Abstract: A vehicle leveling assembly includes a plurality of jack assemblies corresponding to four quadrants of a vehicle, and a plurality of sensors for determining jack position and rate of movement. A method of detecting contacting between the shafts of the jack assemblies and the ground includes measuring pulse width of current emitted by the hall effect sensor to monitor the speed of the shafts and recognizing contact with the ground when the shaft slows down. A method of detecting contacting between the shafts of the jack assemblies and the ground includes measuring the electric motor current signal and correlating a pulse from the current signal to the electric motor revolutions per minute and travel of the shafts. A method of calibrating the leveling assembly includes measuring a change in inclination as the jack assemblies are extended a known distance to determine the distance between the jack assemblies.