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  • Graphite Gray Metallic 2021 GMC Terrain SLTGraphite Gray Metallic 2021 GMC Terrain SLTGraphite Gray Metallic 2021 GMC Terrain SLTGraphite Gray Metallic 2021 GMC Terrain SLTGraphite Gray Metallic 2021 GMC Terrain SLTGraphite Gray Metallic 2021 GMC Terrain SLT

    $13,719

    117,774 mi.
    Est. $249/mo

    Maserati Englewood Cliffs

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    Englewood Cliffs, NJ (13 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

    $15,959

    $100
    71,210 mi.
    Est. $290/mo

    Sansone Rt 1 Auto Mall

    4.9
    Check Availability
    Avenel, NJ (14 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

    $14,499

    120,839 mi.
    Est. $264/mo

    Auto Spot LLC

    4.5
    Check Availability
    Woodridge, NJ (8 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

    $16,999

    85,254 mi.
    Est. $309/mo

    Auto Spot LLC

    4.5
    Check Availability
    Woodridge, NJ (8 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

    $15,999

    107,839 mi.
    Est. $291/mo

    Auto Spot LLC

    4.5
    Check Availability
    Woodridge, NJ (8 mi)
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  • Gray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLT

    $15,650

    103,667 mi.
    Est. $284/mo

    Magic Auto Sales

    4.8
    Check Availability
    Little Ferry, NJ (8 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

    $18,995

    65,796 mi.
    Est. $345/mo

    The Car House

    3.2
    Check Availability
    Butler, NJ (21 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

    $19,691

    $2.2K
    64,437 mi.
    Est. $358/mo

    Sawyer Lyons Buick GMC of Randolph

    3.6
    Check Availability
    Randolph, NJ (27 mi)
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  • Gray 2021 GMC Terrain SLE

    $14,999

    65,000 mi.
    Est. $273/mo

    Private seller: Israel

    Contact Seller
    New York, NY (13 mi)
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  • Gray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLTGray 2021 GMC Terrain SLT

    $24,998

    34,718 mi.
    Est. $454/mo

    CarMax Lynchburg

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    $349 delivery to Wayne, NJ (16 mi)
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  • Blue 2021 GMC Terrain SLEBlue 2021 GMC Terrain SLEBlue 2021 GMC Terrain SLEBlue 2021 GMC Terrain SLEBlue 2021 GMC Terrain SLEBlue 2021 GMC Terrain SLE

    $18,998

    79,059 mi.
    Est. $345/mo

    CarMax Greensboro

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    $299 delivery to Wayne, NJ (16 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

    $20,208

    $150
    35,762 mi.
    Est. $367/mo

    Jim Curley GMC of Lakewood

    5.0
    Check Availability
    Lakewood Township, NJ (50 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

    $17,593

    106,470 mi.
    Est. $320/mo

    T&T Coast GMC

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    Cranbury, NJ (39 mi)
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  • $20,196

    71,005 mi.
    Est. $367/mo

    Northway Automotive of Newton 2

    4.5
    Check Availability
    Newton, NJ (37 mi)
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GMC Terrain prices by year

Model year Average price Deals
2026 GMC Terrain $39,141 5 Great deals
2024 GMC Terrain $26,661 18 Good deals
2023 GMC Terrain $24,669 25 Great deals
2022 GMC Terrain $22,889 13 Great deals
2020 GMC Terrain $15,927 8 Great deals
2018 GMC Terrain $14,276 8 Great 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 $18,992, 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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