How much does the 2021 GMC Yukon cost?

Prices have softened 13.91% compared to this time last year, making it a favorable time to shop this model year.

With 2,242 listings available, you have a meaningful amount of inventory to compare across trims and conditions.

If you find a listing below $42,853.05, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2021 GMC Yukon a good car?

Yes — the 2021 GMC Yukon earns a 5/5 user rating and a 7.67/10 expert rating. The model scores 9/10 across Look and feel, Technology, and Safety.

Owners consistently praise the luxurious feel, spacious interior, and impressive tech features. The ride is described as extremely comfortable, and the Yukon stands out to many shoppers who want a large SUV that feels more refined than expected. The main trade-offs are the poor fuel economy and the interior materials that can feel cheap, while the expert review also points to uncomfortable seats and weaker value.

That mix makes the Yukon a strong fit if you want a full-size SUV with a premium vibe, lots of room, and a capable feel. It is less compelling if your priorities are efficiency or maximum value.

With 33.8% of listings marked as good or great deals, there is still room to shop selectively.

Is the 2021 GMC Yukon reliable?

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

The owner feedback points to a vehicle that feels luxurious, spacious, and impressive in everyday use, which usually lines up with confidence over time. The expert review also describes the Yukon as more refined and capable, with improved ride quality and handling thanks to the redesign. On the maintenance side, the tech and ownership experience are supported by over-the-air updates and connected services, which can help keep the vehicle current.

For used buyers, the main long-term risk is that a large, complex SUV can become expensive to live with if prior maintenance was inconsistent.

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

Accident-free inventory is solid at 78.3% — always verify the vehicle history report.

You should still check the history report carefully, because a clean listing percentage does not replace a proper records review. Prioritize a pre-purchase inspection that focuses on wear items, interior condition, and how the vehicle drives over rough pavement. Given the Yukon’s size and premium positioning, pay close attention to seat comfort, cabin materials, and whether the features you want are actually present on the specific trim.

Key things to evaluate:

• Trim level: The SLE, SLT, AT4, and Denali trims are positioned differently, with the base setup missing the added driver-assistance features that start on SLT. The Denali stands apart with its more upscale cabin design and premium interior touches.
• Powertrain: A 355-horsepower 5.3-liter V8 is standard on all but Denali, while Denali gets a 420-horsepower 6.2-liter V8. A 3.0-liter turbo-diesel inline six-cylinder is also mentioned as an option for most versions, and the review notes that fuel economy can worsen rather than improve in some cases.
• Safety package: Standard equipment includes forward collision warning, daytime pedestrian detection, automatic emergency braking below 50 mph, automatic high-beam headlights, Teen Driver, a rear-seat reminder, and automatic crash response and crisis assistance through OnStar. Starting with SLT, you also get blind-spot warning, rear cross-traffic warning, lane-departure warning, and lane-keeping assistance. Adaptive cruise control and enhanced automatic emergency braking are reserved for Denali.
• Infotainment: Every 2021 Yukon gets a 10.2-inch touchscreen with wireless Apple CarPlay, wireless Android Auto, Amazon Alexa integration, over-the-air updates, and access to connected services. Available upgrades include wireless device charging, navigation, a 14-speaker Bose audio system, and rear-seat entertainment with dual 12.6-inch displays.
• Fuel efficiency: The 6.2-liter V8 with 4WD is EPA-rated at 14 mpg city, 19 highway, and 16 combined. In testing, it returned 14.4 mpg on one loop and 16.2 mpg on a shorter second loop.

Which 2021 GMC Yukon trim should I buy?

The 2021 GMC Yukon is offered in 4 trim levels: SLE, SLT, AT4, and Denali.

Here's the short version:

• Base trim: The SLE gives you the core Yukon experience, but it lacks the added driver-assistance features that begin on SLT.
• Sweet-spot trim: The SLT is the best value pick if you want the important safety upgrades without jumping all the way to Denali pricing.
• Premium/top trim: The Denali is the most upscale choice, with the exclusive 6.2-liter V8, a more sophisticated cabin, and the richest tech and comfort content.
• Off-road trim: The AT4 is the one to choose if you want the Yukon’s off-road-oriented hardware and styling.

The safety package starts with basic driver assistance on lower trims and expands meaningfully as you move up, so trim choice matters here.

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

This is a moderate market for selective buyers, so you can shop carefully and still find value.

• Deal availability: 33.8% of listings are priced as good or great deals.
• Inventory: There are 2,242 listings available.
• Price trend: Prices have softened 13.91% compared with last year.
• Clean inventory: 78.3% of listings are accident-free.

If you find a listing below $42,853.05, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 GMC Yukon's resale value?

The current average of $42,841 sits slightly below last year's $49,761.

That price movement suggests the market has already adjusted downward, which can help you buy more confidently now. For a future seller, it also means your resale outcome will depend heavily on condition, mileage, and trim desirability rather than broad market appreciation. Well-kept examples with the right equipment should hold up better than neglected ones, especially in a segment where buyers care about 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.

Is the 2021 GMC Yukon safe?

It earns a 9/10 safety score from our experts.

Standard safety equipment includes forward collision warning, daytime pedestrian detection, automatic emergency braking below 50 mph, automatic high-beam headlights, Teen Driver, a rear-seat reminder, and automatic crash response and crisis assistance through OnStar. Starting with SLT, you also get blind-spot warning, rear cross-traffic warning, lane-departure warning, and lane-keeping assistance. Rear pedestrian alert is available on SLT and AT4 and standard on Denali, while adaptive cruise control and enhanced automatic emergency braking are reserved for Denali.

The safety tech is broad and well integrated, but the review notes that crash-test ratings were unavailable at the time.

Should I buy a 2021 GMC Yukon 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:

• 33.8% of listings are priced as good or great deals.
• Accident-free inventory is solid at 78.3% — always verify the vehicle history report.
• Price trend: Prices have softened 13.91% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The redesign brings more space, better ride quality, and a major technology upgrade.

Consider the 2022 if:

• At $47,961, the 2022 costs more than the current year's $42,841 average.
• It adds a standard 12-inch driver information center and enhanced connectivity.

The 2021 is the better buy if you want the redesigned Yukon at a lower price and can live without the next year's added display and connectivity upgrades. If you are willing to pay more for those updates, the 2022 is the cleaner choice for shoppers who want the newest version.

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