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
  • 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

    $18,488

    116,763 mi.
    Est. $344/mo

    The Sharpest Rides

    4.4
    Check Availability
    Englewood, CO (10 mi)
    Quick view
  • 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

    $12,988

    131,556 mi.
    Est. $242/mo

    The Sharpest Rides

    4.4
    Check Availability
    Englewood, CO (10 mi)
    Quick view
  • $17,898

    86,468 mi.
    Est. $333/mo

    AutoNation Dodge Ram Broadway

    4.4
    Check Availability
    Littleton, CO (13 mi)
    Quick view
  • 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

    $17,998

    95,850 mi.
    Est. $335/mo

    CarMax Kansas City

    4.1
    Check Availability
    Free delivery to Federal Heights, CO (11 mi)
    Quick view
  • 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

    $16,998

    107,528 mi.
    Est. $316/mo

    CarMax Colorado Springs

    4.5
    Check Availability
    Free delivery to Federal Heights, CO (11 mi)
    Quick view
  • 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

    $13,499

    $1K
    130,996 mi.
    Est. $251/mo

    AutoNation Dodge Ram Colorado Springs

    4.3
    Check Availability
    Colorado Springs, CO (58 mi)
    Quick view
  • 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

    $18,380

    $377
    89,493 mi.
    Est. $342/mo

    Edmond Hyundai

    3.8
    Check Availability
    Oklahoma City, OK (496 mi)
    Quick view
  • 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

    $15,080

    117,637 mi.
    Est. $281/mo

    Car Store USA

    2.8
    Check Availability
    Wichita, KS (438 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

    $23,995

    65,863 mi.
    Est. $447/mo

    Auto World

    Check Availability
    Hays, KS (304 mi)
    Quick view
  • 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

    $17,898

    $984
    90,603 mi.
    Est. $333/mo

    Edmond Hyundai

    3.8
    Check Availability
    Oklahoma City, OK (496 mi)
    Quick view
  • 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

    $23,249

    $500
    58,434 mi.
    Est. $433/mo

    Loveland Buick GMC

    Check Availability
    Loveland, CO (47 mi)
    Quick view
  • 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

    $19,175

    $300
    89,717 mi.
    Est. $357/mo

    Southtowne Mitsubishi

    4.7
    Check Availability
    Sandy, UT (374 mi)
    Quick view
  • 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

    $16,902

    78,795 mi.
    Est. $315/mo

    INFINITI of Albuquerque

    3.6
    Check Availability
    Albuquerque, NM (335 mi)
    Quick view

About the 2021 GMC Terrain SLT

Basics

SLT shown.

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 SLT
FAQs

How much does the 2021 GMC Terrain SLT cost?

The 2021 GMC Terrain SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Terrain SLT is $19,450, with pricing starting at $12,988.

What is the MPG of the 2021 GMC Terrain SLT?

The 2021 GMC Terrain SLT 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 options, driving conditions, driving habits, vehicle maintenance, and other factors.

Is the 2021 GMC Terrain SLT 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.

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

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