Used 2020 GMC Terrain for Sale nearPortland, OR

Compare 2020 GMC Terrain Trims in Portland, OR

The 2020 GMC Terrain offers a range of trims from budget-friendly options to more luxurious models, catering to various needs and preferences.

• Starting at $16,484
• Best MPG/MPGe: 26 city / 30 hwy
• Most Popular: SLT AWD

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 FWD — "Who It's For"

The SLE FWD is the pick for shoppers who want a well-equipped SUV without paying for luxury features.

• Avg. market price: $19,958 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 33 listings
• View SLE FWD listings

SLE AWD — "Who It's For"

The SLE AWD is the pick for shoppers who want sporty performance and all-wheel drive without a hefty price tag.

• Avg. market price: $19,404 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 35 listings
• View SLE AWD listings

SLT FWD — "Who It's For"

The SLT FWD is the pick for shoppers who want a touch of luxury without breaking the bank.

• Avg. market price: $16,484 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 22 listings
• View SLT FWD listings

SLT AWD — "Who It's For"

The SLT AWD is the pick for shoppers who want a popular trim with all-wheel drive and premium features.

• Avg. market price: $18,346 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 57 listings
• View SLT AWD listings

Denali AWD — "Who It's For"

The Denali AWD is the pick for shoppers who want top-tier features and performance for adventurous driving.

• Avg. market price: $18,346 (updated weekly)
• MPG/MPGe: 21 city / 26 hwy
• Inventory: 33 listings
• View Denali AWD listings

Trim Recommendations

Most Popular — SLT AWD

With 57 active listings, the SLT AWD is the clear volume leader in the lineup.

Browse SLT AWD listings

Best Budget Option — SLT FWD

At $16,484 avg market price — below the lineup median of $18,346 — it's the most accessible entry point.

Browse SLT FWD listings

Best for Fuel Economy — SLE FWD

The SLE FWD offers the best fuel economy in the lineup at 26/30 MPG.

Browse SLE FWD listings

These recommendations are based on CarGurus' proprietary market data from September 24, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 GMC Terrain cost?

Prices have softened 9.77% compared to this time last year, making it a favorable time to shop this model year.

There are 2,221 listings available, which gives you a solid amount of inventory to compare.

Is the 2020 GMC Terrain a good car?

Generally — the 2020 GMC Terrain earns a 4.43/5 user rating, which points to strong owner satisfaction. Owners most often praise its comfort and safety features, along with its spacious interior and economical performance. The model also fits well if you want a compact SUV with a more premium feel, useful everyday features, and a cabin that works well for four adults or five at a pinch. With 32.1% of listings marked as good or great deals, you have a meaningful chance to find a competitive offer.

Is the 2020 GMC Terrain reliable?

Owners rate it 4.43/5, a solid signal of long-term satisfaction.

The owner feedback also emphasizes that the Terrain feels dependable in daily use, with comfort, safety, and economical performance coming through as recurring strengths. That kind of praise suggests the vehicle can be a trouble-free choice if you prioritize a polished, easygoing ownership experience. For used buyers, the main long-term risk is less about the overall reputation and more about finding a well-kept example with a clean history and consistent maintenance.

What should I look for when buying a used 2020 GMC Terrain?

At 67.4% 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 confirm accident records, title status, and ownership patterns before you commit. After that, prioritize a thorough inspection of body panels, alignment, tires, and interior wear so you can judge whether the vehicle’s condition matches the asking price. Because this model year has a sizable share of non-clean listings, it pays to focus on overall condition and documentation rather than relying on appearance alone.

Is now a good time to buy a used 2020 GMC Terrain?

This looks like a moderate, selective buyer’s market, so you can be choosy if you’re comparing multiple listings.

• Deal availability: 32.1% of listings are priced as good or great deals.
• Inventory: There are 2,221 listings available.
• Price trend: Prices have softened 9.77% compared with last year.
• Clean inventory: 67.4% of listings are accident-free.

If you find a listing below $17,536, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 GMC Terrain's resale value?

The current average of $17,536 sits slightly below last year's $19,435.

That softer pricing can help you buy at a more favorable point in the cycle, but it also means future resale gains may be more limited if the market stays soft. If you plan to sell later, condition and mileage will matter even more because buyers will have plenty of comparable listings to choose from. Strong ownership satisfaction can still help support demand when it’s time to resell.

Vehicles with solid owner satisfaction ratings, like this model year's 4.43/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2020 GMC Terrain or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 32.1% of listings are priced as good or great deals.
• At 67.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 9.77% compared with last year.
• Owners rate it 4.43/5 — a solid satisfaction signal.

The bottom line: The 2020 Terrain makes the most sense if you want the updated safety and tech package, a more premium-feeling compact SUV, and a market where pricing has eased enough to create some negotiating room. If you’re especially price-sensitive, a nearby model year may be worth comparing, but the 2020 is the better pick when you want the stronger feature set and can find a clean, well-priced example.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.