GMC Terrain Fuel Tank Size by Year
Newest year we have: the 2025 GMC Terrain manual lists 14.8 gal (FWD) or 15.6 gal (AWD). Across 2014–2025 it changes by year and version, so check yours below. Each year links to its owner's manual page.
| Year | Fuel tank size | Source |
|---|---|---|
| 2025 | 14.8 gal FWD15.6 gal AWD | 2025 manual → |
| 2024 | 14.8 gal FWD15.6 gal AWD | 2024 manual → |
| 2023 | 14.8 gal FWD15.6 gal AWD | 2023 manual → |
| 2022 | 14.8 gal FWD15.6 gal AWD | 2022 manual → |
| 2021 | 14.8 gal FWD15.6 gal AWD | 2021 manual → |
| 2020 | 14.8 gal | 2020 manual → |
| 2019 | 14.8 gal | 2019 manual → |
| 2018 | 14.8 gal | 2018 manual → |
| 2017 | 18.8 gal 2.4L L4 Engine20.9 gal 3.6L V6 Engine | 2017 manual → |
| 2016 | 18.8 gal 2.4L L4 Engine20.9 gal 3.6L V6 Engine | 2016 manual → |
| 2015 | 18.8 gal 2.4L L4 Engine20.9 gal 3.6L V6 Engine | 2015 manual → |
| 2014 | 18.8 gal 2.4L L4 Engine20.9 gal 3.6L V6 Engine | 2014 manual → |
Years are the 2014–2025 model years we have the owner's manual for. Open a year to see every version and the page it's printed on.
Confirm with your own manual, dipstick or door-jamb label.
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