Used 2021 GMC Yukon XL for Sale nearMontgomery, AL

Compare 2021 GMC Yukon XL Trims in Montgomery, AL

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 $33,000
• 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 luxury price tag. It's a great entry point into the Yukon XL lineup.

• Avg. market price: $34,322 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 8 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 paying for higher trims. It's ideal for those needing versatility in various conditions.

• Avg. market price: $34,322 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 8 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 blend of luxury and practicality without the higher price of AWD options. It offers a solid set of features.

• Avg. market price: $33,000 (updated weekly)
• MPG/MPGe: 15 city / 20 hwy
• Inventory: 61 listings
• View SLT RWD listings

SLT 4WD — "Who It's For"

The SLT 4WD is the pick for shoppers who want luxury features with the added benefit of all-wheel drive. It's a versatile choice for families.

• Avg. market price: $34,322 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 77 listings
• View SLT 4WD listings

AT4 4WD — "Who It's For"

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

• Avg. market price: $34,322 (updated weekly)
• MPG/MPGe: 15 city / 19 hwy
• Inventory: 56 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 the added complexity of AWD. It offers premium features and comfort.

• Avg. market price: $34,322 (updated weekly)
• MPG/MPGe: 14 city / 20 hwy
• Inventory: 67 listings
• View Denali RWD listings

Denali 4WD — "Who It's For"

The Denali 4WD is the pick for shoppers who want the ultimate luxury and capability in an SUV. It's the most popular trim for good reason.

• Avg. market price: $35,644 (updated weekly)
• MPG/MPGe: 13 city / 19 hwy
• Inventory: 235 listings — widest selection in the lineup
• View Denali 4WD listings

Trim Recommendations

Most Popular — Denali 4WD

With 235 active listings, the Denali 4WD is the clear volume leader in the lineup.

Browse Denali 4WD listings

Best Budget Option — SLT RWD

At $33,000 avg market price — below the lineup median of $34,322 — it's the most accessible entry point.

Browse SLT RWD listings

Best for Fuel Economy — SLE RWD

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

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 14.54% compared to this time last year, making it a favorable time to shop this model year.

There are 1,551 listings available, which gives you a solid pool of options 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 for such a large SUV. The overview also highlights its appeal as a roomy, upscale three-row SUV with genuine passenger and cargo utility. With 36.2% of listings marked as good or great deals, you have a meaningful number of attractive listings to consider.

Is the 2021 GMC Yukon XL reliable?

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

The owner feedback emphasizes that you can count on its comfort, spaciousness, and upscale feel, and it also points to a generally dependable ownership experience for buyers who want a large SUV for long trips and family use. The main caution for used buyers is that long-term ownership risk will depend heavily on maintenance history and how well the vehicle has been cared for.

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

At 73.8% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should run a vehicle history report on every candidate and pay close attention to any prior collision records, title issues, or repeated repairs. A pre-purchase inspection should focus on body condition, alignment, braking performance, and signs of wear that could matter more on a large SUV. Because this model is often bought for family duty and long trips, you’ll want to prioritize overall condition and maintenance consistency over cosmetic extras.

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 listings.

• Deal availability: 36.2% of listings are priced as good or great deals.
• Inventory: There are 1,551 listings available.
• Price trend: Prices have softened 14.54% compared with last year.
• Clean inventory: 73.8% of listings are accident-free.

If you find a listing below $39,649, 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 $39,649 sits slightly below last year's $46,396.

That price movement suggests the market has cooled, which can help you buy more affordably now but may also mean future resale gains are more limited if prices stay soft. For a future seller, the key advantage is that this model still has broad appeal thanks to its size and comfort, which can help support demand when it’s time to list. 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:

• 36.2% of listings are priced as good or great deals.
• At 73.8% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 14.54% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: You should lean toward the 2021 if you want the newer-generation Yukon XL experience with strong owner satisfaction and a softer used-market price than last year. If your main goal is to minimize upfront cost, a nearby older year may be worth considering, but the 2021 is the better fit if you want the more modern package and can be selective about condition.

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

These recommendations are based on CarGurus' proprietary market data from October 27, 2026, CarGurus experts' opinions, and generative AI.