GMC Terrain Gas Mileage (2010-2027)

The GMC Terrain gas mileage is 19 to 33.5 miles per gallon as specified in our data below, organized by trim, option package, and model year.

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For example, the 2011 GMC Terrain SLE2 trim model has a combined gas mileage of 19 miles per gallon, while the 2020 GMC Terrain SLE has a combined gas mileage of 33.5 miles per gallon.

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In the city, the Terrain gas mileage is 16 to 28 miles per gallon depending on the trim and model year.

On the highway, the Terrain gas mileage is 22 to 39 miles per gallon depending on the trim and model year.

Note: The gas mileage shown for hybrid vehicles is the miles per gallon equivalent.

Check out the Gas Mileage specifications for other makes and models.

2027 GMC Terrain Gas Mileage

Depending on trim level, the 2027 GMC Terrain gas mileage is from 25 to 27 miles per gallon combined.

In the city, the 2027 Terrain gas mileage is from 24 to 26 miles per gallon, depending on the trim.

On the highway, the 2027 Terrain gas mileage is from 26 to 28 miles per gallon, depending on the trim.

2026 GMC Terrain Gas Mileage

Depending on trim level, the 2026 GMC Terrain gas mileage is from 25 to 27 miles per gallon combined.

In the city, the 2026 Terrain gas mileage is from 24 to 26 miles per gallon, depending on the trim.

On the highway, the 2026 Terrain gas mileage is from 26 to 28 miles per gallon, depending on the trim.

2024 GMC Terrain Gas Mileage

Depending on trim level, the 2024 GMC Terrain gas mileage is from 26 to 27 miles per gallon combined.

In the city, the 2024 Terrain gas mileage is from 23 to 24 miles per gallon, depending on the trim.

On the highway, the 2024 Terrain gas mileage is from 28 to 29 miles per gallon, depending on the trim.

2023 GMC Terrain Gas Mileage

Depending on trim level, the 2023 GMC Terrain gas mileage is from 26 to 26.5 miles per gallon combined.

In the city, the 2023 Terrain gas mileage is 24 miles per gallon.

On the highway, the 2023 Terrain gas mileage is from 28 to 29 miles per gallon, depending on the trim.

2022 GMC Terrain Gas Mileage

Depending on trim level, the 2022 GMC Terrain gas mileage is from 26.5 to 27.5 miles per gallon combined.

In the city, the 2022 Terrain gas mileage is 25 miles per gallon.

On the highway, the 2022 Terrain gas mileage is from 28 to 30 miles per gallon, depending on the trim.

2021 GMC Terrain Gas Mileage

Depending on trim level, the 2021 GMC Terrain gas mileage is from 26.5 to 27.5 miles per gallon combined.

In the city, the 2021 Terrain gas mileage is 25 miles per gallon.

On the highway, the 2021 Terrain gas mileage is from 28 to 30 miles per gallon, depending on the trim.

2020 GMC Terrain Gas Mileage

Depending on trim level, the 2020 GMC Terrain gas mileage is from 23.5 to 33.5 miles per gallon combined.

In the city, the 2020 Terrain gas mileage is from 21 to 28 miles per gallon, depending on the trim.

On the highway, the 2020 Terrain gas mileage is from 26 to 39 miles per gallon, depending on the trim.

2019 GMC Terrain Gas Mileage

Depending on trim level, the 2019 GMC Terrain gas mileage is from 23.5 to 33.5 miles per gallon combined.

In the city, the 2019 Terrain gas mileage is from 21 to 28 miles per gallon, depending on the trim.

On the highway, the 2019 Terrain gas mileage is from 26 to 39 miles per gallon, depending on the trim.

2018 GMC Terrain Gas Mileage

Depending on trim level, the 2018 GMC Terrain gas mileage is from 23.5 to 33.5 miles per gallon combined.

In the city, the 2018 Terrain gas mileage is from 21 to 28 miles per gallon, depending on the trim.

On the highway, the 2018 Terrain gas mileage is from 26 to 39 miles per gallon, depending on the trim.

2017 GMC Terrain Gas Mileage

Depending on trim level, the 2017 GMC Terrain gas mileage is from 19.5 to 26 miles per gallon combined.

In the city, the 2017 Terrain gas mileage is from 16 to 21 miles per gallon, depending on the trim.

On the highway, the 2017 Terrain gas mileage is from 23 to 31 miles per gallon, depending on the trim.

2016 GMC Terrain Gas Mileage

Depending on trim level, the 2016 GMC Terrain gas mileage is from 19.5 to 27 miles per gallon combined.

In the city, the 2016 Terrain gas mileage is from 16 to 22 miles per gallon, depending on the trim.

On the highway, the 2016 Terrain gas mileage is from 23 to 32 miles per gallon, depending on the trim.

2015 GMC Terrain Gas Mileage

Depending on trim level, the 2015 GMC Terrain gas mileage is from 19.5 to 27 miles per gallon combined.

In the city, the 2015 Terrain gas mileage is from 16 to 22 miles per gallon, depending on the trim.

On the highway, the 2015 Terrain gas mileage is from 23 to 32 miles per gallon, depending on the trim.

2014 GMC Terrain Gas Mileage

Depending on trim level, the 2014 GMC Terrain gas mileage is from 19.5 to 27 miles per gallon combined.

In the city, the 2014 Terrain gas mileage is from 16 to 22 miles per gallon, depending on the trim.

On the highway, the 2014 Terrain gas mileage is from 23 to 32 miles per gallon, depending on the trim.

2013 GMC Terrain Gas Mileage

Depending on trim level, the 2013 GMC Terrain gas mileage is from 19.5 to 27 miles per gallon combined.

In the city, the 2013 Terrain gas mileage is from 16 to 22 miles per gallon, depending on the trim.

On the highway, the 2013 Terrain gas mileage is from 23 to 32 miles per gallon, depending on the trim.

2012 GMC Terrain Gas Mileage

Depending on trim level, the 2012 GMC Terrain gas mileage is from 20.5 to 27 miles per gallon combined.

In the city, the 2012 Terrain gas mileage is from 17 to 22 miles per gallon, depending on the trim.

On the highway, the 2012 Terrain gas mileage is from 24 to 32 miles per gallon, depending on the trim.

2011 GMC Terrain Gas Mileage

Depending on trim level, the 2011 GMC Terrain gas mileage is from 19 to 27 miles per gallon combined.

In the city, the 2011 Terrain gas mileage is from 16 to 22 miles per gallon, depending on the trim.

On the highway, the 2011 Terrain gas mileage is from 22 to 32 miles per gallon, depending on the trim.

2010 GMC Terrain Gas Mileage

Depending on trim level, the 2010 GMC Terrain gas mileage is from 20.5 to 27 miles per gallon combined.

In the city, the 2010 Terrain gas mileage is from 17 to 22 miles per gallon, depending on the trim.

On the highway, the 2010 Terrain gas mileage is from 24 to 32 miles per gallon, depending on the trim.