Used 2021 Cadillac XT6 for Sale near Texas

How much does the 2021 Cadillac XT6 cost?

Prices have softened 14.26% compared to this time last year, making it a favorable time to shop this model year.

There are 925 listings available, which gives you a meaningful pool to compare trims, mileage, and equipment. If you find a listing below $26,617.09, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2021 Cadillac XT6 a good car?

The 2021 Cadillac XT6 is a solid choice if you want a three-row luxury SUV that emphasizes refinement, space, and everyday usability over outright excitement. It earns 3.67/5 from users and 7.5/10 from experts.

The model scores 8/10 across Look and feel, Form and function, Technology, and Safety.

Its appeal is strongest if you want a crossover-style alternative to the larger Escalade with a more manageable footprint and a family-friendly layout. The XT6’s standout strengths are its spacious third row, impressive technology, and great handling, which make it easy to live with and pleasant to drive.

The trade-offs are worth weighing: advanced safety features are not standard, the stereo is lacking, and performance is fairly pedestrian. That means you should shop it as a comfort- and utility-first luxury SUV rather than a performance pick.

Good and great deals percentage: 33.4%

Is the 2021 Cadillac XT6 reliable?

The 2021 XT6 is presented as a refined, confidence-inspiring three-row SUV, but it also carries some of the same issues noted in the evaluation. The expert notes point to a vehicle that is broadly competent, yet not especially exciting or free of compromises.

From a dependability standpoint, the performance notes describe the V6 and nine-speed automatic as smooth and easygoing, with the transmission not struggling to find a gear. The cost-effectiveness notes also point out that General Motors tends to bundle equipment into packages, which can push the price up quickly if you want more features.

If you plan to keep one long term, the main ownership risk is that the XT6’s appeal depends heavily on condition and equipment level, so a poorly maintained or lightly equipped example may feel less satisfying over time.

What should I look for when buying a used 2021 Cadillac XT6?

At 71.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a pre-purchase inspection, especially if the listing includes higher-value option packages. Pay close attention to how the safety and driver-assistance systems function, since some features are not standard on every trim. It also makes sense to evaluate cabin condition carefully, because the XT6’s value depends heavily on whether it feels genuinely premium inside.

Key things to evaluate:

• Trim level: The Luxury trim is the entry point, while Premium Luxury and Sport add more upscale equipment and a more complete safety set. The base trim is the one most likely to leave you wanting more standard safety content.
• Powertrain: The base model uses a 2.0-liter turbo-four, while Premium Luxury and Sport use a 3.6-liter V6 with a nine-speed automatic. The V6 is described as smooth and strong enough for easy acceleration, while the turbo-four is the efficiency-oriented choice.
• Safety package: All models include automatic emergency braking, forward-collision alert, following-distance indicator, lane-keep assist with lane-departure warning, a high-definition rearview camera, Safety Alert Seat, IntelliBeam headlights, and rear park assist. Premium Luxury and Sport also add lane change alert with blind-spot monitoring and rear cross-traffic alert as standard.
• Infotainment: The XT6 uses an 8.0-inch touchscreen and includes wireless Apple CarPlay and Android Auto, infotainment user profiles, a WiFi hot spot, six USB ports, and an eight-speaker Bose audio system. The screen is described as smaller than rivals’ and can feel crowded.
• Fuel efficiency: The turbo-four is rated at 21 mpg city, 26 mpg highway, and 23 mpg combined with AWD, or 21 mpg city, 27 mpg highway, and 23 mpg combined with FWD. The V6 returns 19 mpg city, 26 mpg highway, and 21 mpg combined with FWD, and AWD lowers the city and highway figures by one each while keeping the combined rating at 21 mpg.

Which 2021 Cadillac XT6 trim should I buy?

The 2021 Cadillac XT6 is offered in 3 trim levels: Luxury, Premium Luxury, and Sport.

Here's the short version:

• Luxury: This is the value-oriented starting point if you want the XT6’s space, refinement, and standard tech without paying for the higher trims. It makes the most sense if you care more about the XT6’s core family-hauling mission than extra luxury or safety content.
• Premium Luxury: This is the best-value trim for most shoppers because it adds the stronger V6 and more standard safety equipment while staying below the Sport’s price. If you want the most balanced mix of comfort, equipment, and everyday usability, this is the trim to target.
• Sport: This is the right pick if you want the V6 plus the more aggressive appearance treatment and standard AWD. It suits you best if style and a more distinctive look matter more than keeping the purchase price in check.

Premium Luxury and Sport also bring lane change alert with blind-spot monitoring and rear cross-traffic alert as standard, which is a meaningful safety-package upgrade over the base trim.

Is now a good time to buy a used 2021 Cadillac XT6?

This is a moderate buyer’s market, so you have room to be selective without expecting every listing to be a bargain.

• Deal availability: 33.4% of listings are priced as good or great deals.
• Inventory: There are 925 listings available.
• Price trend: Prices have softened 14.26% compared with last year.
• Clean inventory: 71.5% of listings are accident-free.

If you find a listing below $26,617.09, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Cadillac XT6's resale value?

The current average of $26,610 sits slightly below last year's $31,034.

That drop suggests the XT6 has already absorbed a meaningful amount of depreciation, which can help you as a buyer today. If you sell later, though, you should expect resale value to depend heavily on trim, mileage, and condition because the market has already moved down from last year’s level.

The good news is that the current pricing gives you a lower entry point than before. The caution is that a future seller may not recover much of the original premium if the vehicle is lightly equipped or shows wear.

Is the 2021 Cadillac XT6 safe?

The 2021 XT6 earns a five-star frontal crash test rating and a four-star rollover crash test rating from NHTSA.

It earns a 8/10 safety score from our experts.

All XT6 models come with automatic emergency braking, forward-collision alert, following-distance indicator, lane-keep assist with lane-departure warning, a high-definition rearview camera, Safety Alert Seat, IntelliBeam headlights, and rear park assist. Premium Luxury and Sport add lane change alert with blind-spot monitoring and rear cross-traffic alert as standard.

One important caveat is that the lane-keep assist and lane-departure warning systems are described as weak in practice, so you should test those features carefully during a drive.

Should I buy a 2021 Cadillac XT6 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:

• 33.4% of listings are priced as good or great deals.
• At 71.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 14.26% compared with last year.
• It offers a refined three-row layout with strong tech and confident handling.

Consider the 2020 if:

• At $24,737, the 2020 costs less than the current year's $26,610 average.
• It offers stylish, approachable three-row luxury with easy-to-use technology.

Consider the 2022 if:

• At $29,909, the 2022 costs more than the current year's $26,610 average.
• It adds a more polished balance of comfort, equipment, and family-friendly safety.

The bottom line: If you want the best mix of price, refinement, and everyday usability, the 2021 is the primary year to target. If you are especially price-sensitive, the 2020 is the smarter value play, while the 2022 makes sense if you want to spend more for a newer-feeling package.

These recommendations are based on CarGurus' proprietary market data from September 4, 2026, CarGurus experts' opinions, and generative AI.