Used 2021 GMC Yukon XL for Sale nearPhiladelphia, PA

Compare 2021 GMC Yukon XL Trims in Philadelphia, PA

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 $32,995
• 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 full-size SUV with essential features without paying for luxury upgrades.

• Avg. market price: $37,794 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 6 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 capability without the higher price of luxury trims.

• Avg. market price: $34,999 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 13 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 well-rounded SUV with a balance of features and price.

• Avg. market price: $37,794 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 15 listings — lower availability; may limit negotiating room
• View SLT RWD listings

SLT 4WD — "Who It's For"

The SLT 4WD is the pick for shoppers who want luxury features and all-wheel drive without the highest price tag.

• Avg. market price: $32,995 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 101 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 a sporty SUV with off-road capabilities and luxury features.

• Avg. market price: $41,462 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 46 listings
• View AT4 4WD listings

Denali RWD — "Who It's For"

The Denali RWD is the pick for shoppers who want luxury features without the highest price in the lineup.

• Avg. market price: $37,794 (updated weekly)
• MPG/MPGe: 14 city / 20 hwy
• Inventory: 34 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 experience with off-road capability.

• Avg. market price: $39,180 (updated weekly)
• MPG/MPGe: 13 city / 19 hwy
• Inventory: 243 listings — widest selection in the lineup
• View Denali 4WD listings

Trim Recommendations

Most Popular — Denali 4WD

With 243 active listings, the Denali 4WD is the clear volume leader in the lineup.

Browse Denali 4WD listings

Best Budget Option — SLT 4WD

At $32,995 avg market price — below the lineup median of $37,794 — 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 at 15/20 MPG.

Browse SLE RWD listings

These recommendations are based on CarGurus' proprietary market data from October 22, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2021 GMC Yukon XL cost?

Prices have softened 14.19% compared to this time last year, making it a favorable time to shop this model year.

There are 1,527 listings available, which suggests you have a meaningful amount of inventory to compare.

Is the 2021 GMC Yukon XL a good car?

Yes — the 2021 GMC Yukon XL earns a 5/5 user rating, which points to strong owner satisfaction. Owners consistently praise its luxury feel, spacious interior, and comfort on long trips, and many also like how agile it feels despite its large size. For you, that makes it a strong fit if you want a full-size SUV with serious passenger and cargo space, especially if you value a more upscale experience. With 32.8% of listings marked as good or great deals, there is still some room to shop selectively.

Is the 2021 GMC Yukon XL reliable?

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

The owner feedback also emphasizes that it feels dependable and comfortable for long trips, with many drivers saying they can count on its spaciousness and upscale character. Some buyers do mention concerns about the brakes and prefer the diesel option over the gasoline engine choices, so you should pay close attention to maintenance history and how the vehicle has been used. For used buyers, the main long-term ownership risk is making sure a large, heavily used SUV has been cared for properly.

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

At 74.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and confirm whether any prior damage was repaired properly. A pre-purchase inspection should focus on braking performance, suspension condition, and signs of heavy family or towing use. Because this is a large, premium SUV, you will want to pay close attention to interior wear, electronics, and overall maintenance records.

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

This looks like a moderate, selective buyer's market, so you can shop carefully and still find worthwhile options.

• Deal availability: 32.8% of listings are priced as good or great deals.
• Inventory: There are 1,527 listings available.
• Price trend: Prices have softened 14.19% compared with last year.
• Clean inventory: 74.4% of listings are accident-free.

If you find a listing below $39,829, 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 $39,829 sits slightly below last year's $46,413.

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 key question is whether the SUV continues to hold demand as a spacious, upscale family hauler. Well-kept examples should remain attractive because buyers in this segment often prioritize condition, equipment, and comfort over age alone.

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:

• 32.8% of listings are priced as good or great deals.
• At 74.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 14.19% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: If you want the newer-generation Yukon XL with a more modern ride, more space, and strong owner approval, the 2021 is the better default choice. If your priority is stretching your budget as far as possible, a nearby older year may be worth considering, but you should expect to give up some of the 2021's updated feel and refinement.

How does the 2021 GMC Yukon XL compare to the 2021 Chevrolet Tahoe?

These recommendations are based on CarGurus' proprietary market data from October 21, 2026, CarGurus experts' opinions, and generative AI.