Yes, the IRS considered an RV like a home. So if the loan used to buy the RV (and your RV has sleeping, cooking and toilet facilities) and you paid interest on this loan in 2016, you will be able to deduct this interest as interest on a home. (Just make sure that you keep tax records showing how the loan was used to buy the RV for future reference.)
You can put this interest expense under your home section because the IRS considers this a home for tax purposes.
Since you are using TurboTax Home and Business Desktop Edition, to enter your RV Interest, please follow these steps: