The Vehicle I'm Working On Is Not in Your List
Q. I'm working on a vehicle that doesn't exist in your available list of vehicles (motorhomes, large trucks, etc.)
Answer:
When you choose to Add Vehicle, and searching by Year, Make, Model, you will see in the upper right area of the first screen "use Custom Vehicle." Click to add a check mark to that box and you will be able to enter the year, and create the Make and Model. Those that you add will remain in the list of Custom vehicles for future use.