Used 2021 GMC Terrain for Sale near Colorado

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Year:
2021
Make:
GMC
Model:
Terrain
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
170 hp 1.5L I4
Exterior color:
Black (Ebony Twilight Metallic)
Combined gas mileage:
26 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
9-Speed Automatic
Mileage:
61,205
Stock #:
ML320122
VIN:
3GKALTEV3ML320122
Black (Ebony Twilight Metallic) 2021 GMC Terrain SUV / Crossover Four-Wheel Drive 9-Speed Automatic
Price drop

-$750

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2021 GMC Terrain

SLE AWD

61,205 mi

Golden, CO
11 mi away
Good Deal

$18,999

$18,249

Year:
2020
Make:
GMC
Model:
Terrain
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
1.5L I4
Exterior color:
White
Combined gas mileage:
26 MPG
Fuel type:
Gasoline
Interior color:
Gray
Transmission:
Automatic
Mileage:
76,836
Stock #:
5845
VIN:
3GKALVEV2LL111741
White 2020 GMC Terrain SUV / Crossover Four-Wheel Drive Automatic
Price drop

-$599

 

2020 GMC Terrain

SLT AWD

76,836 mi

Denver, CO
6 mi away
Good Deal

$16,899

$16,499

CarGurus Analysis:

2021 GMC Terrain

5.0

  • With 2,522 currently listed for sale and an average price of $18,338, 31.4% of 2021 GMC Terrains for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 GMC Terrain 5 / 5 stars.

  • 74.7% of 2021 Terrain models on CarGurus are accident free.

Research summarized using AI

Year:
2022
Make:
GMC
Model:
Terrain
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
All-Wheel Drive
Engine:
170 hp 1.5L I4
Exterior color:
White
Fuel type:
Gasoline
Interior color:
Black
Transmission:
9-Speed Automatic Overdrive
Mileage:
25,267
Stock #:
1951
VIN:
3GKALXEV9NL304841
White 2022 GMC Terrain SUV / Crossover All-Wheel Drive 9-Speed Automatic Overdrive

 

2022 GMC Terrain

Denali AWD

25,267 mi

Home delivery from Fresno, CA
Price includes $827 shipping
Good Deal

$27,009

CarGurus Analysis: 2021 GMC Terrain

Image Not Available

Summary

  • With 2,522 currently listed for sale and an average price of $18,338, 31.4% of 2021 GMC Terrains for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 GMC Terrain 5 / 5 stars.

  • 74.7% of 2021 Terrain models on CarGurus are accident free.

Why it stands out

The 2021 GMC Terrain stands out as a compact SUV that leans more toward comfort, value, and everyday usability than outright performance. It offers a roomy cabin for four adults, or five at a pinch, and its smooth ride and fuel efficiency are recurring strengths. Owners also tend to appreciate the stylish interior and the generous feature set, which helps the Terrain feel well equipped for the money.

For 2021, the Terrain’s powertrain lineup was simplified to the 1.5-liter turbocharged engine, so buyers looking at this model year get a straightforward setup rather than a wide range of choices. That engine is paired with either a continuously variable automatic transmission in front-wheel-drive models or an eight-speed automatic with all-wheel drive, and all-wheel-drive versions also gain a higher towing capacity. The Terrain’s safety equipment is another highlight, with features such as adaptive cruise control, lane keep assist with lane departure warning, enhanced automatic emergency braking, front pedestrian and bicyclist braking, intersection automatic emergency braking, rear cross traffic braking, reverse automatic braking, side bicyclist alert, and blind zone steering assist.

The main tradeoff is cargo space. The Terrain has 30 cubic feet behind the rear seats and up to 64 cubic feet with them folded, which is smaller than some key rivals. Some owners also mention minor omissions, including the lack of a standard auto wiper feature and a desire for stronger blind spot protection. Even so, the 2021 GMC Terrain remains appealing for shoppers who want a comfortable, well-equipped small SUV with good efficiency and a polished feel.

Other model years to consider

  • 2023 GMC Terrain

    • Average price: $24,304
    • Good/great deal percentage: 34.6%
    • User rating: 5 / 5
    • Total listings: 5,457
  • 2024 GMC Terrain

    • Average price: $24,409
    • Good/great deal percentage: 34.9%
    • User rating: 5 / 5
    • Total listings: 4,801
  • 2022 GMC Terrain

    • Average price: $21,811
    • Good/great deal percentage: 33.4%
    • User rating: 4.83 / 5
    • Total listings: 3,152

This analysis is based on CarGurus' proprietary market data from September 21, 2026, CarGurus experts' opinions, and generative AI.

*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.

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