Used 2020 GMC Terrain for Sale near Illinois

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 $16,434
• 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 budget-friendly option without sacrificing essential features.

• Avg. market price: $16,434 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 1,544 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 capability without paying for higher trims.

• Avg. market price: $17,364 (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 balance of features and price without going for the top trim.

• Avg. market price: $16,635 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 825 listings
• View SLT FWD listings

SLT AWD — "Who It's For"

The SLT AWD is the pick for shoppers who want luxury features and all-wheel drive without the highest price tag.

• Avg. market price: $17,279 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 2,013 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 premium features and a refined driving experience.

• Avg. market price: $21,290 (updated weekly)
• MPG/MPGe: 22 city / 28 hwy
• Inventory: 53 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 and performance in a compact SUV.

• Avg. market price: $21,382 (updated weekly)
• MPG/MPGe: 21 city / 26 hwy
• Inventory: 1,140 listings — widest selection in the lineup
• View Denali AWD listings

Trim Recommendations

Most Popular — SLT AWD

With 2,013 active listings, the SLT AWD is the clear volume leader in the lineup.

Browse SLT AWD listings

Best Budget Option — SLE FWD

At $16,434 avg market price — below the lineup median of $17,321 — it's the most accessible entry point.

Browse SLE 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 2, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 GMC Terrain cost?

Prices have softened 9.08% compared to this time last year, making it a favorable time to shop this model year.

There are 2,242 listings available, which gives you a solid pool of options to compare.

If you find a listing below $17,636.99, that's toward the low end of the year-round range and worth acting on quickly.

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 repeatedly praise its comfort and safety features, along with its spacious interior and economical performance. Many also like the luxurious feel and intuitive entertainment system, especially in the Denali model.

That lines up well with the Terrain’s use case as a compact SUV that leans toward comfort and premium touches rather than maximum utility. If you want a small SUV with a polished cabin and a strong feature set, it fits that brief well.

With 31.7% of listings marked as good or great deals, you have a meaningful chance to find a competitively priced example.

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 vehicle that many drivers find dependable in daily use, with comfort and economical performance standing out as recurring strengths. The repeated praise for its safety features and overall livability also suggests a model that many owners feel good about keeping long term.

For used buyers, that means the bigger ownership risk is less about broad satisfaction 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 66.1% 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 past damage. After that, prioritize a pre-purchase inspection, especially if the listing price looks unusually attractive. Focus your condition check on signs of prior repair quality, wear consistency, and whether the vehicle feels as well-kept as the photos and description suggest.

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

This is a moderate buyer’s market, so you can be selective without expecting every listing to be a bargain.

• Deal availability: 31.7% of listings are priced as good or great deals.
• Inventory: There are 2,242 listings available.
• Price trend: Prices have softened 9.08% compared with last year.
• Clean inventory: 66.1% of listings are accident-free.

If you find a listing below $17,636.99, 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 $17,662 sits slightly below last year's $19,426.

That price movement suggests the Terrain has softened enough to create a more approachable entry point for used buyers, but it also means future sellers may need to price carefully to stay competitive. If you buy well now and keep the vehicle in strong condition, you may be better positioned when it comes time to resell. The model’s broad appeal as a comfortable, well-equipped compact SUV should help support demand.

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:

• 31.7% of listings are priced as good or great deals.
• At 66.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 9.08% compared with last year.
• Owners rate it 4.43/5 — a solid satisfaction signal.

The bottom line: If you want the strongest balance of current pricing, owner satisfaction, and a well-equipped compact SUV experience, the 2020 is the primary year to target. If you’re especially price-sensitive, you can also compare nearby years to see whether a cleaner or better-equipped example offers more value for the money, but the 2020 already gives you a compelling mix of affordability and appeal.

These recommendations are based on CarGurus' proprietary market data from September 4, 2026, CarGurus experts' opinions, and generative AI.