Used 2021 GMC Terrain for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 50,364
- Stock #:
- MT25136B
- VIN:
- 3GKALSEX7LL329934
-$1,427
2020 GMC Terrain
Denali FWD
50,364 mi
$22,692
$22,164
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Smokey Quartz Metallic
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 92,453
- Stock #:
- ALN1558
- VIN:
- 3GKALPEV1LL140126
-$572
2020 GMC Terrain
SLT FWD
92,453 mi
$15,989
$15,417
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 89,361
- Stock #:
- D6737A
- VIN:
- 3GKALPEV0ML325995
2021 GMC Terrain
SLT FWD
89,361 mi
$17,289
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 29,034
- Stock #:
- HU32342
- VIN:
- 3GKALTEV9NL228742
-$1,299
2022 GMC Terrain
SLE AWD
29,034 mi
$21,797
$21,297
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 32,903
- Stock #:
- L286314
- VIN:
- 3GKALYEV7NL286314
2022 GMC Terrain
AT4 AWD
32,903 mi
$25,695
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 77,347
- Stock #:
- XC14880A
- VIN:
- 3GKALVEV4NL224318
2022 GMC Terrain
SLT AWD
77,347 mi
$19,796
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,444
- Stock #:
- S417961A
- VIN:
- 3GKALTEVXML348645
2021 GMC Terrain
SLE AWD
58,444 mi
$17,245
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 80,185
- Stock #:
- CU263270
- VIN:
- 3GKALMEV0LL263270
2020 GMC Terrain
SLE FWD
80,185 mi
$15,925
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 122,767
- Stock #:
- 26300A
- VIN:
- 3GKALPEV5LL299490
-$500
2020 GMC Terrain
SLT FWD
122,767 mi
$13,689
$13,189
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Black
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 71,201
- Stock #:
- BCDPNL149225
- VIN:
- 3GKALVEV5NL149225
-$777
2022 GMC Terrain
SLT AWD
71,201 mi
$20,225
$19,448
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Graphite Gray Metallic
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 40,368
- Stock #:
- 392736W
- VIN:
- 3GKALMEV5ML392736
2021 GMC Terrain
SLE FWD
40,368 mi
$19,100
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Medium Ash Gray/Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 85,022
- Stock #:
- L332620T
- VIN:
- 3GKALPEV3ML332620
-$500
2021 GMC Terrain
SLT FWD
85,022 mi
$17,396
$16,896
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,678
- Stock #:
- ST26-18A
- VIN:
- 3GKALTEV3NL192871
2022 GMC Terrain
SLE AWD
67,678 mi
$20,340
CarGurus Analysis:
2021 GMC Terrain
With 2,653 currently listed for sale and an average price of $18,608.00, 32.8% of 2021 GMC Terrains for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 GMC Terrain 5 / 5 stars.
76.9% of 2021 Terrain models on CarGurus are accident free.
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 35,617
- Stock #:
- N305946B
- VIN:
- 3GKALPEV7NL115203
2022 GMC Terrain
SLT FWD
35,617 mi
$23,066
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 74,959
- Stock #:
- 26L10231
- VIN:
- 3GKALVEVXNL126233
-$441
2022 GMC Terrain
SLT AWD
74,959 mi
$21,255
$20,814
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Blue
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 17,445
- Stock #:
- O07107A
- VIN:
- 3GKALPEV7ML375065
2021 GMC Terrain
SLT FWD
17,445 mi
$20,588
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 65,673
- Stock #:
- NL189434
- VIN:
- 3GKALMEV2NL189434
2022 GMC Terrain
SLE FWD
65,673 mi
$18,883
- Year:
- 2021
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 115,877
- Stock #:
- 251799B
- VIN:
- 3GKALPEV0ML308632
2021 GMC Terrain
SLT FWD
115,877 mi
$15,706
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 49,652
- Stock #:
- P3182A
- VIN:
- 3GKALTEV6NL144247
2022 GMC Terrain
SLE AWD
49,652 mi
$22,478
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Summit White
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 13,972
- Stock #:
- PL209164
- VIN:
- 3GKALMEV2NL209164
2022 GMC Terrain
SLE FWD
13,972 mi
$23,805
- Year:
- 2022
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 170 hp 1.5L I4
- Exterior color:
- Brown (Tan)
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 46,482
- Stock #:
- S074111A
- VIN:
- 3GKALYEV2NL274474
2022 GMC Terrain
AT4 AWD
46,482 mi
$21,628
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 80,800
- Stock #:
- 10261124T
- VIN:
- 3GKALMEV1LL261124
2020 GMC Terrain
SLE FWD
80,800 mi
$16,232
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- Silver
- Combined gas mileage:
- 23 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 109,553
- Stock #:
- 6GM1046T
- VIN:
- 3GKALVEX2LL132994
-$575
2020 GMC Terrain
SLT AWD
109,553 mi
$15,549
$14,974
CarGurus Analysis: 2021 GMC Terrain
Summary
With 2,653 currently listed for sale and an average price of $18,608.00, 32.8% of 2021 GMC Terrains for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 GMC Terrain 5 / 5 stars.
76.9% of 2021 Terrain models on CarGurus are accident free.
Why it stands out
The 2021 GMC Terrain stands out as a compact SUV that leans into comfort, convenience, and value rather than chasing class-leading space or performance. It offers a smooth ride, a roomy cabin for four adults, and a feature set that includes a large touchscreen, a digital driver information display, heated front seats, and a heated steering wheel. GMC also gave it a strong safety and driver-assistance roster for the year, along with Teen Driver technology for families who want more control over new drivers.
What makes the 2021 model especially appealing is how much equipment it brings without feeling stripped down. Front-wheel-drive versions use a continuously variable automatic transmission, while all-wheel-drive models switch to an eight-speed automatic and gain additional drive modes. The Terrain also delivers respectable fuel economy for the class, and its towing capacity reaches 1,500 pounds with all-wheel drive. Buyers who want a compact SUV with a polished interior and a long list of standard features may find that combination compelling.
The Terrain is not perfect, though. Cargo space is on the small side for the segment, and the model does not offer a hybrid powertrain. Still, for shoppers who value a comfortable daily driver with a modern cabin and a good balance of efficiency and equipment, the 2021 GMC Terrain has a clear appeal.
Other model years to consider
- Average price: $24,730.00
- Good/great deal percentage: 34.6%
- User rating: 5 / 5
- Total listings: 5,613
- Average price: $24,895.00
- Good/great deal percentage: 35.2%
- User rating: 5 / 5
- Total listings: 4,896
- Average price: $22,530.00
- Good/great deal percentage: 33.6%
- User rating: 4.83 / 5
- Total listings: 3,468
This analysis is based on CarGurus' proprietary market data from August 10, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
Filter by rating
Deborah W
Reviewed a 2021 GMC Terrain on Nov 20, 2023
It had everything and more in the features that I was looking for. I think it was a good value for all that it offered.
Assata B
Reviewed a 2021 GMC Terrain on Apr 22, 2021
Very nice interior. Excellent options. We went with a black on black model but would have purchased this one if the other had not been available.
Destiney K
Reviewed a 2021 GMC Terrain on Oct 28, 2021
I absolutely adore my Terrain! I love everything about it. Not too big, not too small. Zero complaints. If I did have to make a suggestion I would say blind spot protection, and maybe a bigger screen that shows your speed but not deal breakers and simply just suggestions :)
Ja'Nette J
Reviewed a 2021 GMC Terrain on Apr 5, 2024
I love the Terrain! It drives great and has a smoothest ride. It also is good on gas.
2021 GMC Terrain Trims
| Trim type | MSRP |
|---|---|
| Denali FWD | $35,900 |
| Denali AWD | $37,500 |
| SLT FWD | $32,600 |
| SLE FWD | $28,500 |
| SLT AWD | $34,200 |
| SL FWD | $25,000 |
| SLE AWD | $30,100 |
2021 GMC Terrain Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 GMC Terrain prices has changed over time.
See more price trendsFAQs
How much does the 2021 GMC Terrain cost?
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