GMC Terrain Denali AT4 MPG by year
EPA combined, city, and highway gas mileage for every GMC Terrain Denali AT4 model year.
| Year | Combined | City | Highway |
|---|---|---|---|
| 2026 | 25 | 24 | 26 |
EPA combined, city, and highway gas mileage for every GMC Terrain Denali AT4 model year.
| Year | Combined | City | Highway |
|---|---|---|---|
| 2026 | 25 | 24 | 26 |