Used 2021 GMC Yukon XL for Sale nearChicago, IL

Compare 2021 GMC Yukon XL Trims in Chicago, IL

The 2021 GMC Yukon XL offers a range of trims from budget-friendly options to luxury models, catering to various needs and preferences.

• Starting at $40,147
• Best MPG/MPGe: 15 city / 20 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 well-equipped SUV without the added cost of 4WD. It's a great entry point into the Yukon XL lineup.

• Avg. market price: $42,078 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 7 listings — lower availability; may limit negotiating room
• View SLE RWD listings

SLE 4WD — "Who It's For"

The SLE 4WD is the pick for shoppers who want all-wheel drive without paying for higher trims. It balances features and capability well.

• Avg. market price: $42,078 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 17 listings — lower availability; may limit negotiating room
• View SLE 4WD listings

SLT RWD — "Who It's For"

The SLT RWD is the pick for shoppers who want a standard SUV experience with added luxury features. It offers a solid mix of comfort and capability.

• Avg. market price: $42,078 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 32 listings
• View SLT RWD listings

SLT 4WD — "Who It's For"

The SLT 4WD is the pick for shoppers who want luxury features combined with all-wheel drive. It provides a wide selection and great comfort.

• Avg. market price: $40,147 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 140 listings — widest selection in the lineup
• View SLT 4WD listings

AT4 4WD — "Who It's For"

The AT4 4WD is the pick for shoppers who want off-road capability with luxury features. It’s perfect for adventurous families.

• Avg. market price: $42,078 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 40 listings
• View AT4 4WD listings

Denali RWD — "Who It's For"

The Denali RWD is the pick for shoppers who want a luxury SUV experience without 4WD. It offers premium features and comfort.

• Avg. market price: $42,078 (updated weekly)
• MPG/MPGe: 14 city / 20 hwy
• Inventory: 33 listings
• View Denali RWD listings

Denali 4WD — "Who It's For"

The Denali 4WD is the pick for shoppers who want the ultimate luxury SUV with off-road capability. It’s the most popular trim for a reason.

• Avg. market price: $42,430 (updated weekly)
• MPG/MPGe: 13 city / 19 hwy
• Inventory: 297 listings — widest selection in the lineup
• View Denali 4WD listings

Trim Recommendations

Most Popular — Denali 4WD

With 297 active listings, the Denali 4WD is the clear volume leader in the lineup.

Browse Denali 4WD listings

Best Budget Option — SLT 4WD

At $40,147 avg market price — below the lineup median of $42,078 — it's the most accessible entry point.

Browse SLT 4WD listings

Best for Fuel Economy — SLE RWD

The SLE RWD offers the best fuel economy in the lineup with 15/20 MPG.

Browse SLE RWD listings

These recommendations are based on CarGurus' proprietary market data from September 12, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2021 GMC Yukon XL cost?

Prices have softened 13.41% compared to this time last year, making it a favorable time to shop this model year.

There are 1,479 listings available, which gives you a solid pool of options to compare.

Is the 2021 GMC Yukon XL a good car?

Yes — the 5/5 user rating points to very strong owner satisfaction. Owners consistently praise the luxury feel, spacious interior, comfort for long trips, and powerful engine performance. That lines up well if you want a full-size SUV that prioritizes passenger room and a more comfortable driving experience. With 32.5% of listings marked as good or great deals, you also have a decent chance of finding a competitively priced example.

Is the 2021 GMC Yukon XL reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The owner feedback also points to a dependable, trouble-free ownership experience for many shoppers, with praise centered on comfort and confidence over long trips. That said, used buyers should still focus on maintenance history and overall condition, since long-term ownership risk is always tied to how the vehicle was cared for before you buy.

What should I look for when buying a used 2021 GMC Yukon XL?

Accident-free inventory is solid at 76.3% — always verify the vehicle history report.

You should prioritize a history report first, then inspect the vehicle closely for signs of prior damage, uneven wear, or deferred maintenance. Because this is a large SUV, pay special attention to brakes, suspension feel, and how the cabin and cargo areas have held up. A careful test drive and a pre-purchase inspection can help you separate a clean, well-kept example from one that has been used hard.

Is now a good time to buy a used 2021 GMC Yukon XL?

This is a moderate market, so you can be selective without expecting a deep bargain on every listing.

• Deal availability: 32.5% of listings are priced as good or great deals.
• Inventory: There are 1,479 listings available.
• Price trend: Prices have softened 13.41% compared with last year.
• Clean inventory: 76.3% of listings are accident-free.

If you find a listing below $40,844, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 GMC Yukon XL's resale value?

The current average of $40,844 sits slightly below last year's $47,168.

That price movement suggests the market has already adjusted downward, which can help you buy at a more favorable point if you plan to keep the vehicle for several years. For a future seller, the current softness means resale value will depend heavily on condition, mileage, and how well the vehicle is documented. Well-kept examples should still draw interest because shoppers in this segment tend to value space, comfort, and capability.

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 2021 GMC Yukon XL or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 32.5% of listings are priced as good or great deals.
• Accident-free inventory is solid at 76.3% — always verify the vehicle history report.
• Price trend: Prices have softened 13.41% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: The 2021 is the better pick if you want the more modern ride and room benefits that came with this model year, especially if you value comfort, space, and strong owner approval. If you are more price-sensitive, you can also compare nearby years to see whether a lower entry price outweighs the 2021’s updated feel and strong market support.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.