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  • Quicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLT

    $23,991

    47,248 mi.
    Est. $443/mo

    Westside Chevrolet

    4.9
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    Katy, TX (25 mi)

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  • White Frost Tri-Coat 2021 GMC Terrain SLTWhite Frost Tri-Coat 2021 GMC Terrain SLTWhite Frost Tri-Coat 2021 GMC Terrain SLTWhite Frost Tri-Coat 2021 GMC Terrain SLTWhite Frost Tri-Coat 2021 GMC Terrain SLTWhite Frost Tri-Coat 2021 GMC Terrain SLT

    $22,890

    $1K
    37,135 mi.
    Est. $422/mo

    Group 1 Buick GMC North

    4.4
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    Houston, TX (17 mi)
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  • Quartz 2021 GMC Terrain SLTQuartz 2021 GMC Terrain SLTQuartz 2021 GMC Terrain SLTQuartz 2021 GMC Terrain SLTQuartz 2021 GMC Terrain SLTQuartz 2021 GMC Terrain SLT

    $20,216

    65,319 mi.
    Est. $373/mo

    Gay Family Auto

    4.8
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    Dickinson, TX (30 mi)
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  • Silver 2021 GMC Terrain SLTSilver 2021 GMC Terrain SLTSilver 2021 GMC Terrain SLTSilver 2021 GMC Terrain SLTSilver 2021 GMC Terrain SLTSilver 2021 GMC Terrain SLT

    $21,998

    54,960 mi.
    Est. $406/mo

    CarMax Cy-Fair

    4.4
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    Houston, TX (17 mi)
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  • Black 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLT

    $20,998

    55,256 mi.
    Est. $388/mo

    CarMax Southwest Freeway

    4.7
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    Houston, TX (11 mi)
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  • White 2021 GMC Terrain SLEWhite 2021 GMC Terrain SLEWhite 2021 GMC Terrain SLEWhite 2021 GMC Terrain SLEWhite 2021 GMC Terrain SLEWhite 2021 GMC Terrain SLE

    $21,998

    59,343 mi.
    Est. $406/mo

    CarMax Fort Bend

    4.5
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    Richmond, TX (27 mi)
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  • Blue Emerald Metallic 2021 GMC Terrain SLE

    $17,988

    74,821 mi.
    Est. $332/mo

    Archer Kia

    4.0
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    Houston, TX (16 mi)
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  • Gray 2021 GMC Terrain SLEGray 2021 GMC Terrain SLEGray 2021 GMC Terrain SLEGray 2021 GMC Terrain SLEGray 2021 GMC Terrain SLEGray 2021 GMC Terrain SLE

    $17,998

    104,004 mi.
    Est. $332/mo

    CarMax McKinney

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    $99 delivery to Houston, TX (11 mi)
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  • White 2021 GMC Terrain SLTWhite 2021 GMC Terrain SLTWhite 2021 GMC Terrain SLTWhite 2021 GMC Terrain SLTWhite 2021 GMC Terrain SLTWhite 2021 GMC Terrain SLT

    $18,998

    84,458 mi.
    Est. $351/mo

    CarMax Plano

    4.4
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    $99 delivery to Houston, TX (11 mi)
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  • Summit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLT

    $13,625

    $3K
    113,364 mi.
    Est. $251/mo

    CAG - Austin INFINITI

    4.6
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    Austin, TX (147 mi)
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  • Red Quartz Tintcoat 2021 GMC Terrain SLERed Quartz Tintcoat 2021 GMC Terrain SLERed Quartz Tintcoat 2021 GMC Terrain SLERed Quartz Tintcoat 2021 GMC Terrain SLERed Quartz Tintcoat 2021 GMC Terrain SLERed Quartz Tintcoat 2021 GMC Terrain SLE

    $20,995

    37,437 mi.
    Est. $387/mo

    El Dorado Mazda

    4.5
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    McKinney, TX (249 mi)
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  • Summit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLE

    $19,900

    50,292 mi.
    Est. $367/mo

    Shottenkirk Hyundai of Granbury

    4.7
    Check Availability
    Granbury, TX (231 mi)
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  • Quicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLTQuicksilver Metallic 2021 GMC Terrain SLT

    $19,195

    102,922 mi.
    Est. $354/mo

    DriveTime of Lewisville

    4.1
    Check Availability
    Lewisville, TX (243 mi)
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  • Black 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLTBlack 2021 GMC Terrain SLT

    $13,850

    127,150 mi.
    Est. $256/mo

    Euro Car Tech

    Check Availability
    Arlington, TX (230 mi)
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  • Summit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLESummit White 2021 GMC Terrain SLE

    $11,999

    $1K
    135,927 mi.
    Est. $221/mo

    Honda Cars of Rockwall

    3.5
    Check Availability
    Rockwall, TX (225 mi)
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  • Summit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLTSummit White 2021 GMC Terrain SLT

    $13,924

    $514
    120,906 mi.
    Est. $257/mo

    Vanguard Buick GMC of Carrollton

    3.7
    Check Availability
    Carrollton, TX (240 mi)
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  • Summit White 2021 GMC Terrain SLE

    $20,706

    50,956 mi.
    Est. $382/mo

    Gillman Honda of San Antonio

    4.8
    Check Availability
    Selma, TX (177 mi)
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GMC Terrain prices by year

Model year Average price Deals
2026 GMC Terrain $34,543 7 Good deals
2024 GMC Terrain $23,938 5 Great deals
2022 GMC Terrain $21,810 6 Good deals
2020 GMC Terrain $18,203 8 Good deals

About the 2021 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 2021 GMC Terrain
FAQs

How much does the 2021 GMC Terrain cost?

The 2021 GMC Terrain price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Terrain is $19,014, with pricing starting at $7,998.

What is the MPG of the 2021 GMC Terrain?

The 2021 GMC Terrain offers up to 25 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 2021 GMC Terrain reliable?

The 2021 GMC Terrain has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Terrain owners.

Is the 2021 GMC Terrain a good SUV?

Below are the Cars.com consumer ratings for the 2021 GMC Terrain.

(26 reviews)
Rating breakdown (out of 5):
Comfort
4.7
Interior
4.7
Performance
4.4
Value
4.4
Exterior
4.8
Reliability
4.7
Ratings (26 reviews)

88% of drivers recommend this car

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

Denali (2 styles)

Style
FWD 4dr Denali AWD 4dr Denali
Inventory price
Starting at $35,900 Starting at $37,500
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)

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
FWD 4dr SLE AWD 4dr SLE
Inventory price
Starting at $28,500 Starting at $30,100
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 (2 styles)

Style
AWD 4dr SLT FWD 4dr SLT
Inventory price
Starting at $34,200 Starting at $32,600
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)
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