Used 2018 GMC Acadia for Sale near Seattle, WA
108 results
CarGurus Analysis:
2018 GMC Acadia
With 96 currently listed for sale near Seattle, WA and an average price of $12,689.00, 16.7% of 2018 GMC Acadia models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Acadia 4.77 / 5 stars.
74.0% of 2018 Acadia models on CarGurus are accident free.
The 2018 GMC Acadia offers a spacious and comfortable interior, a versatile range of trims, and the option of a powerful V6 engine, making it a compelling choice for families.
CarGurus Analysis: 2018 GMC Acadia
overall

Summary
With 96 currently listed for sale near Seattle, WA and an average price of $12,689.00, 16.7% of 2018 GMC Acadia models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Acadia 4.77 / 5 stars.
74.0% of 2018 Acadia models on CarGurus are accident free.
The 2018 GMC Acadia offers a spacious and comfortable interior, a versatile range of trims, and the option of a powerful V6 engine, making it a compelling choice for families.
Why it stands out
The 2018 GMC Acadia sets itself apart in the midsize SUV segment with its enhanced handling, diverse powertrain options including a new V6 available in more trims, and modern tech features that promote safety and convenience. This generation is notably lighter than its predecessor, making it easier to drive and park. Despite some trade-offs in cargo space and towing capacity, the spacious interior, adaptable seating arrangements, and advanced safety technologies make the Acadia appealing to families. While the base four-cylinder engine may fall short for those needing more power, the V6 delivers an impressive 310 horsepower, enhancing the Acadia's versatility and performance. Overall, the Acadia combines a refined ride with ample interior space, though prospective buyers may want to evaluate their needs regarding trunk capacity and towing limits.
Other model years to consider
- Average price: $25,709.00
- Good/great deal percentage: 85.6%
- User rating: 5 / 5
- Total listings: 90
- Average price: $30,902.00
- Good/great deal percentage: 93.2%
- User rating: 4.88 / 5
- Total listings: 74
- Average price: $22,318.00
- Good/great deal percentage: 23.6%
- User rating: 4.94 / 5
- Total listings: 72
This analysis is based on CarGurus' proprietary market data from May 5, 2026, CarGurus experts' opinions, and generative AI.
Relevant articles

2026 GMC Acadia Pricing, Specs, and Release Date
The GMC Acadia is a brash midsize SUV that’s equipped—and priced—like a bigger model. It gets a new top trim for 2026.

2025 GMC Acadia Pricing, Specs, and Release Date
The 2025 GMC Acadia, a mid-size crossover SUV with three rows of seating for up to seven passengers, underwent a significant update recently and continues to benefit from added safety and tech features, as well as a nicer interior.

Who Makes GMC Cars?
GMC is an American automaker that builds premium trucks and SUVs with capability and comfort as selling points. GMC is a division of General Motors and all of its vehicles share platforms with other GM products. Certain products, like its trucks, are very closely related to Chevrolet products.
4.8 Overall rating
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David A
Reviewed a 2018 GMC Acadia on Jun 30, 2025
The stereo system is low budget. Needs more quality , it couldn’t hurt considering the price for the vehicle.
Steve P
Reviewed a 2018 GMC SLT-2 AWD on Feb 22, 2026
My new/used 2018 Acadia is just what I was looking for. It has mostly all the bells and whistles. I thought it had a heated steering wheel, but I cant locate the button for it. Otherwise the 1 owner who owned it before me took really good care of it and it is very very tight! Nice find for me
Laurie P
Reviewed a 2018 GMC Acadia on Feb 23, 2022
I love my 2018 Acadia. I bought it in 2020 as a CPO vehicle, and it felt and looked brand new. My previous car was an 05 BMW X5 and drove like a sports car. I needed my next SUV to handle the road similarly and it had to be towable. It checked off those boxes easily. I also wanted a 3rd row seat. And the 2nd row seats had to be a bench seat to accommodate my 120lb dog. On top of all that, it had to be reliable!! I LOVE my Acadia and would recommend it to anyone.
April L
Reviewed a 2018 GMC Acadia on Jul 8, 2021
This car is spacious, sporty, and I think combines the features of an SUV and a minivan. It fits my lifestyle perfectly, and it is so fun to drive!
2018 GMC Acadia Trims
| Trim type | MSRP |
|---|---|
| SLT-2 AWD | $43,900 |
| SLE-1 FWD | $32,600 |
| Denali FWD | $45,100 |
| SLE-2 FWD | $35,200 |
| SLE-2 AWD | $37,200 |
| SLT-1 FWD | $38,500 |
| Denali AWD | $47,100 |
| SLT-1 AWD | $41,600 |
2018 GMC Acadia Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Acadia prices has changed over time.
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