Used 2020 GMC Yukon XL for Sale nearMilwaukee, WI

Compare 2020 GMC Yukon XL Trims in Milwaukee, WI

The 2020 GMC Yukon XL offers a range of trims from budget-friendly options to luxury models, all with spacious interiors and strong performance.

• Starting at $23,220
• Best MPG/MPGe: 15 city / 22 hwy
• Most Popular: Denali 4WD

Trim Overview

Prices updated weekly from CarGurus listings.

Quick Compare Table

Listing prices sourced from CarGurus — updated weekly. OEM specs from manufacturer data.

Missing data displayed as "—".

Trim Deep Dives

SLE RWD — "Who It's For"

The SLE RWD is the pick for shoppers who want a spacious SUV with essential features without paying for luxury upgrades.

• Avg. market price: $26,248 (updated weekly)
• MPG/MPGe: 15 city / 22 hwy
• Inventory: 5 listings — lower availability; may limit negotiating room
• View SLE RWD listings

SLE 4WD — "Who It's For"

The SLE 4WD is ideal for families needing all-wheel drive without the higher price tag of luxury trims.

• Avg. market price: $26,248 (updated weekly)
• MPG/MPGe: 14 city / 21 hwy
• Inventory: 12 listings — lower availability; may limit negotiating room
• View SLE 4WD listings

SLT RWD — "Who It's For"

The SLT RWD is for buyers seeking a balance of luxury and practicality without going for the top-tier trims.

• Avg. market price: $26,248 (updated weekly)
• MPG/MPGe: 15 city / 22 hwy
• Inventory: 24 listings
• View SLT RWD listings

SLT 4WD — "Who It's For"

The SLT 4WD is perfect for those wanting sporty performance and all-wheel drive capabilities in a family-friendly SUV.

• Avg. market price: $29,276 (updated weekly)
• MPG/MPGe: 14 city / 21 hwy
• Inventory: 123 listings — widest selection in the lineup
• View SLT 4WD listings

Denali RWD — "Who It's For"

The Denali RWD is for shoppers who desire luxury features and a powerful engine without the added cost of 4WD.

• Avg. market price: $26,248 (updated weekly)
• MPG/MPGe: 14 city / 23 hwy
• Inventory: 30 listings
• View Denali RWD listings

Denali 4WD — "Who It's For"

The Denali 4WD is the choice for buyers wanting the ultimate luxury experience with off-road capability and a robust engine.

• Avg. market price: $23,220 (updated weekly)
• MPG/MPGe: 14 city / 20 hwy
• Inventory: 300 listings — widest selection in the lineup
• View Denali 4WD listings

Trim Recommendations

Most Popular — Denali 4WD

With 300 active listings, the Denali 4WD is the clear volume leader in the lineup.

Browse Denali 4WD listings

Best Budget Option — Denali 4WD

At $23,220 avg market price — below the lineup median of $26,248 — it's the most accessible entry point.

Browse Denali 4WD listings

Best for Fuel Economy — SLE RWD

The SLE RWD offers the best fuel efficiency in the lineup with 15/22 MPG.

Browse SLE RWD listings

These recommendations are based on CarGurus' proprietary market data from October 8, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 GMC Yukon XL cost?

Prices have softened 16.45% compared to this time last year, making it a favorable time to shop this model year.

There are 1,417 listings available, which suggests solid inventory for shoppers comparing prices and trims.

Is the 2020 GMC Yukon XL a good car?

Yes — the 5/5 user rating points to strong owner satisfaction for this model year. The 2020 GMC Yukon XL is built around space and capability, with a long-wheelbase layout that gives you more third-row room and more cargo space behind it than the regular Yukon. It also gives you a wide spread of trims, so you can shop for a more basic family hauler or move up to a more upscale Denali if you want more luxury and equipment. The tradeoff is that you are buying a large, truck-based SUV, so you should expect a higher cargo floor, a more truck-like driving feel, and weaker fuel economy than you would get from a crossover. With 36.3% of listings marked as good or great deals, there is still meaningful market opportunity if you shop carefully.

Is the 2020 GMC Yukon XL reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction. The 2020 GMC Yukon XL’s traditional chassis and truck-based design point to a vehicle built for durability and heavy-duty use, and its core appeal is straightforward: space, towing-and-hauling capability, and a premium trim ladder if you want more comfort. Because it is a large SUV with a more complex feature set on higher trims, long-term ownership risk is tied more to condition, maintenance history, and how hard the vehicle was used than to its basic mission. For used buyers, that means a well-documented service record matters a lot.

What should I look for when buying a used 2020 GMC Yukon XL?

At 68.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can confirm accident records, title status, and ownership history before you get too far into the process. After that, prioritize a thorough pre-purchase inspection, especially on the suspension, brakes, tires, and any power features that may have seen heavy family or towing use. Focus on overall condition and maintenance consistency, since a large SUV like this can hide expensive wear if it was used hard or poorly maintained.

Is now a good time to buy a used 2020 GMC Yukon XL?

This looks like a moderate market where selective buyers can still find value if they compare listings carefully.

• Deal availability: 36.3% of listings are priced as good or great deals.
• Inventory: There are 1,417 listings available.
• Price trend: Prices have softened 16.45% compared with last year.
• Clean inventory: 68.2% of listings are accident-free.

If you find a listing below $27,389, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 GMC Yukon XL's resale value?

The current average of $27,389 sits slightly below last year's $32,783.

That price drop can work in your favor if you are buying now, but it also means future resale will depend heavily on how well the vehicle is maintained and how desirable its configuration is when you decide to sell. A well-kept Yukon XL with strong equipment, clean history, and broad family appeal should remain easier to move than one with visible wear or a questionable record. Because the market has already adjusted downward, a careful purchase today can help protect you from taking on too much depreciation later.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2020 GMC Yukon XL or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 36.3% of listings are priced as good or great deals.
• At 68.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 16.45% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line:

If you want the traditional truck-based Yukon XL formula with strong space, capability, and a lower current price than last year, the 2020 is a sensible buy. If you are especially price-sensitive, you should still compare nearby years and individual listings closely, because the best value may come from whichever model year gives you the cleanest history and the strongest equipment for the money.

These recommendations are based on CarGurus' proprietary market data from October 13, 2026, CarGurus experts' opinions, and generative AI.