when your in the map controllers mode, select mode 2. When in that section you can click to choose "copy mode 1", or you can reprogram everything as you did for the plane, but for a vehicle.
I copied mode 1, then I changes a couple things like instead of the switches I used for my flaps to go up and down, I set those to change gears. The "drop gear" button was changed to "start engine", and so on.