Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • Quicksilver Metallic 2020 GMC Terrain SLTQuicksilver Metallic 2020 GMC Terrain SLTQuicksilver Metallic 2020 GMC Terrain SLTQuicksilver Metallic 2020 GMC Terrain SLTQuicksilver Metallic 2020 GMC Terrain SLTQuicksilver Metallic 2020 GMC Terrain SLT

    $14,709

    117,218 mi.
    Est. $266/mo

    Bridge Auto Group

    4.0
    Check Availability
    Berlin, NJ (24 mi)
    Quick view
  • Satin Steel Metallic 2020 GMC Terrain SLTSatin Steel Metallic 2020 GMC Terrain SLTSatin Steel Metallic 2020 GMC Terrain SLTSatin Steel Metallic 2020 GMC Terrain SLTSatin Steel Metallic 2020 GMC Terrain SLTSatin Steel Metallic 2020 GMC Terrain SLT

    $26,955

    20,482 mi.
    Est. $487/mo

    Granite Run Buick GMC

    4.0
    Check Availability
    Media, PA (4 mi)
    Quick view
  • Quicksilver Metallic 2020 GMC Terrain SLEQuicksilver Metallic 2020 GMC Terrain SLEQuicksilver Metallic 2020 GMC Terrain SLEQuicksilver Metallic 2020 GMC Terrain SLEQuicksilver Metallic 2020 GMC Terrain SLEQuicksilver Metallic 2020 GMC Terrain SLE

    $13,928

    98,103 mi.
    Est. $252/mo

    CARMART

    Check Availability
    New Castle, DE (18 mi)
    Quick view
  • Ebony Twilight Metallic 2020 GMC Terrain SLEEbony Twilight Metallic 2020 GMC Terrain SLEEbony Twilight Metallic 2020 GMC Terrain SLEEbony Twilight Metallic 2020 GMC Terrain SLEEbony Twilight Metallic 2020 GMC Terrain SLEEbony Twilight Metallic 2020 GMC Terrain SLE

    $18,490

    80,426 mi.
    Est. $334/mo

    Jeff D'Ambrosio Chrysler Dodge Jeep Mits

    4.4
    Check Availability
    Downingtown, PA (19 mi)
    Quick view
  • Satin Steel Metallic 2020 GMC Terrain SLESatin Steel Metallic 2020 GMC Terrain SLESatin Steel Metallic 2020 GMC Terrain SLESatin Steel Metallic 2020 GMC Terrain SLESatin Steel Metallic 2020 GMC Terrain SLESatin Steel Metallic 2020 GMC Terrain SLE

    $20,999

    41,466 mi.
    Est. $379/mo

    Montgomeryville Nissan

    4.8
    Check Availability
    Montgomeryville, PA (25 mi)
    Quick view
  • Red Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLE

    $16,987

    64,996 mi.
    Est. $307/mo

    Colonial Volkswagen, Inc.

    Check Availability
    Feasterville Trevose, PA (27 mi)
    Quick view
  • Ebony Twilight Metallic 2020 GMC Terrain SLTEbony Twilight Metallic 2020 GMC Terrain SLTEbony Twilight Metallic 2020 GMC Terrain SLTEbony Twilight Metallic 2020 GMC Terrain SLTEbony Twilight Metallic 2020 GMC Terrain SLTEbony Twilight Metallic 2020 GMC Terrain SLT

    $18,595

    $500
    91,201 mi.
    Est. $336/mo

    DriveTime of New Castle

    Check Availability
    New Castle, DE (17 mi)
    Quick view
  • Ebony Twilight Metallic 2020 GMC Terrain SLT

    $20,285

    $100
    76,851 mi.
    Est. $367/mo

    Videon Chevrolet of Phoenixville

    4.7
    Check Availability
    Phoenixville, PA (19 mi)
    Quick view
  • $19,999

    60,200 mi.
    Est. $361/mo

    Kia of Coatesville

    3.3
    Check Availability
    Coatesville, PA (23 mi)
    Quick view
  • Not Priced

    60,142 mi.

    Patriot Chevrolet of Warminster

    4.0
    Check Availability
    Warminster, PA (27 mi)
    Quick view
  • Black 2020 GMC Terrain SLEBlack 2020 GMC Terrain SLEBlack 2020 GMC Terrain SLEBlack 2020 GMC Terrain SLEBlack 2020 GMC Terrain SLEBlack 2020 GMC Terrain SLE

    $19,998

    51,399 mi.
    Est. $361/mo

    CarMax Edison

    Check Availability
    $149 delivery to King of Prussia, PA (14 mi)
    Quick view
  • Black 2020 GMC Terrain SLTBlack 2020 GMC Terrain SLTBlack 2020 GMC Terrain SLTBlack 2020 GMC Terrain SLTBlack 2020 GMC Terrain SLTBlack 2020 GMC Terrain SLT

    $20,998

    55,628 mi.
    Est. $379/mo

    CarMax Cleveland East

    Check Availability
    $449 delivery to King of Prussia, PA (14 mi)
    Quick view
  • Summit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLE

    $16,997

    $300
    71,542 mi.
    Est. $307/mo

    Hamilton Honda

    4.1
    Check Availability
    Hamilton, NJ (44 mi)
    Quick view
  • Red Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLERed Quartz Tintcoat 2020 GMC Terrain SLE

    $17,909

    $897
    57,782 mi.
    Est. $324/mo

    Sands Chrysler Jeep Dodge RAM

    4.6
    Check Availability
    Quakertown, PA (40 mi)
    Quick view
  • Summit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLESummit White 2020 GMC Terrain SLE

    $18,489

    52,159 mi.
    Est. $334/mo

    ReedmanToll Auto World

    4.6
    Check Availability
    Langhorne, PA (33 mi)
    Quick view
  • Summit White 2020 GMC Terrain DenaliSummit White 2020 GMC Terrain DenaliSummit White 2020 GMC Terrain DenaliSummit White 2020 GMC Terrain DenaliSummit White 2020 GMC Terrain DenaliSummit White 2020 GMC Terrain Denali

    $24,495

    $200
    83,217 mi.
    Est. $443/mo

    DriveTime of Allentown

    4.2
    Check Availability
    Allentown, PA (48 mi)
    Quick view
  • White 2020 GMC Terrain SLTWhite 2020 GMC Terrain SLTWhite 2020 GMC Terrain SLTWhite 2020 GMC Terrain SLTWhite 2020 GMC Terrain SLTWhite 2020 GMC Terrain SLT

    $20,995

    49,142 mi.
    Est. $379/mo

    Flexible Auto Mall

    Check Availability
    ALLENTOWN, PA (47 mi)
    Quick view

GMC Terrain prices by year

Model year Average price Deals
2026 GMC Terrain $40,358 3 Good deals
2024 GMC Terrain $25,831 17 Good deals
2023 GMC Terrain $26,831 21 Good deals
2022 GMC Terrain $24,309 13 Good deals

About the 2020 GMC Terrain

Basics

SL shown (base trim).

Seating
5
Door count
4
Drivetrain
Front-wheel drive
Combined MPG
27
Transmission
9-Speed A/T
Engine
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)
Side view of the 2020 GMC Terrain
FAQs

How much does the 2020 GMC Terrain cost?

The 2020 GMC Terrain price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Terrain is $18,585, with pricing starting at $5,990.

What is the MPG of the 2020 GMC Terrain?

The 2020 GMC Terrain offers up to 26 MPG in city driving and 30 MPG on the highway for a combined rating of 27 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.

Is the 2020 GMC Terrain reliable?

The 2020 GMC Terrain has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Terrain owners.

Is the 2020 GMC Terrain a good SUV?

Below are the Cars.com consumer ratings for the 2020 GMC Terrain.

(87 reviews)
Rating breakdown (out of 5):
Comfort
4.7
Interior
4.6
Performance
4.4
Value
4.4
Exterior
4.8
Reliability
4.5
Ratings (87 reviews)

86% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.7
Interior
4.6
Performance
4.4
Value
4.4
Exterior
4.8
Reliability
4.5
Trims

Denali (2 styles)

Style
AWD 4dr Denali FWD 4dr Denali
Inventory price
Starting at $39,900 Starting at $38,300
Combined MPG
23 24
Engine
252.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline Fuel) 252.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline Fuel)

SL (1 style)

Style
FWD 4dr SL
Inventory price
Starting at $25,000
Combined MPG
27
Engine
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (2 styles)

Style
AWD 4dr SLE FWD 4dr SLE
Inventory price
Starting at $30,000 Starting at $28,400
Combined MPG
26 27
Engine
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE Diesel (1 style)

Style
FWD 4dr SLE Diesel *Ltd Avail*
Inventory price
Starting at $0
Combined MPG
32
Engine
137.0-hp, 1.6-liter, 4 Cylinder Engine (Diesel Fuel)

SLT (2 styles)

Style
FWD 4dr SLT AWD 4dr SLT
Inventory price
Starting at $31,200 Starting at $32,800
Combined MPG
27 26
Engine
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)

SLT Diesel (1 style)

Style
FWD 4dr SLT Diesel *Ltd Avail*
Inventory price
Starting at $0
Combined MPG
32
Engine
137.0-hp, 1.6-liter, 4 Cylinder Engine (Diesel Fuel)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed