsboro, GA / 382 miles away from Port Saint Lucie, FL

    CLEAN CARFAX, ONE OWNER...RECENT TRADE IN...DENALI XL WITH ALL THE RIGHT OPTIONS...DENALI PREMIUM PKG...DUAL POWER SEATS...SECOND ROW BUCKETS...THIRD ...

    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: 1GKS1JKL7MR307349
    Stock: 141225A
    Certified Pre-Owned: No
    Listed since: 01-31-2025

    • 135,590 miles
    • 2 accidents, 3 owners, personal use only
    • 8 Seats, 14 City / 18 Hwy MPG
    • YERTON LEASING & AUTO SALES (106 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lakeland, FL / 106 miles away from Port Saint Lucie, FL

    This 2013 GMC YUKON XL 1500 DENALI 4D SPORT UTILITY 127,767 MILES V8, FLEX FUEL. 6.2 LITER, 2WD Features Leather, Navigation, Power Moon Roof, Dual Po...

    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/18 Highway)

    Listing Information:

    VIN: 1GKS1MEF1DR228928
    Stock: P2539
    Certified Pre-Owned: No
    Listed since: 06-07-2024

Showing 379 - 399 out of 688 listings

Consumer Reviews for the GMC Yukon XL

Read recent reviews for the GMC Yukon XL
Overall Consumer Rating
3.5 out of 5 stars27 Reviews
Write a vehicle reviewSee all 27 reviews
  • 5 star
    (44%)
  • 4 star
    (7%)
  • 3 star
    (19%)
  • 2 star
    (11%)
  • 1 star
    (19%)
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 2021 GMC Yukon XL in Port Saint Lucie, FL Values

Estimated values
2021 GMC Yukon XL AT4 4dr SUV 4WD (5.3L 8cyl 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$37,038$39,983$42,937
Clean$36,507$39,389$42,278
Average$35,621$38,400$41,180
Rough$34,471$37,114$39,752

The average list price of a used 2021 GMC Yukon XL in Port Saint Lucie, Florida is $48,737. The average mileage on a used GMC Yukon XL 2021 for sale in Port Saint Lucie, Florida is 80,142. Based on the average mileage of 80,142 for used 2021 GMC Yukon XL for sale in Port Saint Lucie, FL 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 2021 in Port Saint Lucie, Florida to be $35,621.

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