2026 GMC Terrain: Terrain AWD Denali/AT4 · 1.5L · AWD · 8-speed automatic
One configuration of the 2026 GMC Terrain as listed by our sources.
| Engine | 1.5L 4-cylinder turbocharged (SIDI) |
|---|---|
| Displacement | 1.5 L |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Transmission | 8-speed automatic |
| Drivetrain | AWD |
| Combined economy | 25 mpg (9.4 L/100 km) |
| City economy | 24 mpg (9.8 L/100 km) |
| Highway economy | 26 mpg (9.0 L/100 km) |