Used 2018 GMC Yukon XL for Sale near Arizona

Compare 2018 GMC Yukon XL Trims

The 2018 GMC Yukon XL offers a range of trims from budget-friendly options to luxury models, catering to various needs and preferences.

• Starting at $15,955
• Best MPG/MPGe: 16 city / 23 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 budget-friendly SUV without sacrificing essential features.

• Avg. market price: $15,955 (updated weekly)
• MPG/MPGe: 16 city / 23 hwy
• Inventory: 72 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 a hefty price tag.

• Avg. market price: $19,362 (updated weekly)
• MPG/MPGe: 15 city / 22 hwy
• Inventory: 171 listings — lower availability; may limit negotiating room
• View SLE 4WD listings

SLT Standard Edition RWD — "Who It's For"

The SLT Standard Edition RWD is the pick for shoppers who want a touch of luxury without going all out.

• Avg. market price: $23,129 (updated weekly)
• MPG/MPGe: 16 city / 23 hwy
• Inventory: 13 listings — lower availability; may limit negotiating room
• View SLT Standard Edition RWD listings

SLT RWD — "Who It's For"

The SLT RWD is the pick for shoppers who want a well-rounded SUV with added comfort features.

• Avg. market price: $18,155 (updated weekly)
• MPG/MPGe: 16 city / 23 hwy
• Inventory: 427 listings
• View SLT RWD listings

SLT Standard Edition 4WD — "Who It's For"

The SLT Standard Edition 4WD is the pick for shoppers who want luxury features with all-wheel drive capability.

• Avg. market price: $19,150 (updated weekly)
• MPG/MPGe: 15 city / 22 hwy
• Inventory: 13 listings — lower availability; may limit negotiating room
• View SLT Standard Edition 4WD listings

SLT 4WD — "Who It's For"

The SLT 4WD is the pick for shoppers who want sporty features combined with all-wheel drive.

• Avg. market price: $20,541 (updated weekly)
• MPG/MPGe: 15 city / 22 hwy
• Inventory: 1,240 listings — widest selection in the lineup
• View SLT 4WD listings

Denali RWD — "Who It's For"

The Denali RWD is the pick for shoppers who want luxury features without the 4WD price premium.

• Avg. market price: $20,936 (updated weekly)
• MPG/MPGe: 14 city / 23 hwy
• Inventory: 470 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: $23,634 (updated weekly)
• MPG/MPGe: 14 city / 21 hwy
• Inventory: 2,837 listings — widest selection in the lineup
• View Denali 4WD listings

Trim Recommendations

Most Popular — Denali 4WD

With 2,837 active listings, the Denali 4WD is the clear volume leader in the lineup.

Browse Denali 4WD listings

Best Budget Option — SLE RWD

At $15,955 avg market price — below the lineup median of $19,951 — it's the most accessible entry point.

Browse SLE RWD listings

Best for Fuel Economy — SLE RWD

The SLE RWD offers the best fuel economy in the lineup at 16/23 MPG/MPGe.

Browse SLE RWD listings

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

How much does the 2018 GMC Yukon XL cost?

Prices have softened 11.22% compared to this time last year, making it a favorable time to shop this model year.

There are 1,064 listings available, which gives you a solid amount of inventory to compare.

Is the 2018 GMC Yukon XL a good car?

Yes — the 2018 GMC Yukon XL earns a 5/5 user rating, which points to very strong owner satisfaction. Owners consistently praise its spaciousness and luxurious feel, and they also like how well it works for family travel and daily use. If you want a large SUV that prioritizes room for passengers and cargo, this model year fits that use case well. With 34.2% of listings marked as good or great deals, you have a meaningful chance to find a competitive offer.

Is the 2018 GMC Yukon XL reliable?

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

Owner feedback highlights a dependable, trouble-free ownership experience centered on comfort and space, with the main complaints being relatively minor issues like dings, dents, and a malfunctioning screen. For used buyers, that means the bigger long-term risk is less about the core ownership experience and more about finding a well-kept example with clean condition and working electronics.

What should I look for when buying a used 2018 GMC Yukon XL?

At 58.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can separate clean examples from those with prior damage. After that, prioritize a thorough pre-purchase inspection, especially for body condition, panel alignment, and interior electronics. Because owners mentioned minor issues like dings, dents, and a malfunctioning screen, you should pay close attention to cosmetic condition and infotainment operation before you commit.

Is now a good time to buy a used 2018 GMC Yukon XL?

This looks like a moderate, selective buyer's market, so you can shop patiently but should move quickly on the best examples.

• Deal availability: 34.2% of listings are priced as good or great deals.
• Inventory: There are 1,064 listings available.
• Price trend: Prices have softened 11.22% compared with last year.
• Clean inventory: 58.3% of listings are accident-free.

If you find a listing below $21,700, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 GMC Yukon XL's resale value?

The current average of $21,700 sits slightly below last year's $24,443.

That price movement suggests the market has cooled, which can make future resale a little more sensitive to mileage, condition, and equipment. If you buy well and keep the vehicle in strong shape, you may be better positioned when it comes time to sell. Large SUVs with broad family appeal can still hold buyer interest, but the current trend means you should expect value to depend heavily on how clean and well maintained your example is.

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 2018 GMC Yukon XL or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 34.2% of listings are priced as good or great deals.
• At 58.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 11.22% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: The 2018 is a strong choice if you want a spacious, well-liked full-size SUV and you can verify condition carefully. If your priority is stretching your budget, a nearby year with similar space and a lower asking price may be worth considering, but the 2018 remains the better pick if you want the strongest mix of owner satisfaction and current market value.

How does the 2018 GMC Yukon XL compare to the 2018 Chevrolet Tahoe?

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.