Used 2020 GMC Terrain for Sale near Connecticut

Compare 2020 GMC Terrain Trims

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 $15,830
• 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 essential features without paying for extras. It's the most budget-friendly option in the lineup.

• Avg. market price: $15,830 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 1,520 listings — widest selection in the lineup
• View SLE FWD listings

SLE AWD — "Who It's For"

The SLE AWD is the pick for shoppers who want all-wheel drive without a hefty price tag. It balances affordability with capability.

• Avg. market price: $16,689 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 1,885 listings — widest selection in the lineup
• View SLE AWD listings

SLT FWD — "Who It's For"

The SLT FWD is the pick for shoppers who want a blend of comfort and standard features without going for the top trim.

• Avg. market price: $16,259 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 797 listings
• View SLT FWD listings

SLT AWD — "Who It's For"

The SLT AWD is the pick for shoppers who want sporty features and all-wheel drive. It's the most popular trim in the lineup.

• Avg. market price: $17,091 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 1,954 listings — widest selection in the lineup
• View SLT AWD listings

Denali FWD — "Who It's For"

The Denali FWD is the pick for shoppers who want luxury features without the off-road capability. It offers a premium experience.

• Avg. market price: $20,922 (updated weekly)
• MPG/MPGe: 22 city / 28 hwy
• Inventory: 62 listings — lower availability; may limit negotiating room
• View Denali FWD listings

Denali AWD — "Who It's For"

The Denali AWD is the pick for shoppers who want top-tier luxury with off-road capability. It's the most capable trim for adventurous drivers.

• Avg. market price: $21,349 (updated weekly)
• MPG/MPGe: 21 city / 26 hwy
• Inventory: 1,125 listings — widest selection in the lineup
• View Denali AWD listings

Trim Recommendations

Most Popular — SLT AWD

With 1,954 active listings, the SLT AWD is the clear volume leader in the lineup.

Browse SLT AWD listings

Best Budget Option — SLE FWD

At $15,830 avg market price — below the lineup median of $16,890 — it's the most accessible entry point.

Browse SLE FWD listings

Best for Fuel Economy — SLE FWD

The SLE FWD offers the best fuel efficiency in the lineup with 26/30 MPG/MPGe.

Browse SLE FWD listings

These recommendations are based on CarGurus' proprietary market data from October 15, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 GMC Terrain cost?

Prices have softened 10.93% compared to this time last year, making it a favorable time to shop this model year.

There are 2,157 listings available, which suggests you have a decent 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, safety features, spacious interior, and economical performance, and many also like the luxurious feel and intuitive entertainment system. That lines up well with its role as a compact SUV for shoppers who want a roomy, comfortable, well-equipped daily driver with a more premium feel than many rivals. With 34.5% of listings marked as good or great deals, you have some room to shop selectively.

Is the 2020 GMC Terrain reliable?

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

The owner feedback points to a dependable ownership experience centered on comfort, safety, and economical performance, with many drivers describing the cabin and tech as easy to live with over time. That kind of feedback is encouraging if you want a used SUV you can count on for everyday use. For long-term ownership, the main risk is less about broad satisfaction and more about finding a well-kept example that has been maintained consistently.

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

At 68.1% 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 or repeated claims. After that, prioritize a thorough pre-purchase inspection, especially for body condition, alignment, and signs of uneven wear that can hint at past repairs. Focus on overall condition and maintenance records, since a clean, well-kept example is the safest way to protect your money.

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

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile options.

• Deal availability: 34.5% of listings are priced as good or great deals.
• Inventory: There are 2,157 listings available.
• Price trend: Prices have softened 10.93% compared with last year.
• Clean inventory: 68.1% of listings are accident-free.

If you find a listing below $17,176, 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 $17,176 sits slightly below last year's $19,283.

That price movement suggests the market has cooled, which can help you buy more affordably now but may also limit how much value you recover later if prices stay soft. For a future seller, the upside is that the Terrain still has broad appeal thanks to its comfort, safety, and roomy cabin, which can help support demand. The downside is that a softer market can make timing more important if you want to maximize your return.

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:

• 34.5% of listings are priced as good or great deals.
• At 68.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 10.93% compared with last year.
• Owners rate it 4.43/5 — a solid satisfaction signal.

The bottom line: The 2020 is the right pick if you want a comfortable, well-equipped compact SUV and you can verify condition carefully. If you are especially price-sensitive, a nearby model year may be worth comparing, but the 2020 stands out as a balanced choice when you find a clean example at the right price.

These recommendations are based on CarGurus' proprietary market data from October 20, 2026, CarGurus experts' opinions, and generative AI.