Where your car stands in the heirarchy depends on car model, year, and maitenance of the vehicle.ģ. The heirarchy determines who initiates the wave and is based on factors such as model year, onroad/offroad driving habits, and more. There are different forms of etiquitte depending on factors such as if the top of the car is down or up and the location Jeep owners are responsible for continuing the tradition of the wave.