Used 2021 GMC Terrain for Sale nearMilwaukee, WI
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:
- Four-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 23 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 30,974
- Stock #:
- P3485
- VIN:
- 3GKALXEX0LL335975
-$1,071
Sponsored by Miller Motor Sales
2020 GMC Terrain
Denali AWD
30,974 mi
$25,397
$24,326
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Graphite Gray Metallic
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 65,252
- Stock #:
- H21594B
- VIN:
- 3GKALMEV5LL184869
-$589
Sponsored Listing
2020 GMC Terrain
SLE FWD
65,252 mi
$18,873
$18,284
- 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:
- Cayenne Red
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 50,403
- Stock #:
- K49018C
- VIN:
- 3GKALVEVXNL141217
Sponsored Listing
2022 GMC Terrain
SLT AWD
50,403 mi
$24,897
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Blue
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 87,714
- Stock #:
- 217460
- VIN:
- 3GKALVEV9LL217460
2020 GMC Terrain
SLT AWD
87,714 mi
$15,394
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 23 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 61,740
- Stock #:
- 261053A
- VIN:
- 3GKALVEX5LL101397
2020 GMC Terrain
SLT AWD
61,740 mi
$21,385
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 23 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 30,974
- Stock #:
- P3485
- VIN:
- 3GKALXEX0LL335975
-$1,071
2020 GMC Terrain
Denali AWD
30,974 mi
$25,397
$24,326
- 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:
- Gray
- Transmission:
- Automatic
- Mileage:
- 30,873
- Stock #:
- 10504P
- VIN:
- 3GKALXEV9NL178464
2022 GMC Terrain
Denali AWD
30,873 mi
$29,353
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 93,712
- Stock #:
- 20909-3
- VIN:
- 3GKALSEX6LL302658
2020 GMC Terrain
Denali FWD
93,712 mi
$20,119
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Graphite Gray Metallic
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 65,252
- Stock #:
- H21594B
- VIN:
- 3GKALMEV5LL184869
-$589
2020 GMC Terrain
SLE FWD
65,252 mi
$18,873
$18,284
- 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:
- Cayenne Red Tintcoat
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 72,176
- Stock #:
- X2116
- VIN:
- 3GKALPEV0NL194018
-$474
2022 GMC Terrain
SLT FWD
72,176 mi
$20,746
$20,272
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 252 hp 2L I4
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 23 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 78,164
- Stock #:
- 250034X
- VIN:
- 3GKALXEX9LL313733
2020 GMC Terrain
Denali AWD
78,164 mi
$21,101
- 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:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic Overdrive
- Mileage:
- 84,433
- Stock #:
- 913
- VIN:
- 3GKALMEV4ML334164
2021 GMC Terrain
SLE FWD
84,433 mi
$18,306
- 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:
- 25,399
- Stock #:
- 23M2046T
- VIN:
- 3GKALVEV2NL282699
2022 GMC Terrain
SLT AWD
25,399 mi
$24,638
CarGurus Analysis:
2021 GMC Terrain
With 156 currently listed for sale near Milwaukee, WI and an average price of $17,826.00, 49.4% 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.
100.0% of 2021 Terrain models on CarGurus are accident free.
The 2021 GMC Terrain is praised for its stylish interior, smooth ride, and fuel efficiency, although some owners noted minor omissions like the lack of a standard auto wiper feature.
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 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:
- 34,483
- Stock #:
- 100480
- VIN:
- 3GKALTEV9LL279977
2020 GMC Terrain
SLE AWD
34,483 mi
$22,629
- 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:
- Automatic
- Mileage:
- 39,726
- Stock #:
- P5271
- VIN:
- 3GKALVEV4NL306498
2022 GMC Terrain
SLT AWD
39,726 mi
$26,109
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Black
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 115,777
- Stock #:
- 150870
- VIN:
- 3GKALPEV5LL150870
2020 GMC Terrain
SLT FWD
115,777 mi
$14,057
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 73,384
- Stock #:
- K26804A
- VIN:
- 3GKALPEV3LL126986
2020 GMC Terrain
SLT FWD
73,384 mi
$19,356
- 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:
- 50,149
- Stock #:
- 71080I
- VIN:
- 3GKALMEV2NL139021
2022 GMC Terrain
SLE FWD
50,149 mi
$20,773
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 28 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 85,921
- Stock #:
- OP34131A
- VIN:
- 3GKALMEV8LL342623
-$500
2020 GMC Terrain
SLE FWD
85,921 mi
$15,632
$15,132
- 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:
- Cayenne Red Tintcoat
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Light Platinum/Dark Galvanized)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 41,942
- Stock #:
- HY0506
- VIN:
- 3GKALVEV9NL201360
-$500
2022 GMC Terrain
SLT AWD
41,942 mi
$23,314
$22,814
- Year:
- 2020
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 96,872
- Stock #:
- C4692A
- VIN:
- 3GKALVEV9LL243959
2020 GMC Terrain
SLT AWD
96,872 mi
$15,197
- 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:
- Summit White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 92,808
- Stock #:
- H21492B
- VIN:
- 3GKALTEV0ML305190
-$398
2021 GMC Terrain
SLE AWD
92,808 mi
$18,273
$17,875
- 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:
- Silver
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- 9-Speed Automatic
- Mileage:
- 26,837
- Stock #:
- 5922
- VIN:
- 3GKALVEV1NL118778
Sponsored Listing
2022 GMC Terrain
SLT AWD
26,837 mi
$26,569
CarGurus Analysis: 2021 GMC Terrain
Summary
With 156 currently listed for sale near Milwaukee, WI and an average price of $17,826.00, 49.4% 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.
100.0% of 2021 Terrain models on CarGurus are accident free.
The 2021 GMC Terrain is praised for its stylish interior, smooth ride, and fuel efficiency, although some owners noted minor omissions like the lack of a standard auto wiper feature.
Why it stands out
The 2021 GMC Terrain distinguishes itself in the compact SUV segment with its stylish and angular design, which appeals to buyers looking for a vehicle that can handle both urban and off-road adventures. It shares much of its platform with the Chevrolet Equinox, but the Terrain offers a more premium feel, especially in its Denali trim. The Terrain is equipped with a range of modern features, including advanced safety technologies and a comfortable interior, making it a strong contender for families and individuals alike. While it lacks a hybrid option, its fuel efficiency and smooth ride are significant advantages. Overall, the 2021 Terrain is a well-rounded vehicle that balances style, comfort, and practicality.
Other model years to consider
- Average price: $23,678.00
- Good/great deal percentage: 53.4%
- User rating: 5 / 5
- Total listings: 204
- Average price: $21,758.00
- Good/great deal percentage: 58.7%
- User rating: 4.83 / 5
- Total listings: 155
- Average price: $16,851.00
- Good/great deal percentage: 41.8%
- User rating: 5 / 5
- Total listings: 196
This analysis is based on CarGurus' proprietary market data from July 14, 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 in Milwaukee, WI?
How many 2021 GMC Terrain vehicles in Milwaukee, WI have no reported accidents or damage?
What is the fuel economy of the 2021 GMC Terrain?
What fuel types are available?
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