It’s an unusual place to put the gas tank door release lever, we know. They’re usually located either on the floor next to the driver’s seat or on the dash on the lower left-hand side of the steering wheel.
It also doesn’t help that the fuel release lever has changed positions on the Santa Fe over the years. From 2005 to 2012, the fuel tank door release lever was placed on the floor area to the left of the driver’s seat. From 2013 to 2018, the fuel tank door release lever migrated to the driver’s side door, and from 2019 on there has been no release lever in the cabin at all—you just have to push on the fuel tank door itself.
Now that you know how to get into your Hyundai Santa Fe’s fuel tank, you’ll want to make sure that you’re filling your vehicle properly. The 2018 Santa Fe uses regular gasoline and holds up to 18.8 gallons in its fuel tank. The 2018 Santa Fe has a fuel economy rating of between 19 and 24 combined miles per gallon, depending on what engine your vehicle is rocking.