GMC Terrain

What is the GMC Terrain?

The Terrain is GMC’s compact SUV, positioned as an entry point to the brand’s SUV range. Its higher-riding shape and passenger cabin suit everyday travel and regular cargo. GMC introduced the model for the 2010 model year, adding a smaller SUV to a lineup that also includes larger utility vehicles.

The Terrain has evolved through three generations. The 2025 generation brought a fresh exterior design and updated technology, which GMC described as a new take on its gateway model.

GMC Terrain generations

The first generation ran from 2010 to 2017 and used the Theta platform. The second followed from 2018 to 2024 on D2XX, with a redesigned body and cabin.

The third generation began in 2025 and is listed as continuing today, also with the D2XX designation. GMC introduced it as a newly designed version of its compact SUV.

Engines and fuel economy

US EPA figures cover Terrain engines from 1.5 L to 3.6 L, including petrol, diesel and flex-fuel E85 versions. The best combined EPA rating is 32 MPG, while the lowest listed consumption is 7.4 L/100 km. These figures span different versions and model years.

Canadian NRCan figures also cover engines from 1.5 L to 3.6 L, with petrol, diesel and flex-fuel E85 choices. The lowest listed consumption is 7.4 L/100 km on Canada’s 5-cycle test. The EPA procedure and Canadian 5-cycle test differ, so market figures are best understood in their own context.

Where was the GMC Terrain sold?

The Terrain appears in official fuel-economy figures for the United States and Canada. The EPA model-year range is 2010–2027, and the NRCan range is 2010–2026. The US EPA and Canadian 5-cycle test procedures differ, even where the listed consumption figure is the same.