None of the major rental car companies allow it. Whether you’ve rented a Jeep, a compact, or a luxury vehicle, you will sign an agreement at the rental counter that voids your contract, and holds you responsible, should you damage your rental car while off-roading. This could be a big “Oopsie”. Fortunately, there aren’t a lot of Hawaiian roads where this is an issue. If you need to get to an area that your rental car company has restricted, we suggest you book with a tour company.