How much does the 2018 GMC Acadia cost?

Prices have softened 11.12% compared to this time last year, making it a favorable time to shop this model year.

There are 2,697 listings available, which suggests you have room to compare options across the market.

If you find a listing below $15,809, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2018 GMC Acadia a good car?

Yes — the 4.79/5 user rating points to strong owner satisfaction, and the expert rating is 7.17/10. The model scores 8/10 across Form and function and Safety.

Owners consistently praise the spacious, comfortable interior, the family-friendly layout, and the safe driving experience. The overview also points to a useful third row and a blend of comfort and functionality, which fits well if you want a midsize SUV for family duty. With 30.7% of listings marked as good or great deals, you also have a decent chance of finding a value-oriented example.

Is the 2018 GMC Acadia reliable?

Owners rate it 4.79/5, a strong signal of long-term satisfaction.

The owner feedback also leans toward dependable day-to-day use, with repeated praise for the roomy cabin and comfortable, trouble-free family driving experience. The expert notes reinforce that the Acadia’s V6 is a strong, eager engine, and the model’s safety and driver-assistance equipment adds to confidence over time. The main long-term ownership risk for used buyers is making sure you choose a well-maintained example, since the transmission behavior and trim-dependent equipment can affect how satisfying it feels after purchase.

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

At 62.7% 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 you’re considering a higher-mileage or heavily optioned example. Pay close attention to body condition, evidence of prior repairs, and how the transmission behaves in normal driving. Because this is a family SUV, you should also check that the seating, cargo area, and convenience features match how you plan to use it.

Key things to evaluate:

• Trim level: The base SL gives you a 7-inch touchscreen, keyless ignition and entry, tri-zone climate control, Android Auto, Apple CarPlay, and a 4G LTE Wi-Fi hotspot, but it does not offer engine or drivetrain choice. Moving up to SLE adds AWD availability and the V6 option, while SLT1 brings leather upholstery, upgraded front seats, a Bose stereo, and standard blind-spot monitoring, lane-departure warning, rear cross-traffic alert, and rear parking sensors. SLT2 adds 20-inch wheels, a trailering package, heated second-row seats, lane-keep assist, auto high beams, front parking sensors, and low-speed forward-collision warning with auto braking. Denali adds an 8-inch touchscreen with navigation, virtual gauges, heated and ventilated front seats, a heated steering wheel, xenon headlights, and a hands-free liftgate.
• Powertrain: The 2.5-liter 4-cylinder makes 193 horsepower and 188 pound-feet of torque, but it is best suited to commuter duty and returns 21 mpg city and 26 mpg highway. The 3.6-liter V6 makes 310 hp and 271 lb-ft of torque, reaches 60 mph in just over 6 seconds, and returns 17 mpg city, 25 mpg highway, and 20 combined. Both engines use the 6-speed transmission, which can feel lurchy at low speeds and sluggish at highway speeds.
• Safety package: The Driver Alert I package adds blind-spot monitoring, lane-departure warning, rear cross-traffic alert, and rear parking sensors. Driver Alert II adds lane-keep assist, auto high beams, front parking sensors, and low-speed forward-collision warning with auto braking. The most advanced adaptive cruise with full-speed auto braking is limited to Denali.
• Infotainment: The base setup includes a 7-inch touchscreen with Intellilink, Android Auto, Apple CarPlay, and a 4G LTE Wi-Fi hotspot. Higher trims add an upgraded driver’s display, and Denali gets an 8-inch touchscreen with navigation and virtual gauges.
• Fuel efficiency: The 2.5-liter engine returns 21 mpg city and 26 mpg highway. The 3.6-liter V6 returns 17 mpg city, 25 mpg highway, and 20 combined.

Which 2018 GMC Acadia trim should I buy?

The 2018 GMC Acadia is offered in 6 trim levels: SL, SLE, SLE1, SLE2, SLT1, SLT2, Denali.

Here's the short version:

• Base trim: The SL is the least expensive path in, but it locks you into the 2.5-liter 4-cylinder and front-wheel drive, so you give up powertrain flexibility.
• Sweet-spot trim: The SLE2 is the best value if you want more everyday convenience, because it adds heated power front seats, a power liftgate, roof rails, remote start, and standard second-row captain’s chairs.
• Premium/top trim: The Denali is the luxury pick, with the larger touchscreen, navigation, virtual gauges, heated and ventilated front seats, a heated steering wheel, xenon headlights, and a hands-free liftgate.

For safety-package shoppers, the Driver Alert II package is the one to target because it adds the most useful driver-assistance features.

Is now a good time to buy a used 2018 GMC Acadia?

This is a moderate market for selective buyers, with enough inventory and pricing softness to reward comparison shopping.

• Deal availability: 30.7% of listings are priced as good or great deals.
• Inventory: There are 2,697 listings available.
• Price trend: Prices have softened 11.12% compared with last year.
• Clean inventory: 62.7% of listings are accident-free.

If you find a listing below $15,809, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 GMC Acadia's resale value?

The current average of $15,799 sits slightly below last year's $17,776.

That price movement suggests the market has already adjusted downward, which can help you buy at a more favorable point in the cycle. For a future seller, that also means resale upside may be more limited unless your Acadia is especially well equipped, well maintained, and cleanly documented. Strong condition and desirable features should matter more than ever if you want to protect value later.

Vehicles with strong owner satisfaction ratings, like this model year's 4.79/5, tend to retain buyer demand, which supports resale value over time.

Is the 2018 GMC Acadia safe?

It was named a Top Safety Pick by IIHS when equipped with the Driver Alert II package, and it earns five-star ratings in frontal collision tests and four-star ratings in all other NHTSA tests.

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

The Acadia includes standard 4-wheel antilock disc brakes, traction and stability control, a full suite of airbags, driver’s knee and inboard driver’s seat bags, and Teen Driver technology for monitoring younger drivers. The Driver Alert packages add blind-spot monitoring, lane-departure warning, rear cross-traffic alert, rear parking sensors, lane-keep assist, auto high beams, front parking sensors, and low-speed forward-collision warning with auto braking. The main caveat is that the strongest IIHS result depends on the Driver Alert II package, and the most advanced adaptive cruise with full-speed auto braking is reserved for Denali.

Should I buy a 2018 GMC Acadia 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:

• 30.7% of listings are priced as good or great deals.
• At 62.7% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 11.12% compared with last year.
• Owners rate it 4.79/5 — a strong satisfaction signal.
• The V6 is now available on more trims, improving power and towing capability.

Consider the 2017 if:

• At $13,384, the 2017 costs less than the current year's $15,799 average.
• It introduced the lighter redesign and improved efficiency.

Consider the 2019 if:

• At $17,801, the 2019 costs more than the current year's $15,799 average.
• It adds a more upscale cabin and a broader sense of refinement.

The bottom line: If you want the best balance of price, owner satisfaction, and available V6 power, the 2018 is the primary year to target. If your budget is tighter, the 2017 can save you money, while the 2019 makes sense if you’re willing to pay more for a newer-feeling cabin and a more polished overall package.

These recommendations are based on CarGurus' proprietary market data from July 31, 2026, CarGurus experts' opinions, and generative AI.