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  • Satin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLE

    $16,959

    $500
    71,210 mi.
    Est. $308/mo

    Sansone Rt 1 Auto Mall

    4.9
    Check Availability
    Avenel, NJ (8 mi)
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  • Ebony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLT

    $17,495

    70,942 mi.
    Est. $318/mo

    Liberty Subaru

    4.9
    Check Availability
    Emerson, NJ (23 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

    $12,999

    103,125 mi.
    Est. $236/mo

    S I Finest Cars

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    Staten Island, NY (4 mi)
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  • Ebony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLT

    $18,995

    62,943 mi.
    Est. $345/mo

    Auto Haus of Irvington

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    Irvington, NJ (5 mi)
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  • Satin Steel Metallic 2021 GMC Terrain SLTSatin Steel Metallic 2021 GMC Terrain SLTSatin Steel Metallic 2021 GMC Terrain SLTSatin Steel Metallic 2021 GMC Terrain SLTSatin Steel Metallic 2021 GMC Terrain SLTSatin Steel Metallic 2021 GMC Terrain SLT

    $19,300

    $250
    34,509 mi.
    Est. $351/mo

    Island Auto Group

    3.8
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    Staten Island, NY (8 mi)
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  • Ebony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLTEbony Twilight Metallic 2021 GMC Terrain SLT

    $18,945

    61,093 mi.
    Est. $344/mo

    Autos of Chicago

    4.3
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    $721 delivery from Arlington Heights, IL (721 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

    97,195 mi.
    Est. $327/mo

    CarMax Tinley Park

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    $549 delivery to Edison, NJ (15 mi)
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  • Satin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLE

    $20,472

    46,325 mi.
    Est. $372/mo

    Napoli Kia

    4.6
    Check Availability
    Milford, CT (69 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

    $21,203

    32,746 mi.
    Est. $385/mo

    Fixl Automotive of Bartonsville

    5.0
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    Bartonsville, PA (63 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

    $24,995

    35,502 mi.
    Est. $454/mo

    Barlow Buick GMC

    4.8
    Check Availability
    Manahawkin, NJ (69 mi)
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  • Graphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLE

    $18,795

    64,134 mi.
    Est. $342/mo

    Bergey's Buick GMC

    4.6
    Check Availability
    Souderton, PA (67 mi)
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  • Graphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLEGraphite Gray Metallic 2021 GMC Terrain SLE

    $17,000

    $500
    77,411 mi.
    Est. $309/mo

    Ingersoll Auto of Danbury

    4.0
    Check Availability
    Danbury, CT (65 mi)
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  • Satin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLESatin Steel Metallic 2021 GMC Terrain SLE

    $16,995

    106,470 mi.
    Est. $309/mo

    T&T Coast GMC

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    Cranbury, NJ (32 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

    $19,795

    50,772 mi.
    Est. $360/mo

    Automotive Avenues

    4.8
    Check Availability
    Wall Township, NJ (32 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

    $15,495

    93,284 mi.
    Est. $282/mo

    Cottman Auto Mall

    5.0
    Check Availability
    Philadelphia, PA (64 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

    $19,998

    $497
    35,336 mi.
    Est. $364/mo

    Maritime Chevrolet of Fairfield

    4.3
    Check Availability
    Fairfield, CT (59 mi)
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  • Quicksilver Metallic 2021 GMC Terrain SLEQuicksilver Metallic 2021 GMC Terrain SLEQuicksilver Metallic 2021 GMC Terrain SLEQuicksilver Metallic 2021 GMC Terrain SLEQuicksilver Metallic 2021 GMC Terrain SLEQuicksilver Metallic 2021 GMC Terrain SLE

    $19,500

    $100
    42,738 mi.
    Est. $354/mo

    Suresky Chrysler Dodge Jeep Ram

    Check Availability
    Goshen, NY (51 mi)
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  • $21,550

    49,398 mi.
    Est. $392/mo

    CarShop Mt. Holly

    4.8
    Check Availability
    Mount Holly, NJ (56 mi)
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  • $18,995

    59,046 mi.
    Est. $345/mo

    Barlow Buick GMC

    4.8
    Check Availability
    Manahawkin, NJ (69 mi)
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GMC Terrain prices by year

Model year Average price Deals
2026 GMC Terrain $40,026 2 Good deals
2024 GMC Terrain $25,820 9 Great deals
2023 GMC Terrain $23,891 36 Good deals
2022 GMC Terrain $22,265 11 Great deals
2020 GMC Terrain $17,444 6 Great deals
2019 GMC Terrain $12,865 6 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 $18,741, with pricing starting at $10,500.

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.

What are some similar vehicles and competitors of the 2021 GMC Terrain?

The 2021 GMC Terrain compares to and/or competes against the following vehicles:


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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