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
  • Blue Emerald Metallic 2021 GMC Terrain SLEBlue Emerald Metallic 2021 GMC Terrain SLEBlue Emerald Metallic 2021 GMC Terrain SLEBlue Emerald Metallic 2021 GMC Terrain SLEBlue Emerald Metallic 2021 GMC Terrain SLEBlue Emerald Metallic 2021 GMC Terrain SLE

    $20,500

    57,237 mi.
    Est. $381/mo

    Classic Chevrolet Owasso

    4.5
    Check Availability
    Owasso, OK (25 mi)

    Quick view
  • Satin 2021 GMC Terrain SLTSatin 2021 GMC Terrain SLTSatin 2021 GMC Terrain SLTSatin 2021 GMC Terrain SLTSatin 2021 GMC Terrain SLTSatin 2021 GMC Terrain SLT

    $17,450

    100,400 mi.
    Est. $324/mo

    Quality Value Auto Sales

    Check Availability
    Broken Arrow, OK (11 mi)
    Quick view
  • Ebony Twilight Metallic 2021 GMC Terrain SLEEbony Twilight Metallic 2021 GMC Terrain SLEEbony Twilight Metallic 2021 GMC Terrain SLEEbony Twilight Metallic 2021 GMC Terrain SLEEbony Twilight Metallic 2021 GMC Terrain SLEEbony Twilight Metallic 2021 GMC Terrain SLE

    $17,000

    81,483 mi.
    Est. $316/mo

    Ferguson Superstore

    4.9
    Check Availability
    Broken Arrow, OK (11 mi)
    Quick view
  • Not Priced

    98,631 mi.

    Marc Miller Buick GMC

    3.9
    Check Availability
    Tulsa, OK (12 mi)
    Quick view
  • 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

    $18,645

    61,093 mi.
    Est. $346/mo

    Autos of Chicago

    4.4
    Check Availability
    $601 delivery from Arlington Heights, IL (602 mi)
    Quick view
  • 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. $334/mo

    CarMax Tinley Park

    Check Availability
    $249 delivery to Tulsa, OK (8 mi)
    Quick view
  • 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

    $17,346

    87,677 mi.
    Est. $322/mo

    Melton Sales

    4.6
    Check Availability
    Claremore, OK (31 mi)
    Quick view
  • 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

    $16,380

    129,320 mi.
    Est. $304/mo

    Crain Kia of Fort Smith

    2.9
    Check Availability
    Fort Smith, AR (93 mi)
    Quick view
  • 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

    $16,987

    95,023 mi.
    Est. $315/mo

    Bob Howard Hyundai

    4.5
    Check Availability
    Oklahoma City, OK (100 mi)
    Quick view

GMC Terrain prices by year

Model year Average price Deals
2026 GMC Terrain $39,572
2024 GMC Terrain $21,643 9 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 $18,939, with pricing starting at $10,900.

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)
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