Used 2020 GMC Terrain for SaleNationwide

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 preferences and needs.

• Starting at $15,599
• 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: $15,599 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 1,514 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.

• Avg. market price: $16,757 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 1,887 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 standard trim with added comfort and features without going overboard.

• Avg. market price: $15,970 (updated weekly)
• MPG/MPGe: 26 city / 30 hwy
• Inventory: 810 listings
• View SLT FWD listings

SLT AWD — "Who It's For"

The SLT AWD is the pick for shoppers who want a sporty all-wheel drive experience with premium features.

• Avg. market price: $17,013 (updated weekly)
• MPG/MPGe: 25 city / 28 hwy
• Inventory: 1,935 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 a luxurious experience with advanced features.

• Avg. market price: $20,538 (updated weekly)
• MPG/MPGe: 22 city / 28 hwy
• Inventory: 60 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 all weather conditions.

• Avg. market price: $21,229 (updated weekly)
• MPG/MPGe: 21 city / 26 hwy
• Inventory: 1,120 listings — widest selection in the lineup
• View Denali AWD listings

Trim Recommendations

Most Popular — SLT AWD

With 1,935 active listings, the SLT AWD is the clear volume leader in the lineup.

Browse SLT AWD listings

Best Budget Option — SLE FWD

At $15,599 avg market price — below the lineup median of $16,885 — 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 22, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 GMC Terrain cost?

Prices have softened 11.04% compared to this time last year, making it a favorable time to shop this model year.

There are 2,152 listings available, which gives you a solid pool of options to compare.

Is the 2020 GMC Terrain a good car?

Generally — the 2020 GMC Terrain earns a 4.4/5 user rating, which points to strong owner satisfaction. Owners commonly praise its comfort, safety features, spacious interior, and economical performance, and many also like the intuitive entertainment system and the more luxurious feel in Denali models. For you, that makes it a good fit if you want a compact SUV with a polished cabin, a comfortable ride, and a useful everyday setup. With 30.3% of listings marked as good or great deals, there are still worthwhile opportunities if you shop carefully.

Is the 2020 GMC Terrain reliable?

Owners rate it 4.4/5, a solid signal of long-term satisfaction.

The owner feedback points to a vehicle that many drivers find dependable for daily use, with comfort and safety features that help build confidence over time. The repeated praise for economical performance and the lack of major complaint themes in the summary suggest a generally trouble-free ownership experience for many buyers. For used shoppers, that means long-term ownership risk looks manageable, but you should still verify condition and maintenance history before you buy.

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

At 67.8% 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. After that, prioritize a thorough pre-purchase inspection, especially if the listing price looks unusually attractive. Focus on overall condition, signs of repair quality, and whether the interior, electronics, and ride quality match the seller’s description.

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 with some leverage if you know what you want.

• Deal availability: 30.3% of listings are priced as good or great deals.
• Inventory: There are 2,152 listings available.
• Price trend: Prices have softened 11.04% compared with last year.
• Clean inventory: 67.8% of listings are accident-free.

If you find a listing below $17,138, 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 $17,138 sits slightly below last year's $19,265.

That price movement suggests the Terrain has already absorbed a meaningful amount of depreciation, which can help future resale stability if you buy at the right price. If you keep the vehicle in good condition and avoid overpaying now, you may be better positioned when it comes time to sell. Vehicles with solid owner satisfaction ratings, like this model year's 4.4/5, 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:

• 30.3% of listings are priced as good or great deals.
• At 67.8% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 11.04% compared with last year.
• Owners rate it 4.4/5 — a solid satisfaction signal.

The bottom line: The 2020 Terrain makes the most sense if you want a well-equipped compact SUV with strong owner satisfaction and you can find a clean example at a competitive price. If you’re especially price-sensitive, a different year may offer a lower entry point, but the 2020 is the better target when you want a balanced mix of value, comfort, and features.

How does the 2020 GMC Terrain compare to the 2020 Chevrolet Equinox?

Read our full side-by-side expert comparison here.

These recommendations are based on CarGurus' proprietary market data from October 21, 2026, CarGurus experts' opinions, and generative AI.