Used 2020 GMC Yukon XL for SaleNationwide

Filters (3)

Location:

Include delivery listings?

1,335 vehicles found

Shop with transparent pricing.

Only show listings that include dealer fees
Year:
2021
Make:
GMC
Model:
Yukon XL
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
4X2
Engine:
420 hp 6.2L V8
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Mileage:
129,345
Stock #:
MP5376A
VIN:
1GKS1JKL0MR281564
Onyx Black 2021 GMC Yukon XL SUV / Crossover 4X2
New arrival

 

2021 GMC Yukon XL

Denali RWD

129,345 mi

Mt Pleasant, SC
Good Deal

$36,135

Year:
2021
Make:
GMC
Model:
Yukon XL
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
Gray (Steel Metallic)
Fuel type:
Gasoline
Interior color:
Jet Black
Mileage:
129,894
Stock #:
B26012A
VIN:
1GKS1GKD3MR258565
Gray (Steel Metallic) 2021 GMC Yukon XL SUV / Crossover 4X2
Price drop

-$956

 

2021 GMC Yukon XL

SLT RWD

129,894 mi

Milton, FL
Great Deal

$29,239

$28,283

Year:
2021
Make:
GMC
Model:
Yukon XL
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
ONYX BLACK
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Mileage:
112,647
Stock #:
GT1609A
VIN:
1GKS2HKD2MR371460
ONYX BLACK 2021 GMC Yukon XL SUV / Crossover Four-Wheel Drive
New arrival

 

2021 GMC Yukon XL

AT4 4WD

112,647 mi

Norman, OK
Good Deal

$38,697

CarGurus Analysis:

2020 GMC Yukon XL

5.0

  • With 1,340 currently listed for sale and an average price of $28,605.00, 33.1% of 2020 GMC Yukons XLs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2020 GMC Yukon XL 5 / 5 stars.

  • 69.3% of 2020 Yukon XL models on CarGurus are accident free.

Research summarized using AI

Year:
2021
Make:
GMC
Model:
Yukon XL
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
White Frost
Fuel type:
Gasoline
Interior color:
Jet Black
Mileage:
56,796
Stock #:
C260929A
VIN:
1GKS2JKL5MR251831
White Frost 2021 GMC Yukon XL SUV / Crossover Four-Wheel Drive
New arrival

 

2021 GMC Yukon XL

Denali 4WD

56,796 mi

Austin, TX
Good Deal

$48,125

CarGurus Analysis: 2020 GMC Yukon XL

Image Not Available

Summary

  • With 1,340 currently listed for sale and an average price of $28,605.00, 33.1% of 2020 GMC Yukons XLs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2020 GMC Yukon XL 5 / 5 stars.

  • 69.3% of 2020 Yukon XL models on CarGurus are accident free.

Why it stands out

The 2020 GMC Yukon XL stands out as a full-size SUV built around space, utility, and traditional truck-based toughness. It rides on a solid rear axle and uses a higher cargo-area floor than car-based crossovers, which reflects its old-school layout and helps explain why it appeals to buyers who need serious passenger and cargo capacity rather than crossover-like packaging. The Yukon XL’s long-wheelbase design also gives it more room inside than the regular Yukon, especially for third-row passengers and luggage behind them.

For 2020, the Yukon XL SLE came standard with a 5.3L V8 engine, eight-passenger seating, an eight-inch infotainment screen, three-zone climate control, a Bose audio system, and OnStar technology. A nine-passenger seating configuration was available, and the optional Driver Alert Package added forward collision alert with automatic emergency braking, lane-departure warning, lane keep assist, lane-change alert, and a vibrating safety alert seat. The SLT brought more comfort and convenience, including a hands-free power liftgate, power adjustable pedals, a locking rear differential, a heated steering wheel, heated and ventilated front seats, heated second-row seats with power-folding functionality, and leather seating surfaces.

The Denali is the most upscale version in this generation and gives the Yukon XL a more premium personality. It came standard with the larger 6.2L V8 engine, magnetic ride control suspension, 20-inch aluminum wheels, an upgraded Bose audio system, and a chrome grille, while the Denali Touring Package added a sunroof, a head-up display, navigation, and a rear-seat entertainment system. That combination makes the 2020 Yukon XL especially appealing to shoppers who want a large SUV that can do family duty, tow and haul, and still offer a genuinely luxurious cabin. Its main drawbacks are the ones that come with the territory: poor fuel economy, handling that trails car-based crossovers, and older technology compared with newer designs.

Other model years to consider

  • 2023 GMC Yukon XL

    • Average price: $56,897.00
    • Good/great deal percentage: 34.6%
    • User rating: 5 / 5
    • Total listings: 2,345
  • 2022 GMC Yukon XL

    • Average price: $46,840.00
    • Good/great deal percentage: 34.3%
    • User rating: 4.8 / 5
    • Total listings: 2,290
  • 2024 GMC Yukon XL

    • Average price: $63,886.00
    • Good/great deal percentage: 34.1%
    • Total listings: 2,264

This analysis is based on CarGurus' proprietary market data from August 31, 2026, CarGurus experts' opinions, and generative AI.

*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.

Relevant articles

A better way to discover your best deal

Let us help you find a car you’ll love.