An excellent resource is the Kelly Blue Book (KBB.com). Be sure to accurately input the correct options, mileage, etc for your vehicle, and choose the “private party” option. (The other options are wholesale, which is what a dealership would pay you for your vehicle, or retail, what a dealership would sell your vehicle for, after they clean and inspect it). There are other sources as well, such as the Auto Trader, Edmonds, etc.
