[Carl n Susan]

If I am understanding correctly, you are trying to manually run the jacks yourself. This is easy. Press the Up arrow on the left side (below the LCI logo) until the LED display show "Manual Mode", then press "Enter". It is important to press "Enter"!!!!!!!! You can then use the buttons on the right side (Front, Rear, Left, & Right) to adjust the jacks down. To raise the jacks you first need to press the "Retract" button on the left. Then the the right buttons will raise the jacks.

To display the current battery voltage, press the the up arrow on the left side (4 times?) until the LED display shows the current voltage.