2020 GMC Terrain
27MPG
Combined
4
Trims
Updated February 27, 2026
The 2020 GMC Terrain Compact SUV provides 23–27 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.
2020 GMC Terrain Specifications
| Spec | Value |
|---|---|
| Combined MPG | 23–27 combined MPG depending on trim |
| City MPG | 26 |
| Highway MPG | 30 |
| Body Style | Compact SUV |
| Fuel Type | Regular |
| Drive | AWD |
| Available Trims | 4 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 25/28/26 | 1.5L 4cyl | Automatic 9-spd |
| Auto | 21/26/23 | 2.0L 4cyl | Automatic 9-spd |
| Auto | 26/30/27 | 1.5L 4cyl | Automatic 9-spd |
| Auto | 22/28/24 | 2.0L 4cyl | Automatic 9-spd |
Annual Fuel Cost
Based on EPA estimates, the 2020 GMC Terrain costs approximately $2,087 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2020 GMC Terrain
See how it stacks up against similar vehicles:
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- 2020 (this page)
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Check Vehicle History
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