Used 2018 GMC Acadia for Sale nearBoston, MA

How much does the 2018 GMC Acadia cost?

Prices have softened 11.36% compared to this time last year, making it a favorable time to shop this model year.

There are 2,734 listings available, which suggests solid inventory for used shoppers.

Is the 2018 GMC Acadia a good car?

Yes — the 2018 GMC Acadia earns a 4.8/5 user rating and a 7.2/10 expert rating. The model scores 8/10 across Form and function and Safety.

Owners consistently praise the spacious, comfortable interior, the roomy design, and the feature-rich cabin. The review summary also points to a safe driving experience and family-friendly usability, which fits the Acadia’s three-row layout and broad appeal for everyday use. With the current market showing 32.7% good or great deals, you have some room to shop selectively.

Is the 2018 GMC Acadia reliable?

Owners rate it 4.8/5, a strong signal of long-term satisfaction.

The owner feedback points to a dependable, comfortable, and family-friendly SUV that many people feel good about living with over time. The expert notes also emphasize improved handling, braking, and fuel economy after the redesign, while the V6 adds more confidence for towing and daily driving. The main long-term ownership risk for used buyers is making sure you choose a well-maintained example with the right equipment for your needs.

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

At 61.2% 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 thorough inspection of bodywork, safety systems, and interior condition. Because this model’s appeal depends heavily on trim content and equipment, it’s worth confirming that the features you want are actually present on the specific listing. Pay close attention to signs of wear that could affect comfort, cargo usability, or family-duty practicality.

Key things to evaluate:

• Trim level: The SL trim is the most basic version, with the 2.5-liter four-cylinder engine, front-wheel drive, a 7-inch touchscreen, Android Auto, Apple CarPlay, and a 4G LTE Wi-Fi hotspot. The SLE adds all-wheel drive availability and opens the door to the V6, while the SLE2 brings more comfort and convenience with heated power front seats, a power liftgate, roof rails, and remote start. The SLT1 adds leather, upgraded seating, and more driver-assistance features, while the SLT2 layers on more safety tech and a trailering package. The Denali is the most luxurious choice, with an upgraded touchscreen, navigation, heated and ventilated front seats, and a hands-free liftgate.
• Powertrain: The 2.5-liter four-cylinder makes 193 hp and is described as inadequate for anything beyond commuter duty. The 3.6-liter V6 makes 310 hp and is the better choice if you want towing, hauling, or stronger everyday performance. Both engines use a 6-speed transmission that can feel sluggish.
• Safety package: Driver Alert I includes 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. Some of the more advanced safety features are tied to higher trims or packages.
• 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, a larger touchscreen, virtual gauges, and navigation.
• Fuel efficiency: The four-cylinder returns 21 mpg city and 26 mpg highway. The 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:

• SL: This is the value entry point if you want the lowest-cost way into the Acadia, but it comes with the four-cylinder engine and front-wheel drive only. You still get a useful standard tech setup, including the touchscreen, smartphone integration, and Wi-Fi hotspot, so it works best if you care more about price than power.
• SLE: This is the trim that opens up the Acadia’s broader appeal because it adds all-wheel drive availability and unlocks the V6 option. If you want the best balance of price, capability, and everyday usability, this is the trim to focus on first.
• SLE1: This trim adds LED running lights and satellite radio, making it a modest step up in convenience and appearance. It makes sense if you want a little more equipment without moving too far up the price ladder.
• SLE2: This is the better-equipped comfort choice, with heated power front seats, a power liftgate, fog lights, roof rails, remote start, and standard second-row captain’s chairs. It’s a strong pick if you want easier third-row access and more family-friendly convenience.
• SLT1: This trim brings leather upholstery, upgraded front seats, a better driver display, a Bose stereo, and standard blind-spot monitoring plus other driver aids. It’s a strong middle-ground choice for shoppers who want a more upscale feel without jumping to the top end.
• SLT2: This is the best-equipped mainstream trim, adding 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. It’s the right pick if you want the most safety and utility before entering luxury pricing.
• Denali: This is the luxury trim, with navigation, virtual gauges, heated and ventilated front seats, a heated steering wheel, xenon headlights, a hands-free liftgate, and unique styling. Choose it only if you want the most premium Acadia experience and are comfortable with the higher price.

The safety package is especially important here: the Acadia earned its strongest safety recognition only when equipped with Driver Alert II.

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

This is a moderate market for selective buyers, with enough inventory to shop carefully and enough deal activity to reward patience.

• Deal availability: 32.7% of listings are priced as good or great deals.
• Inventory: There are 2,734 listings available.
• Price trend: Prices have softened 11.36% compared with last year.
• Clean inventory: 61.2% of listings are accident-free.

If you find a listing below $15,172, 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 $15,172 sits slightly below last year's $17,117.

That price movement suggests the Acadia has already absorbed a meaningful amount of depreciation, which can help future sellers if they buy at the right price. A lower entry point today can reduce the amount of value left to lose over the next ownership cycle. Strong equipment, especially the V6 and desirable safety content, should help support demand when it’s time to sell.

Vehicles with strong owner satisfaction ratings, like this model year's 4.8/5, tend to retain buyer demand, which supports resale value over time.

Is the 2018 GMC Acadia safe?

The 2018 GMC Acadia 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 an 8/10 safety score from our experts.

The available Driver Alert I package includes 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. Standard safety equipment also includes 4-wheel antilock disc brakes, traction and stability control, multiple airbags, and Teen Driver technology.

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:

• 32.7% of listings are priced as good or great deals.
• At 61.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 11.36% compared with last year.
• Owners rate it 4.8/5 — a strong satisfaction signal.
• The V6 is available more broadly, giving you better towing and everyday performance.

Consider the 2017 if:

• At $12,793, the 2017 costs less than the current year's $15,172 average.
• It introduced the lighter redesign and a more modern feel.

Consider the 2019 if:

• At $16,837, the 2019 costs more than the current year's $15,172 average.
• It feels more upscale and distinctive.

The bottom line: If you want the best mix of price, features, and V6 availability, the 2018 is the smart default. If your budget is tighter, the 2017 can save you money, while the 2019 is worth a look if you want a more refined feel and can spend more.

How does the 2018 GMC Acadia compare to the 2018 Chevrolet Traverse?

Our experts score the 2018 GMC Acadia 7.2/10 and the 2018 Chevrolet Traverse 8/10. The Traverse has the stronger overall expert score, more power, and slightly better highway fuel economy, while the Acadia offers a lower average used price and a bit more inventory. If you want the better value play, the Acadia is easier to justify; if you want the stronger all-around performer, the Traverse has the edge.

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